СПОСОБ ОПРЕДЕЛЕНИЯ АДАПТАЦИИ К ОРТОПЕДИЧЕСКИМ СТОМАТОЛОГИЧЕСКИМ КОНСТРУКЦИЯМ

Изобретение относится к медицине, а именно к ортопедической стоматологии, и предназначено для определения уровня адаптации к различным конструкциям протезов при ортопедическом лечении больных с частичным и полным отсутствием зубов. С помощью «Протокола динамической оценки адаптации пациента к ортопедической стоматологической конструкции» по трехбалльной шкале оценивают уровень адаптации пациента по пяти основным группам-категориям: «жевательный дискомфорт», «тактильный дискомфорт», «признаки травмы слизистой оболочки протезного ложа», «характер слюноотделения» и «коммуникативный дискомфорт». Адаптацию к ортопедическим конструкциям определяют по «коэффициенту дезадаптации», который вычисляется по формуле КДА=100×Σ/n, где Σ - сумма полученных в ходе опроса баллов, n - общее число утверждений, равное 15, КДА - коэффициент дезадаптации. Лица, имеющие оценку выше 130 баллов, имеют достоверно определенные признаки дезадаптации. Обследуемых, характеризующихся оценкой ниже 60 баллов, рассматривают ...

СПОСОБ ДИАГНОСТИКИ ДЕСТРУКТИВНЫХ ФОРМ ХРОНИЧЕСКОГО ПЕРИОДОНТИТА

Способ может быть использован в области медицины, а именно в стоматологии, в частности для диагностики и контроля за эффективностью лечения деструктивных форм хронических периодонтитов. Способ обеспечивает повышение точности диагностики. Световод осветителя с достаточным по интенсивности пучком "холодного" света (источник света - галогенная лампа накаливания 24В, 150В) подводят со стороны кожи к проекции корня или корней исследуемого зуба и с небной или язычной поверхности альвеолярного отростка верхней или нижней челюсти оценивают трансиллюминационную картину. При отсутствии деструктивных форм хронического периодонтита поверхность альвеолярного отростка при просвечивании остается гомогенной, а при их наличии определяются различного размера и интенсивности затенения, соответствующие проекции корней исследуемых зубов. 2 ил.

Способ измерения толщины десны над альвеолярной костью челюсти

Изобретение относится к медицине, а именно к хирургической и ортопедической стоматологии, и предназначено для измерения толщины мягких тканей над костью в любой интересующей области альвеолярной части челюсти. Предложен способ сравнительного измерения толщины мягких тканей над альвеолярной частью челюсти, который включает проведение до удаления зуба конусно-лучевой компьютерной томографии, затем снимают оттиски и изготавливают модели зубных рядов, которые сканируют. Данные конусно-лучевой компьютерной томографии и сканы моделей загружают в компьютерную программу и по реперным точкам сопоставляют данные конусно-лучевой томографии и сканов, далее встроенными в программу средствами измеряют толщину мягких тканей над костью в любой интересующей области альвеолярной части. После удаления зуба, установки дентального имплантата и коронки на имплантат по месту отсутствующего зуба отслеживают состояние мягких тканей путем повторного определения толщины мягких тканей описанным выше способом и сравнивают ...

ОПОРА ДЛЯ ПОДБОРОДКА ПРИ ПРОВЕДЕНИИ КОНУСНО-ЛУЧЕВОЙ КОМПЬЮТЕРНОЙ ТОМОГРАФИИ БЕЗЗУБЫХ ЧЕЛЮСТЕЙ

Предлагаемая полезная модель относится к области медицины, а именно к диагностическим устройствам, и может быть использована в стоматологии при проведении конусно-лучевой компьютерной томографии челюстно-лицевой области, в частности у пациентов с полной потерей зубов. Опора выполнена из твердого полимерного материала в виде симметрично-изогнутой Т-образной во фронтальной плоскости пластины, размещаемой в прикусном блоке конусно-лучевого компьютерного томографа. На нижнем конце наружной стороны опоры расположены углубления для регулирования ее высоты. Опора имеет Г-образную форму в сагиттальной плоскости, верхняя часть опоры выполнена в виде площадки для упора подбородка. Высота площадки 6 мм и ширина 38±2 мм. Предполагаемая полезная модель позволяет повысить точность диагностики заболеваний челюстно-лицевой области при использовании конусно-лучевой компьютерной томографии у пациентов с полной потерей зубов, сопровождающейся снижением высоты прикуса. Снимки, сделанные с применением данной ...

Способ фиксации рентгеноконтрастных маркеров при адентии для проектирования хирургического навигационного шаблона

Изобретение относится к медицине, а именно к хирургической стоматологии. Способ фиксации рентгеноконтрастных маркеров при объединении изображений компьютерной томографии в формате DICOM-файла с интраоральным сканом альвеолярного гребня челюсти в формате STL-файла при адентии для проектирования хирургического навигационного шаблона, заключается в том, что после высушивания слизистой оболочки полости рта на неподвижную слизистую альвеолярного гребня челюсти наносят пленку «Диплен-Дента», на которой затем фиксируют рентгенокотрастные маркеры из рентгеноконтрастного жидкотекучего светоотверждаемого композита, и полимеризуют их. Получают STL-файл интраоральным сканированием альвеолярного гребня челюсти. Получают DICOM-файл конуснолучевой компьютерной томографией. Объединяют их с помощью рентгеноконтрастных маркеров, после чего проектируют хирургический навигационный шаблон. Достигается улучшение фиксации рентгеноконтрастных маркеров в полости рта, в связи с этим снижение к минимуму возникновения ...

Устройство для получения МРТ-изображения височно-нижнечелюстного сустава в заданных положениях нижней челюсти и способ его использования

Группа изобретений относится к медицине. Устройство для получения МРТ-изображений височно-нижнечелюстного сустава состоит из небной пластинки, изготовленной из самотвердеющей пластмассы. При этом в месте расположения зубов выполнены углубления в заданных положениях центральной окклюзии, передней окклюзии, боковых окклюзиях, при максимальном ретроположении челюсти, с возможностью фиксации зубов нижней челюсти пациента. При осуществлении способа получения МРТ-изображений височно-нижнечелюстного сустава устройство фиксируют на верхней челюсти, помещают пациента в МРТ-аппарат. Затем пациент сжимает челюсть последовательно в заданных положениях: центральной окклюзии, передней окклюзии, боковых окклюзиях, при максимальном ретроположении челюсти. При этом нижняя челюсть фиксируется благодаря углублениям, выполненным на устройстве. При каждом заданном положении нижней челюсти получают МРТ-изображение височно-нижнечелюстного сустава. Применение данной группы изобретений обеспечит получение четких ...

СПОСОБ ПРОГНОЗИРОВАНИЯ НАПРАВЛЕНИЯ РОСТА КОСТЕЙ ЛИЦЕВОГО СКЕЛЕТА

Способ может быть использован в области медицины, в частности в стоматологии и риноотоларингологии, и позволяет прогнозировать тенденцию направления роста костей лицевого скелета у "растущих" пациентов до и в процессе ортодонтического лечения, а также перед возможными корригирующими операциями на лице. На телерентгенограмме головы в боковой проекции определяют цефалометрические показатели гнато- и краниометрии по углу наклона нижней челюсти к основанию черепа и базальному углу челюстей, а также по углу наклона верхней челюсти к основанию черепа, углу наклона линии подбородка, углу лицевой оси. Составляют отношение суммы угла ротации верхней челюсти и межчелюстного базального угла к разности угла наклона подбородка с углом лицевой оси, суммированный с углом наклона нижней челюсти к основанию черепа, и в случае, если это отношение больше единицы, устанавливают вертикальную тенденцию роста челюстей, если меньше - горизонтальную тенденцию, а при равенстве единице - нейтральную. 1 ил.

СПОСОБ ОЦЕНКИ СОСТОЯНИЯ КЕРАМИЧЕСКИХ ВКЛАДОК

Изобретение относится к медицине, в частности к стоматологии, и предназначено для оценки состояния керамических вкладок после фиксации. Проводят визуальный осмотр реставрации с использованием стоматологического зеркала, зонда и операционного микроскопа. Оценивают чувствительность зуба после лечения, наличие трещин на керамической вкладке и на поверхностях тканей зуба, видимых с использованием операционного микроскопа и без применения специальных средств, наличие перелома реставрации, текстуру поверхности, появление вторичного кариеса, окклюзионный и апроксимальный контакты, краевую адаптацию между вкладкой, цементом и эмалью зуба, состояние фиксирующего цемента. Оценку проводят по оценочной шкале. Каждый из критериев анализируют отдельно. При оценке 0 - состояние керамической вкладки оценивают как превосходное. При оценке 1 - состояние керамической вкладки оценивают как приемлемое и проводят коррекцию недостатков. При оценке 2 - состояние керамической вкладки оценивают как удовлетворительное ...

СПОСОБ ДИАГНОСТИКИ ПОРАЖЕНИЙ ВИСОЧНО-НИЖНЕЧЕЛЮСТНОГО СУСТАВА

Изобретение относится к области стоматологии и может быть использовано для доклинической диагностики поражений височно-нижнечелюстного сустава, профилактики его заболеваний и оценки ближайших результатов их лечения. Цель изобретения - повышение точности диагностики и выявление на ранних стадиях заболеваний височно-нижнечелюстного сустава. Способ диагностики поражений височно-нижнечелюстного сустава заключается в реографии. Новым в способе является проведение реографии в области жевательных зубов обеих челюстей и диагностики височно-нижнечелюстного сустава по снижению тонуса сосудов пародонта в перекрестных участках. 4ил.

РЕНТГЕНОВСКАЯ ДИАГНОСТИЧЕСКАЯ УСТАНОВКА

Использование: в медицинской технике, а именно в рентгеновских диагностических устройствах для дентальных исследований. Сущность: рентгеновская диагностическая установка содержит рентгеновскую трубку с выносным анодом и элементами уменьшения фокусного пятна, электронно-оптический преобразователь, состоящий из люминесцентного экрана, нанесенного на вход оптической системы, выход которой соединен с высокочувствительным кинескопом, связанным со средствами обработки и вывода полученных данных, при этом оптическая система выполнена в виде входного и выходного фоконов, подобных по форме, установленных зеркально и соединенных волоконно-оптическим жгутом, при этом сечение входа и выхода оптической системы имеют форму эллипса, или круга, площадь которых больше площади соответствующих противоположных круговых сечений фоконов. Кроме того люминесцентный экран может быть выполнен из слоя монокристаллического люминофора толщиной, меньшей 60 мкм или из тонкого слоя поликристаллического люминофора, а также ...

СПОСОБ ОПРЕДЕЛЕНИЯ УСТЬЯ ДОПОЛНИТЕЛЬНОГО КОРНЕВОГО КАНАЛА ЗУБА

Данное изобретение относится к стоматологии, а именно к эндодонтии, и предназначено для использования при определении устья дополнительного корневого канала зуба. Проводят компьютерную томографию исследуемого зуба, раскрытие его полости, снятие слепка, отливку модели и сканирование коронковой части модели исследуемого зуба. Определяют устье дополнительного канала путем совмещения полученных изображений компьютерной томографии исследуемого зуба и сканирования его коронковой части. Далее путем компьютерного моделирования получают трехмерное изображение шаблона с коническим отверстием, совпадающим с устьем дополнительного канала. Затем изготавливают шаблон, который надевают на исследуемый зуб, и через имеющееся отверстие в шаблоне локализуют устье дополнительного канала на дне полости зуба с помощью эндодонтического инструмента. Способ позволяет точно определить устье дополнительного корневого канала и локализовать его с помощью эндодонтического инструмента. 1 пр.

СПОСОБ ОПРЕДЕЛЕНИЯ ИНДИВИДУАЛЬНОЙ ТОПОГРАФИИ ОККЛЮЗИОННОЙ ПЛОСКОСТИ

Изобретение относится к медицине, а именно к ортопедической стоматологии, и предназначено для определения индивидуальной топографии окклюзионной плоскости. На томограмме головы в сагиттальной проекции определяют межчелюстной угол между линиями, являющимися проекциями плоскости основания верхней челюсти между точками Spa и Pm и плоскости тела нижней челюсти между точками Me и Go. Проводят линию, касательную к скату суставного бугорка. Линию, являющуюся проекцией окклюзионной плоскости, определяют по формуле: угол, образованный проекцией окклюзионной плоскости и линией, касательной к скату суставного бугорка - С= межчелюстной угол, где С - постоянная константа, равная 30 градусам. Способ позволяет определить индивидуальную топографию окклюзионной плоскости и облегчить планирование ортопедического лечения пациентов с дефектами зубных рядов за счет определения зависимости межчелюстного угла и угла, сформированного пересечением линий окклюзионной плоскости и касательной линией к скату суставного ...

СПОСОБ ОПРЕДЕЛЕНИЯ СТЕПЕНИ РАЗРУШЕНИЯ ПАРОДОНТА

Способ определения степени разрушения пародонта, включающий рентгенологическое обследование, отличающийся тем, что используют эластичные каппы в которые при изготовлении помещают конгруэнтно контуру десны рентгено - контрастную сетку с диаметром ячейки 1 мм, и рентгеноконтрастную нить, введенную на дно кармана, вокруг исследуемых зубов, измеряют несколько глубин карманов, а затем определяют суммарное разрушение в пародонте по формуле где СР - степень разрушения пародонта, D1, D2,…Dn - средняя глубина каждого исследуемого костного кармана в мм, L1, L2…Ln - общая длина исследуемого корня зуба в мм, и при условии значения СР до 20% определяют 1 степень разрушения пародонта, от 20 до 50% - 2 степннь, и выше 50% - 3 степень.

СПОСОБ ОПРЕДЕЛЕНИЯ ОККЛЮЗИОННОЙ КРИВОЙ ШПЕЕ ПРИ АНОМАЛИЯХ И ДЕФОРМАЦИЯХ ЗУБНЫХ ДУГ

СПОСОБ И СИСТЕМА ДЛЯ ХИРУРГИИ, НАПРАВЛЯЕМОЙ ДОПОЛНЕННОЙ РЕАЛЬНОСТЬЮ

СПОСОБ ДИАГНОСТИКИ НАЧАЛЬНОГО КАРИЕСА ЗУБОВ

Изобретение относится к медицине и может быть использовано в стоматологии для выявления кариеса на видимых и скрытых поверхностях зубов. Предлагаемый способ диагностики начального кариеса зубов заключается в нанесении флуоресцирующего 1% красителя «Родамин С» на участок измененных тканей зуба после снятия зубного налета и фиксации красителя в течение 1-3 мин, при одновременном втирании красителя с помощью микроаппликатора, после чего избыток красителя смывают водой, влагу удаляют, осуществляют его проявление с помощью стоматологической полимеризационной лампы и по наличию окрашивания в красный цвет при визуализации через оранжевый светозащитный фильтр определяют начальный кариес. Использование способа обеспечивает достоверное выявление начального кариеса в короткие сроки и без необходимости использования специальных приборов. 2 пр., 4 ил.

СПОСОБ ИЗМЕРЕНИЯ АПИКАЛЬНОГО БАЗИСА ЧЕЛЮСТЕЙ

... 1. Способ измерения апикального базиса челюстей, заключающийся в том, что гипсовую модель устанавливают и закрепляют на горизонтальном столике, отличающийся тем, что измерения производят бесконтактным путем, направляя одновременно с двух сторон тонкие лучи, например лазерные, оптоэлектронной измерительной системы на модель, начиная на уровне дистальных поверхностей первых постоянных моляров в медиальном направлении по всей длине альвеолярной дуги до пересечения лучей в центре на уровне межрезцовой линии, измеряют длину альвеолярной дуги Dа, аналогичным образом измеряют длину базальной Dб и зубной Dз дуг, сравнивают их между собой и по величине разности судят о степени сужения челюсти и характере ее роста. 2. Способ по п.1, отличающийся тем, что измерение длины зубной дуги производят по всей длине по середине окклюзионной поверхности боковых зубов и по режущим краям резцов, начиная с дистальной поверхности первых постоянных моляров до их пересечения на уровне межрезцового центра. 3. Способ ...

СПОСОБ ОПРЕДЕЛЕНИЯ ПЛОТНОСТИ КОСТНОЙ ТКАНИ ЧЕЛЮСТЕЙ

Изобретение относится к медицине, а именно к стоматологии, и может быть использовано при определении плотности костной ткани челюстей. Данный способ предусматривает проведение рентгенологического исследования заданной области. При этом снимают ортопантомограмму. На снимке в области воздушной верхнечелюстной пазухи определяют минимальную яркость, а в области носовой ости, симфиза нижней челюсти или скуловой кости - максимальную яркость. При значениях минимальной яркости 3-5% градаций серого и максимальной яркости 87-90% градаций серого снимок относят к средним по яркости. При значениях минимальной яркости 0-2% градаций серого и максимальной яркости до 86% градаций серого снимок относят к светлым. При значениях минимальной яркости от 6% градаций серого и максимальной яркости от 91% градаций серого снимок относят к темным. Плотность костной ткани определяют относительно среднего по яркости снимка, при получении светлого снимка значение его градаций умножают на поправочный коэффициент, определяемый ...

Способ диагностики морфофункционального состояния височно-нижнечелюстного сустава у детей с дистальной окклюзией

Способ профилактики дисфункции височно-нижнечелюстного сустава у пациентов с полным отсутствием постоянных зубов на верхней и нижней челюсти

Оптический негатоскоп

DEVICE FOR FIXATION OF PATIENT HEAD IN EXAMINATION OF TOOTH-MAXILLARY-FACIAL SYSTEM

Способ панорамной рентгенографии для зубной дуги и челюстей

Использование: в медицине, а именно в рентгенодиагностической аппаратуре. Сущность изобретения: панорамный рентгеновский снимок формируют из ряда последовательных частичных изображений, посредством подвижных рентгенографических элементов, каждое из которых получают экспонированием рентгеновского луча при его движении развертки от начального стартового положения, при этом переход к экспонированию рентгеновским лучом последующего частичного изображения осуществляется путем отключения рентгеновского луча при прекращении движения развертки в конце получения предыдущего частичного изображения и перемещения источника излучения в новое стартовое положение, дополненное корректирующим перемещением, осуществляемым по определенной зависимости от скорректированного стартового положения, расположенного с опережением относительно его начального стартового положения . Ориентация рентгеновского луча в начальном стартовом положении последующего частичного изображения совпадает с его ориентацией в конечном ...

Verfahren zur Herstellung einer Bohrschablone zum Einbringen von implantologischen Bohrungen

Verfahren zur Herstellung einer Bohrschablone (1) zum Einbringen von implantologischen Bohrungen (2), bei dem basierend auf segmentierten Bilddaten eines erfassten Datensatzes des Kieferbereichs eines Patienten ein virtuelles Modell eines relevanten Teilbereichs des Kiefers (3) erstellt und aus dem virtuellen Modell ein körperliches 3D-Modell (5) mit einem Rapid-Prototyping-Verfahren oder einem 3D-Druckverfahren hergestellt und das 3D-Modell (5) in zumindest einem transparenten Teilbereich zur Visualisierung wesentlicher Merkmale des Zahn-, Mund- und Kieferbereichs (3) des Patienten eingefärbt wird, wobei anschließend in das körperliche 3D-Modell (5) analog zu einer vorgesehenen Behandlung des Patienten eine Bohrung (6) für das ausgewählte Implantat manuell eingebracht wird, um so den an dem Patienten geplanten Eingriff zunächst an dem 3D-Modell (5) simulieren zu können, dann die Position/Orientierung der jeweiligen Bohrung (6) in Bezug auf das 3D-Modell (5) erfasst wird und bei dem schließlich ...

Röntgendiagnostikgerät für Tomosynthese

Disclosed is a method and a device enabling x-rax pictures for tomosynthesis to be produced by means of an x-ray examination unit. The method consists in generating radiated pulses from various directions during the radiation detection of an object (3); selecting during the radiation break such signals which can be deflected by a radiation receiver intended for a solid body (2); supplying such signals to a computing and control device (4) and calculating at least one positron emission tomography of at least one predetermined layer.

Intraoral eines Patientenmundes plazierbarer Sensor zur Erstellung von Zahn-/Kieferaufnahmen eines Patienten

Bedien- und/oder Anzeigevorrichtung für ein zahnärztliches Arbeitsgerät

Röntgenortungs- und Operationshilfseinrichtung für die zahnärztliche Chirurgie

Halterungsvorrichtung insbesondere fuer Roentgenroehren

Phantom für ein zahnärztliches Panorama-Röntgengerät.

Positionsvorrichtung für ein Panorama-Röntgengerät

Eine Positioniervorrichtung zur Positionierung eines Patienten bei einer Aufnahme mit einem Panorama-Röntgengerät 10 mit einem zum Röntgengerät 10 richtungsfest angeordneten Halterteil 18 und einem damit verbundenen verstellbaren Positionierteil, etwa ein Aufbissteil 19 oder ein Anlageteil, weist am Halterteil 18 eine Längsführung 20 für das Positionierteil 19 auf, derart, dass das Positionierteil 19 zur Höhenverstellung längsverschieblich in dem Halterteil 18 geführt ist.

Positioniervorrichtung für ein Panorama-Röntgengerät

Positioniervorrichtung zur Positionierung eines Patienten in einem Panorama-Röntgengerät (10) mit einem zum Röntgengerät (10) richtungsfest angeordnetem Halterteil (18) und einem damit verbundenen verstellbaren Positionierteil (19, 29), wobei das Halterteil (18) eine Längsführung (20) für das Positionierteil (19, 29) zur Höhenverstellung des Positionierteils (19, 29) gegenüber dem Halterteil (18) aufweist, dadurch gekennzeichnet, dass in dem Positionierteil (19, 29) Rastungen für eine Arretierung in der Längsführung (20) in vorgegebenen Standardhöhen für verschiedene Aufnahmearten vorgesehen sind, wobei das Halterteil (18) einen Sockel (21) zur Befestigung an einem Träger (15) des Röntgengeräts (10) aufweist und dass die Längsführung (20) zu dem Sockel (21) axial beabstandet ist.

Method for irradiation of material in object containing materials with extremely different absorption properties by controlling projection position of irradiating beam

When the object is the mouth of a patient and X-ray images of a tooth are being taken the presence of metal fillings in adjacent teeth intersecting the X-ray beam is undesirable. To avoid this the patent describes how the X-ray projector and camera can be positioned relative to the jaw to avoid this depending on the type of investigation in hand.

EINRICHTUNG ZUM HERSTELLEN VON ZAHNAERZTLICHEN ROENTGENAUFNAHMEN

ZAHNAERZTLICHE ROENTGENDIAGNOSTIKEINRICHTUNG

Verfahren und Vorrichtung zur dentalen Bildgebung

Die vorliegende Erfindung betrifft ein Verfahren zur dentalen Bildgebung. Diese umfasst das Bereitstellen eines Bilddatensatzes mindestens eines maxillofacialen Bildbereichs, und das Erstellen einer Darstellung des mindestens eines maxillofacialen Bildbereichs aus dem Bilddatensatz, wobei in die Darstellung Informationen zur Qualität der der Darstellung zugrundeliegenden Bilddaten eingefügt werden.

A METHOD TO BE USED IN PANORAMIC X-RAY PHOTOGRAPHY AND AN APPARATUS FOR CARRYING OUT THE METHOD

VERFAHREN ZUR ERSTELLUNG UND WIEDERGABE EINES SCHICHTBILDES EINES OBJEKTS AUF EINER RÖNTGENSCHICHTAUFNAHME

VERFAHREN ZUR BILDERZEUGUNG BEI DER DIGITALEN DENTALEN RADIOGRAPHIE

Sleeve for manufacturing e.g. drilling templates, has break section or shortening marks, where sleeve is separated at break section or shortening marks as individual sleeve parts that are used as drilling sleeves

The sleeve (1) has a break section (2) or shortening marks, where the sleeve is formed such that the sleeve is utilized as a bearing sleeve (3) in a complete state. The sleeve is separated at the break section or the shortening marks as individual sleeve parts (4) that are used as drilling sleeves (5). The break section is formed by reducing the wall thickness or forming perforations on the sleeve wall. The sleeve is made of titanium, where the sleeve is filled with fill material i.e. gadopentetat-dimeglumine, that is viewable by an imaging method. The imaging method comprises magnetic resonance tomography method, computer tomography method, and digital volume tomography. Independent claims are also included for the following: (1) a system for evaluation of implant locations (2) a method for usage of a sleeve (3) a method for evaluation of implant locations.

Röntgengerät

Ein Röntgengerät (1), insbesondere ein zahnärztliches Röntgengerät, mit einer Röntgenstrahlungsquelle (10) zum Erzeugen einer auf ein zu untersuchendes Objekt (20) zu richtenden Röntgenstrahlung (R) weist eine optische Vorrichtung (12) auf, über welche eine Zieleinrichtung, beispielsweise eine von einer weiteren Lichtquelle (11) erzeugte zusätzliche sichtbare Pilotstrahlung (P), im wesentlichen parallel zu der Röntgenstrahlung (R) auf das zu untersuchende Objekt (20) ausgerichtet ist. Die Positionierung des Röntgenkopfes (2) wird hierdurch erleichtert.

Verfahren und Anordnung zum medizinischen Röntgen

Verfahren zur Herstellung von dreidimensionalen Informationen eines Objektes (4) beim medizinischen Röntgen, dadurch gekennzeichnet, daß - das Objekt mathematisch unabhängig vom Röntgen modelliert wird, - das Objekt von wenigstens zwei unterschiedlichen Richtungen geröntgt wird und die Röntgenstrahlung erfaßt wird, um Projektionsdaten des Objektes (4) zu bilden, - und die Projektionsdaten und die mathematische Modellierung des Objektes in einer Bayes'schen Inversion basierend auf der Formel von Bayes genutzt wird, um dreidimensionale Informationen des Objektes zu erzeugen, wobei die Erstverteilung ppr(x) die mathematische Modellierung des Objektes repräsentiert, x den Objektbildvektor repräsentiert, welcher Werte des Dämpfungskoeffizienten der Röntgenstrahlen im Inneren des Objektes umfaßt, m die Projektionsdaten repräsentiert, die Wahrscheinlichkeitsverteilung p(m|x) das Röntgenstrahlendämpfungsmodell zwischen dem Objektbildvektor x und den Projektionsdaten m repräsentiert, p(m) eine Normalisierungskonstante ...

Digital panorama X-ray machine esp for dental diagnosis

A digital panorma X-ray machine has an image processor to produce a tomographic image in a selected plane based on image data input into a store during machine operation. The store has four full image storage devices. Two of these store tomographic images obtained in different planes. The third stores a converted image which is an image in the first plane produced by conversion of the second image by the processor. The fourth stores a panorma image obtained by subtracting the converted image in the third storage device from the image in the first storage device.

AUTOMATISCHE ERKENNUNG VON RÖNTGENSTRAHLUNG FÜR INTERORALES DENTALES RÖNTGENBILDAUFNAHMEGERÄT

Zahnaerztlich-roentgenologischer Markierungs- und selbsttaetiger Einstellzirkel

VERFAHREN ZUR BILDGEBUNG DES KOPFBEREICHES

DENTALPANORAMAROENTGENVORRICHTUNG

DENTAL EQUIPMENT FOR INTRAORAL DETECTION OF X-RAYS

Verfahren der dreidimensionalen Dental-Panoramaradiographie und Vorrichtung zur Vermeidung der Durchstraahlung der Wirbelsäule des Patienten

Method and device for determination of the position and preoperative alignment of intraossal implants in the jaw bone and for drilling the holes for the implants

Published without abstract.

Zahnärztliche Röntgendiagnostikeinrichtung

In a dental X-ray diagnostic device comprising an X-ray source, an image detector (7) arranged diametrically thereto and behind the object to be irradiated in the beam direction, an electronic control system (9) with a control section (10) to control the image detector, an image processing unit (11) which prepares the signals obtained from the image detector, and an operating device for switching on or off the X-ray source, the invention proposes that the image detector (7) be continuously read out by means of a beat generator (10), the incoming values being continuously subjected to a threshold test, whereby, when the X-ray source is switched off, the image detector is run in read-out mode, and, in the presence of radiation and if a given threshold is exceeded, it is switched to exposure mode and vice versa.

Dentales Röntgengerät und damit verwendetes Signalbearbeitungsverfahren

COMBINATION RADIOGRAPHIC APPARATUS

... 1345177 X-ray apparatus M MOSS 19 April 1971 [27 April 1970] 26926/71 Heading H5R Apparatus suitable for taking panoramic, intra-oral occlusal and cephalometric radiographs of the head, jawbone, and teeth includes an X-ray source and a film holder coupled to one another for rotation about a patient positioned therebetween, and interchangeable means permitting movement, with respect to the patient, of the pivot point of the rotation. The radiographic apparatus is mounted on, and is vertically adjustable with respect to, an upright column 14 by means of a counterweighted support member 22, to which a hinged arm 26 supporting a head positioner 24 and an adjustable cassette holder 36 is also attached, the column 14 being itself horizontally adjustable along a base 12 by use of a control lever 41. The rotatable anode X-ray tube 16 and film holder 18 are mounted at opposite ends of a member 54 which also carries a motor 51 which, by driving a friction wheel 78 resting on a centrally apertured ...

Mehtod of obtaining images of a sample using a oblique-view cone-beam CT system

Oral care device

An oral care device comprises a head portion and a handle portion. The head portion comprises at least one supporting arm and a base. The supporting arm extends from the base. A sensor is exposed from the supporting arm. The handle portion is configured to move relative to the head portion. The handle portion comprises a processor, wherein the processor is configured to receive signals from the sensor and analyze the signals received from the sensor.

Dental X-ray apparatus

Intra-oral dental X-ray apparatus for panoramic dental radiography comprises an electron gun 92 having an elongated tubular target carrier 100 extending therefrom for positioning in the patient's mouth. The carrier 100 supports an inclined target 91 for direction of an X-ray pattern towards a film 95 positioned externally of the patient's mouth. Image definition is improved by a focussing anode 37 which focuses the electron beam 93 into a sharp spot (0.05 to 0.10 mm diameter) on the target 91. The potential on focussing anode 37 is adjustable to vary the size of the spot. An X-ray transmitting ceramic (oxides of Be, Al and Si) window 101 is positioned adjacent the front face of the target. The electron beam can be magnetically deflected to change the X-ray beam direction, Figures 4 and 5. ...

X-RAY APPARATUS

... 1486991 Panoramic radiography PENNWALT CORP 2 Jan 1975 [2 Jan 1974] 78/75 Heading H5R A panoramic radiographic apparatus, e.g. for radiographing the dental arch or the skull, comprises a source 44 of penetrating radiation mounted opposite a film holder 45 these being mounted on an annulus 42 for rotation about an object to be radiographed, the film holder 45 having an exposure slit 144, Fig. 15, past which a film is advanced while the rotation takes place and means being provided to shift the centre of rotation of annulus 42 during the course of an exposure by a variable amount. The emission of X-rays is stopped while the centre of rotation is shifted. In Fig. 2, the shift is provided by pivoting a gimbal frame 50 carrying the annulus 42 and its drive motor 63 about pin 51c (at the lower end) by means of an hydraulic cylinder 70 the stroke of which can be selected to provide the required shift by moving right and left limit switches which are actuated by the movement of the frame 50. Fig ...

Systems & methods for oral inspection

A dentine-enamel boundary detection system for an oral inspection device comprising a light emission module 10 configured to emit light to irradiate an oral region of interest, two optical filters having different respective passbands, each of the two filters arranged to filter a portion of fluorescence emitted from oral structures in the oral region of interest to pass filtered fluorescence. A sensor module 30 configured to detect the filtered fluorescence and output corresponding sensor data. The system further comprises a processor module 40a configured to identify the presence of a dentine-enamel boundary in the oral region of interest by processing the sensor data output by the sensor module. The sensor module comprises a single photon avalanche photodiode. A corresponding oral inspection or treatment device and method are also provided. The oral inspection or treatment device may be a dental cleaning appliance with a body and a cleaning tool head.

PROCEDURE AND DEVICE FOR THE PROCESSING OF DENTALBILDERN

A DENTALEN SENSOR ARRANGEMENT CONCERNED

ARRANGEMENT FOR THE TREATMENT OF AN POLYMERIZATION-ABLE MATERIAL

PROCEDURE FOR THE PRODUCTION OF A DIGITAL PICTURE NEGATIVES KIEFERABDRUCKS

COMBINED X-RAY UNIT FOR PANORAMA, CTUND CEPHALOMETRIE PHOTOGRAPHS

EQUIPMENT FOR THE SELECTION OF EXPOSURE MEMORY FOILS

PROCEDURE AND DEVICE FOR THE RELEASE OF AN IMAGE SENSOR FOR X-RAY

DENTALES AND ORTHOPEDIC DENSITOMETRIEMODELLSYSTEM

FLEXIBLE INTRAORALE RADIOGRAPH GIVING MECHANISM

INSTALLATION OF A ROENTGEN RECEIVER

VERFAHREN UND VORRICHTUNG FÜR COMPUTERISIERTE TOMOGRAPHIE- UND PANORAMA ABTASTUNGEN

DEVICE AND PROCEDURE FOR REPRODUCIBLE POSITIONING OF REFERENCE MARKS AT A HUMAN HEAD.

EQUIPMENT FOR THE ADMISSION OF DENTALROENTGENBILDERN AND IN PARTICULAR IN THE ORAL CAVITY ARRANGED SENSOR.

MANUFACTURING METHOD OF A DEVICE FOR KIEFERKNOCHENVERANKERTEN HEAD POSITIONING.

EQUIPMENT FOR ORTHORADIALE PANORAMA TOMOGRAPHY.

VERFAHREN UND EINRICHTUNG ZUR FESTLEGUNG DER POSITION DENTALER IMPLANTATE

Die Erfindung betrifft ein Verfahren und eine Einrichtung zur Auswahl der Position, des Typs bzw. der Präparationstechnik dentaler Implantate, welche bereits vor der Implantation eine Aussage über die optimale Position der Implantate, den optimalen Implantattyp und eine geeignete Präparationstechnik hinsichtlich Primärstabilität und Langzeiterfolg geben kann. Erfindungsgemäß ist vorgesehen, dass vor der Implantation von Bidlaufnahmeeinheiten stammenden Bilddaten in an sich bekannter Weise in Knochendichtewerte umgewandelt und grafisch dargestellt werden, und für eine ausgewählte Implantatposition aus den Knochendichtewerten zur Quantifizierung der zu erwartenden Primärstabilität auf die zu erwartenden Drehmomente beim Einsetzen der Implantate bezogene Werte aufgrund vom empirischen Daten ermittelt werden, und die Knochendichtewerte und die zugehörigen Drehmoment-Werte für die ausgewählte Implantatposition dargestellt werden. Dazu ist erfindungsgemäß eine Bildaufnahmeeinheit (1), eine damit ...

DENTAL ROENTGEN DIAGNOSTICS MECHANISM FOR THE PRODUCTION OF PANORAMA RADIOGRAPHS OF THE HEAD OF A PATIENT

OWNER FOR DIGITAL SENSORS FOR DENTISTRY

ROENTGEN DIAGNOSTICS MECHANISM WITH A POSITIONING DEVICE FOR STRAHLENSENDER AND A RADIATION RECEIVER

TOOTH IDENTIFICATION ON DIGITAL RADIOGRAPHS AND ALLOCATION FROM INFORMATION TO DIGITAL RADIOGRAPHS

DEVICE FOR THE DEVELOPMENT OF A TOOTH RADIOGRAPHIC FILM

PORTABLE ROENTGEN DETECTOR

Method for web-based data transfer for a dental or dental-surgical treatment or diagnosis system and such a treatment or diagnosis system

A method is described for transferring at least one data set between a dental or 5 dental-surgical treatment or diagnosis device and an external memory element located outside the dental or dental-surgical treatment or diagnosis device, wherein the at least one data set is transferred in a web-based manner via the Internet and a cloud computing network comprising the external memory element. A corresponding dental or dental-surgical treatment or diagnosis system comprises a 10 dental or dental-surgical treatment or diagnosis device and a transmitting and receiving device for communicatively connecting to a remote-control human-machine interface. The transmitting and receiving device is designed for providing a web-based connection via the Internet and a cloud computing network to the remote-control human-machine interface. ill ft 'I ~ ¾~ II ~~'1 'I '1 ________________ Vt ~iiTht ((c ¶1W~ EiTht (0 (I, I' H m (N (N ...

Automatic alignment and orientation of digital 3D dental arch pairs

A method for aligning digital 3D models of dental arch pairs, including a mandible and maxilla, to bring them into bite alignment. The method estimates representative planes for the mandible and maxilla 3D models and transforms the models such that the representative planes are each aligned with their respective coordinate systems and shown in a horizontal view. The method also transforms the models such that the mandible and maxilla are each aligned with a same coordinate system and shown in a front view. The digital 3D models are then brought into bite alignment such that the mandible is in occlusion with the maxilla or within a distance near to occlusion. The digital models of the bite-aligned arch pairs can also be transformed or rotated to be shown centered in a front view.

APPARATUS FOR ORTHORADIAL PANORAMIC TOMOGRAPHY

Filmless dental radiography system using universal serial bus port

Method for cleaning the oral cavity

A method for cleaning an oral cavity by positioning a device suitable for detecting and removing plaque from a surface within the oral cavity having applied thereto a fluorescent agent capable of binding to plaque on the surface, substantially simultaneously cleaning and irradiating the surface with a light of a wavelength effective to provide a fluorescent emission when contacted with the fluorescent agent, collecting at least a portion of the fluorescent emission over a predetermined first time period (PTP1), determining an average plaque value (APV) based on the fluorescent emission collected over the PTP1, comparing the APV to a predetermined plaque value (PPV), and continuing to substantially simultaneously clean and irradiate the surface within the oral cavity for a predetermined second time period (PTP2).

Intraoral Radiographic Imaging Sensors With Minimized Mesial Imaging Dead Space

An intraoral radiological imaging sensor eliminates dead space at its mesial side by moving imaging chip control electronics to its distal side and/or locating the imaging chip control electronics within an active pixel array whether done by sacrifice of active imaging area within a pixel or by depositing the imaging chip control electronics in a separate layer underneath the imaging are of the imaging chip. (Prior Art) FS ...

RADIOGRAPHY OF DENTAL, JAW AND SKULL REGIONS

A radiation imaging system and scanning device

Intra-oral scanning device with illumination frames interspersed with image frames

An intra-oral scanning device includes a light source and an optical system, and communicates with a display system. The device captures images of an object of interest, e.g., patient teeth or associated anatomy, by projecting the light source as a first series of frames, and a second series of frames. The first series of frames projects first pattern data, and the second series of frames projects second data. The second series of frames are interleaved between frames in the first series of frames. The frames in the first series are partially-illuminated and are used to capture data for a 3D model. The frames in the second series are preferably fully- illuminated and are used to generate a live preview of the object. By displaying the live preview frames in juxtaposition to the 3D model, the operator is provided with visual feedback of the object.

Portable fixing device for oral dental photography

This invention discloses portable fixing device for oral dental photography that relates to the technical field of medical equipment. The invention comprises tooth clamping bracket, connecting rod and oral occlusal pad, wherein the tooth clamping bracket body is a U-shaped bracket body with smooth transition corners and recessed groove at the bottom. Two clamping plates are arranged on the inner sides of brackets at two sides of the U-shaped bracket body, tooth clamping groove is formed between the clamping plates, the connecting plate is arranged on the U-shaped bracket body that connects with bracket universal joint arranged at one end of the connecting rod.The middle end of the connecting rod is a coupling rod, and the other end of the connecting rod connects oral occlusal pad universal joint and oral occlusal pad. The oral occlusal pad is provided with base and occlusal end. The portable fixing device for oral dental photography provided by this invention is efficient for photograph ...

IMAGE CAPTURE DEVICE AND METHODS

A novel image capture device (80), system and method are disclosed for use in capturing dental images. One or more devices are integrated within one or more components of the system. Examples of such devices include a wireless transmitter (20), a wireless receiver (304), a camera (22), a frame grabber (24), a beeper (286), indicator light (88) system, or a transilluminator light (28). A novel collimator tube (81) insert includes one or more integrated devices. A novel receptor holder (82) includes a docking port (68) for docking a sensor (64) that is used for digital x-ray capture. A novel receptor holder includes multiple arms (264) to allow a holder bar (56) to be positioned in multiple positions for capturing different image types. A novel receptor holder includes a measurement guide (297) for measuring a distance from which an image was taken from a patient. A novel alignment ring includes a sensor port and/ or a wireless transmitter for transmitting data to other devices.

METHOD AND APPARATUS USING INFRARED PHOTOTHERMAL RADIOMETRY (PTR) AND MODULATED LASER LUMINESCENCE (LUM) FOR DIAGNOSTICS OF DEFECTS IN TEETH

There is provided a high-spatial-resolution dynamic diagnostic instrument which can provide simultaneous measurements of laser-induced frequency-domain infrared photothermal radiometric and alternating-current (ac) modulated luminescence signals from defects, demineralization, remineralization and caries in teeth intraorally. The emphasis is on the abilities of this instrument to approach important problems such as the detection, diagnosis and ongoing monitoring of carious lesions and or defects on the occlusal pits and fissures, smooth surfaces and interproximal areas between teeth which normally go undetected by x-ray radiographs or visual examination. The instrument is also able to detect early areas of demineralized tooth and or areas of remineralized tooth as well as defects along the margins of restorations. This capability of inspecting a local spot can be extended to a modulated imaging of sub-surface of target tooth by using a multi-array infrared camera. Two configurations of ...

X-RAY SOURCE MOVING MECHANISM SUITABLE FOR PANORAMIC RADIOGRAPHY

POSITIONING APPARATUS FOR DENTAL X-RAY PROCEDURES

A dental bite block (20) and sensor holder (21) assembly (11) has a bite block (20) configured (31) to detachably affix to a sensor holder (21). Affixing surfaces (30, 31) are provided between the bite block (20) and the sensor holder (21) such that the sensor holder (21) is removably affixed to the bite block (20). An alternative guide arm (100) has more than one attachment site (101a, 101b) for removably affixing a sensor holder (102, 103, 104) to the guide arm (100).

COUNTERBALANCING MECHANISM FOR X-RAY TUBEHEADS

... - i An X-ray tubehead counterbalancing mechanism devoid of springs, cams and chains is disclosed. The mechanism requires only a single adjustment to precisely counterbalance objects, such as tubeheads and the like. The mechanism includes a commercially available gas spring which is used in conjunction with parallel motion linkage assembly which carries the tubehead. The piston rod end of the gas spring is adjustable upwardly or downwardly in a direction substantially normal to the axis of the piston rod by means of a single adjustment screw cooperation with a clevis which pivotally mounts the piston rod. With such adjustment capability, the present mechanism will support and counterbalance tubeheads having wide variations in weight and inertia.

System, Device and Method for Determining Dental Erosion

A system for determining dental erosion by measuring the translucency of a tooth at the same location of the tooth at least two points in time during the lifetime of a person or an animal, said system comprising a device provided with a carrier on which a light source and a light sensor are mounted, which carrier can be placed against a tooth or a molar, preferably against the cutting edge thereof, and which system further comprises electronic processing means, which are designed to convert the signal from the light sensor into a quantitative value, means which are designed to store a first determined value from the sensor, means which are designed to compare a second determined value from the sensor with the first determined value, and means which are designed to communicate a representative of the result of the comparison to a user. 1. A system for determining dental erosion by measuring the translucency of a tooth at the same location of the tooth at at least two points in time during the lifetime of a person or an animal , said system comprising a device provided with a carrier on which a light source and a light sensor are mounted , which carrier can be placed against a tooth or a molar , preferably against the cutting edge thereof , and which system further comprises:electronic processing means for converting the signal from the light sensor into a quantitative value;means for storing a first determined value from the sensor;means for comparing a second determined value from the sensor with the first determined value; andmeans for communicating a representative of the result of the comparison to a user.2. A system according to claim 1 , wherein the light source and the light sensor are directed towards each other claim 1 , such that the carrier can be placed against a tooth or a molar whilst the tooth or the molar is present between the light source and the light sensor.3. A system according to claim 2 , wherein the carrier is provided with a linear stop claim ...

Dental x-ray aiming device with marginal ridge indexing

The present invention is a device for aiming a dental x-ray beam to be centered parallel to the area of contact between two adjacent teeth so that the resultant bite wing radiographic image is one that shows at least those two teeth as distinct and not superimposed images. The device, comprising a marginal ridge angulation locator that indexes into the substantially v-shaped groove on the biting surfaces between two adjacent teeth, locates and indicates an aiming vector centered over and parallel to the area of contact between those two teeth for the purpose of aiming an x-ray beam then exposing the radiographic image desired.

Dental Posts

The present invention pertains to the technical field of dental restorations, especially dental posts. One aspect of the present invention is a radio-opaque coated dental post. The post essentially consists of a core embedded in a thermoplastic or duroplastic material. The core is further coated with yet another resin with at least one radio-opaque additive. X-ray visibility especially at the outer margin of the post is significantly improved. 1. A radio-opaque , multi-layered dental post comprising:a core with a first material, anda coating of a second material on said core, wherein said coating comprises at least one radio-opaque additive.2. The dental post of claim 1 , wherein the first material and the second material are thermoplastic or duroplastic.3. The dental post of claim 1 , wherein said core with said first material is made from a fibrous material which is embedded in or impregnated with said first material.4. The dental post of claim 3 , wherein the fibrous material is long fibers.5. The dental post of claim 3 , wherein the fibrous material essentially extends over the whole length of the core.6. The dental post of claim 3 , wherein the fibrous material is embedded in the first material of the core.7. The dental post of claim 1 , wherein the first material comprises at least one radio-opaque additive.8. The dental post according to claim 7 , wherein the radio-opaque additive of at least one of said first or second material is at least one metal oxide.9. The dental post according to claim 7 , wherein the radio opaque additive is a metal fluoride.10. The dental post of claim 1 , with the following dimensions:a length in the range of about 5 mm to about 40 mm;a maximum cross-sectional diameter in the range of about 0.5 mm to about 3 mm.11. The dental post according to claim 1 , wherein the dental post is made up of a head and a body section claim 1 , each section having a different layer thickness of the first material and the second material.12. The ...

Dental imaging using segmentation and an arch

A method and a system for generating an image by obtaining x-ray image data, segmenting the x-ray image data into a first portion above a vertical threshold and a second portion below the vertical threshold. Further, the method and the system include generating an arch for the second plurality of slices, and generating an image based on the arch.

AQUEOUS COMPOSITION SUITABLE FOR INTRA-ORAL SCANNING METHODS

Presently described are methods of intra-oral scanning and an aqueous dental compositions suitable for use for scanning comprising an aqueous solution of a polymer, wherein the solution increases in viscosity from ambient temperature to body temperature; and diffuse reflective particles having an average particle size of at least about 1 micron. 1. A method of intra-oral scanning comprising: an aqueous solution of a polymer, wherein the solution increases in viscosity from the application temperature to body temperature; and', 'diffuse reflective particles;, 'applying a coating of an dental composition to an intra-oral surface or model thereof wherein the dental composition comprises'}scanning the coated surface to form a three dimensional representation of the intra-oral surface.2. The method of wherein the application temperature ranges from 10° C. to 25° C.3. The method of wherein the aqueous solution has a viscosity of less than 1000 cps at the application temperature.4. The method of wherein the aqueous solution increases in viscosity by a factor of 2× to about 10×.5. The method of wherein the polymer is a polyoxyalkylene polymer.6. The method of wherein the polymer is present in the dental composition at a concentration ranging from about 10 wt-% to about 25 wt-% of the aqueous dental composition.7. The method of wherein the diffuse reflective particles have an average particle size of at least about 1 micron.8. The method of wherein the particles comprise agglomerates of smaller particles having a particles size less than 1 micron.9. The method of wherein the agglomerates have an average particles size of 5 to 30 microns.10. The method of wherein the smaller particles are bonded into agglomerates with a binder.11. The method of wherein the binder is water insoluble at temperatures below 40° C.12. The method of wherein the binder is selected from the group consisting of polyvinyl alcohols claim 10 , cellulose ethers claim 10 , polyoxyalkylene polymers claim 10 ...

Impression Device and Method for Three-Dimensional Acquisition of Intraoral Structures, and Corresponding Scanning Device

The invention relates to an impression device and a method for three-dimensional acquisition of intraoral structures as well as a corresponding scanning device. The impression device of the invention comprises an impression sleeve, which has an open and a closed end, and at least one marker which is three-dimensional and disposed on the outside of the impression sleeve. 1. An impression device for three-dimensional acquisition of intraoral structures , having an impression element which can be placed on a tooth or a tooth stump in order to take an impression of the tooth or tooth stump , and at least one marker which is disposed on the impression element in a manner such that the position and the orientation of the impression element placed on the tooth or on the tooth stump can be determined by means of an intraoral scan , wherein the impression device comprises at least one referencing marker or can be connected to at least one referencing marker which is arranged such that it can be scanned together with the impression in an extraoral scan.2. The impression device as claimed in claim 1 , wherein the impression element comprises a sleeve to accommodate an impression material claim 1 , having an open and a closed end claim 1 , wherein the marker is disposed at the closed end.3. The impression device as claimed in claim 1 , wherein the marker has one or more of the characteristics selected from a group consisting of an at least partially spherical or pyramidal in shape claim 1 , an at least partially planar lateral flat claim 1 , a hemispherical element claim 1 , and two spheres arranged one above the other claim 1 , wherein at least one of the spheres has at least one flat.4. The impression device as claimed in claim 2 , wherein the marker is connected with the impression sleeve via a connecting element claim 2 , wherein the connecting element extends from the closed end of the impression sleeve.5. The impression device as claimed in claim 4 , wherein the ...

PANORAMIC DENTAL X-RAY UNIT

A panoramic dental x-ray unit. The unit includes a support rotating about an axis and carrying, in the opposite position, an x-ray source and detector which move following a predetermined trajectory. The unit further includes means for acquiring images of the dental arch of a patient corresponding to the positions of the detector and of the source with respect to the dental arch. There is also provided means for reconstruction of a two portions of a panoramic image corresponding respectively to two disconnected portions of the dental arch, the reconstruction being performed from certain acquired images which each contain at least one piece of information concerning the two disconnected portions of the dental arch. 1. A panoramic dental x-ray device , comprising: an x-ray source installed at one end of the support and in front of which is placed a vertical collimation slot so as to produce an elongated X-ray beam;', 'an x-ray detector of elongated shape, installed at an end opposite of the support, placed towards the source and intended to receive the X-rays having traversed the dental arch of a patient placed between the source and the detector;', 'means for control of the support movement so that the source and the detector follow a predetermined trajectory;', 'means for acquiring a plurality of images of the dental arch of a patient corresponding to a plurality of positions of the detector and of the source with respect to the dental arch; and', "means for reconstruction of a panoramic image of at least one portion of the patient's dental arch, from the plurality of images;", 'wherein the means for reconstruction of the panoramic image comprises means to reconstruct two portions of the image corresponding respectively to two disconnected portions of the dental arch from at least some of the acquired images which each contain at least one piece of information concerning the two disconnected portions of the dental arch., 'a support able to rotate about an axis;'}2. ...

Intraoral Radiographic Imaging Sensors with Minimized Mesial Imaging Dead Space

An intraoral radiological imaging sensor eliminates dead space at its mesial side by moving imaging chip control electronics to its distal side and/or locating the imaging chip control electronics within an active pixel array whether done by sacrifice of active imaging area within a pixel or by depositing the imaging chip control electronics in a separate layer underneath the imaging are of the imaging chip. 1. An intraoral radiological imaging sensor , comprising:an electronics substrate and an imaging chip held within a housing, said imaging chip having electronics that create a dead space; anda cable attached to the housing at a cable button connector;wherein the sensor has a generally rectangular shape with a mesial side toward which the cable exits the cable button connector and a distal side opposite which the cable exits the cable button connector; andwherein a majority of the dead space is created in the distal side of the sensor.2. The intraoral radiological imaging sensor of claim 1 , wherein the mesial side of the sensor does not have a second dead space created by electronics of the imaging chip.3. The intraoral radiological imaging sensor of claim 1 , wherein substantially all of the dead space is created in the distal side of the sensor.4. The intraoral radiological imaging sensor of claim 1 , wherein the sensor has a mesial side dead space of approximately 2 mm or less.5. The intraoral radiological imaging sensor of claim 1 , wherein the cable is a flat cable.6. The intraoral radiological imaging sensor of claim 5 , wherein the cable button connector is mounted to a cable side of the housing more distant to the mesial side than to the distal side.7. An intraoral radiological imaging sensor claim 5 , comprising an imaging chip held within a housing claim 5 , said imaging chip being substantially free of a dead space due to any imaging chip control electronics outside of an active pixel array.8. The intraoral radiological imaging sensor of wherein a ...

SOFT BODY AUTOMATIC REGISTRATION AND SURGICAL MONITORING SYSTEM

A surgical hardware and software monitoring system and method allows for surgical planning while the patient is available for surgery, for example while the patient is being prepared for surgery so that the system may model the surgical site. In one embodiment, the model may be used to track contemplated surgical procedures and warn the physician regarding possible boundary violations that would indicate an inappropriate location in a surgical procedure. In another embodiment, the monitoring system may track the movement of instruments during the procedure and in reference to the model to enhance observation of the procedure. In a further embodiment the monitoring system can be used to model and track the changes in the surgical site itself. 1. A system for monitoring a surgical site , comprising: a predetermined radio opaque marker pattern structured and arranged to affix to a portion of a body proximate to a surgical site; a tracker capable of observing the surgical site , and a computing device coupled to said tracker and adapted to receive observation data from said tracker , said computing device having a processor and memory storing software that when executed by said processor enables said processor to recognize the pattern and calculate a model of the surgical sited based on the identity of the pattern and changes in shape of the pattern based on the observation data received from said tracker.2. The surgical monitoring system of wherein the marker pattern is configured in at least one of marked and shaped for having at least one of its location and its orientation determined from the scan data.3. The surgical monitoring system of wherein the marker pattern is configured in at least one of marked and shaped to allow the marker pattern to be uniquely identified from the scan data.4. The surgical monitoring system of further comprising a tracking marker in fixed three-dimensional spatial relationship with the marker pattern claim 1 , wherein the tracking ...

Surgical location monitoring system and method using skin applied fiducial reference

The present invention involves a surgical monitoring system and method for modeling surgical procedures. A multi-element fiducial reference pattern observable by a tracker may be transferred directly to the skin proximate the surgical site, either through a stencil as a radio-opaque ink pattern or via transfer tape, or may be applied in prepared form on a surgical incise film. Alternatively the surgical incise film may be applied over the surgical site and the inked reference pattern applied to the film before surgery. A controller determines the three-dimensional location and orientation of the surgical site by comparing the position and orientation of the reference pattern in a prior scan with the position and orientation of the reference pattern in image information about the surgical site obtained from the tracker. The system may track the movement of instruments relative to the surgical site, or may be used to track changes in the surgical site itself.

HANDPIECE WITH INTEGRATED OPTICAL SYSTEM FOR PHOTOTHERMAL RADIOMETRY AND LUMINESCENCE MEASUREMENTS

An apparatus is provided for performing photothermal measurements on a object. The apparatus, which may be provided as a handpiece, houses optical components including a laser, an infrared detector, a dichroic beamsplitter, and focusing and beam directing optics for the delivery of a laser beam to, and the collection of photothermal radiation from, a measured object. Some of the optical components may be provided on an optical bench that is directly attached to a thermally conductive tip portion for the passive heat sinking of internal optical components. The apparatus may further include a sampling optical element and a photodetector for the detection of luminescence, and a camera for obtaining an image of the object during a diagnostic procedure. The apparatus may be employed for the scanning of a tooth to determine an oral health status of the tooth. 1. An apparatus for detecting photothermal radiation from an object , said apparatus comprising:an elongate housing;a laser for producing a laser beam within said housing;a focusing element positioned to focus said laser beam through an aperture at a distal portion of said housing and onto a surface of said object, and to collect photothermal radiation generated within said object in response to said laser beam; anda dichroic beamsplitter positioned within said housing to spatially separate said photothermal radiation from said laser beam; andan infrared detector provided within said housing for detecting said photothermal radiation.2. The apparatus according to wherein a propagation axis of said laser beam within said housing is substantially colinear to a propagation axis of said photothermal radiation within said housing over a portion of a beam path of said laser beam.3. The apparatus according to wherein said laser beam comprises a wavelength suitable for generating luminescence radiation within said object claim 1 , and wherein said focusing element is configured to collect said luminescence radiation in ...

DENTAL X-RAY DEVICE WITH IMAGING UNIT FOR SURFACE DETECTION AND METHOD FOR GENERATING A RADIOGRAPH OF A PATIENT

The invention relates to a dental X-ray system for the creation of a radiograph (), comprising an imaging unit () for surface detection. The imaging unit () has a light source (), which produces a polychromatic beam of visible light (′), a masking edge (), which extends at least partially into the polychromatic beam of light (′) between the light source () and the recording area () for the purpose of creating a shadow demarcation line () in said recording area (), and an optical detector (), wherein the light source (), the masking edge () and the optical detector () are mounted directly on the supporting device () and/or on the X-ray source () and/or on the X-ray detector () and can be moved together therewith past the recording area () in circular motion. 1. A dental X-ray system for generating a radiograph of a patient , comprising:an X-ray source and an X-ray detector, each of which is disposed on a supporting device and can, by means of said supporting device be moved at least partially around a recording area located between said X-ray source and said X-ray detector; and at least one light source that produces a polychromatic bundle of visible light directed toward said recording area,', 'at least one masking edge that extends, at least partially, into the polychromatic beam of light between said light source and said recording area for creation of a shadow demarcation line in the recording area, and', 'at least one optical detector,', 'wherein the at least one light source, the at least one masking edge and the at least one optical detector are disposed directly on said supporting device and/or on said X-ray source and/or on said X-ray detector and can be moved, together with said X-ray source and said X-ray detector around said recording area, and', 'wherein positions of the at least one light source, the at least one edge and the at least one optical detector in relation to each other are known., 'at least one imaging unit for surface detection of a patient ...

X-RAY CT IMAGING DEVICE

The present invention has an object of providing an X-ray CT imaging device which can direct X-ray to an area of interest appropriately even when, for example, the height of the area of interest with respect to the X-ray detector, which is revolving, varies with respect to the revolution direction, and thus can reduce the amount of unnecessary exposure to the X-ray and can perform X-ray imaging of the area of interest with certainty. In an X-ray CT imaging device for performing X-ray CT imaging of a CT imaging area of a subject, during the X-ray CT imaging when a revolving arm is revolving, the expansion in a length direction of an X-ray cone beam, which is to be restricted by length direction blocking plates, is adapted to the shape of the CT imaging area in accordance with the revolution position of the revolving arm. 1. An X-ray CT imaging device for performing X-ray CT imaging of a CT imaging area of a subject , the X-ray CT imaging device comprising:an imaging mechanism including an X-ray generator for generating X-ray, an X-ray restriction section for blocking and restricting a radiation range of the X-ray generated by the X-ray generator to form an X-ray cone beam to be directed to the CT imaging area, and an X-ray detector for detecting the X-ray cone beam directed to the subject;a support for supporting the X-ray generator and the X-ray detector in the state where the X-ray generator and the X-ray detector have the subject therebetween;an imaging mechanism driving section for revolving the support at least about an axis of a revolution shaft with respect to the subject; anda control section for controlling at least the X-ray generator, the X-ray restriction section and the imaging mechanism driving section;wherein:a direction parallel to a direction of the axis of the revolution shaft is a length direction; and a length direction X-ray blocking section for blocking and restricting the radiation range of the X-ray cone beam in the length direction with ...

APPARATUS AND METHOD FOR ACQUIRING PANORAMIC, TELERADIOGRAPHIC AND OPTIONALLY VOLUMETRIC CBCT RADIOGRAPHIES

Apparatus and method for acquiring panoramic, teleradiographic and optionally CBCT volumetric dental radiographies, comprising a support holding a rotary arm which in its turn supports at one end a first X-ray source and at the other end an X-ray detector at a suitable distance for acquiring panoramic and optionally CBCT volumetric images. Apparatus comprises only one patient positioning system and a second X-ray source at a distance from detector suitable for acquiring cranial teleradiographies. 121262728. Apparatus () for acquiring panoramic , teleradiographic and optionally CBCT volumetric dental radiographies , comprising a support holding a rotary arm () which in its turn supports at one end a first X-ray source () and at the other end an X-ray detector () at a suitable distance for acquiring panoramic and optionally CBCT volumetric images ,characterized in that{'b': 25', '207', '28, 'there is only one patient positioning system (), and comprising a second X-ray source () at a distance from detector () suitable for acquiring cranial teleradiographies.'}228. Apparatus according to claim 1 , comprising only one X-ray detector ().3. Apparatus according to claim 1 , wherein the X-ray detector is an area sensor.4. Apparatus according to claim 3 , wherein the area sensor is used in PAN mode for panoramic acquisitions and in standard mode for teleradiographic and optionally CBCT volumetric acquisitions.5. Apparatus according to claim 1 , wherein the X-ray detector is a linear sensor.6. Apparatus according to claim 1 , wherein two X-ray detectors are present: one sensor for acquiring panoramic and teleradiographic images and one sensor for acquiring CBCT volumetric images claim 1 , both sensors fixed on a mechanism allowing to alternate them.727. Apparatus according to claim 1 , wherein the first X-ray source () is a rotating anode X-ray tube.8. Apparatus according to claim 1 , wherein the second X-ray source is a fixed anode X-ray tube.920328204272052620520728. ...

3D DIGITAL ENDODONTICS

A method and system are described for 3D digital endodontics characterized in that 3D imaging equipment such as a CT or MRI scanner, ultrasound or the like are used to digitize the infected tooth or teeth, a 3D representation of the root canal system is extracted from the image data and visualized on a computer screen, a surgical template is designed to guide the endodontic instruments to localize the root canal(s) intra-operatively and said guide is manufactured by means of a computer driven system (e.g. milling, rapid prototyping, etc.). 152.-. (canceled)53. A computer based method for 3D digital endodontics , 3D imaging equipment being used to digitize an image of an infected tooth or teeth to thereby form image data , the method comprising:providing a user interface to extract a 3D representation of a root canal system from the image data and to visualize the root canal system on a visual display unit, wherein the 3D representation of the root canal system is expressed in a user specified coordinate system;the user interface being adapted to enable design of a surgical template to guide endodontic instruments to localize the root canal intra-operatively based on the 3D representation of the root canal system.54. The method of claim 53 , further comprising manufacturing said template by means of a computer driven system claim 53 , wherein the computer driven system is a milling claim 53 , a rapid prototyping claim 53 , or layered manufacture system.55. The method of claim 53 , wherein digital templates of a plurality of root canal instruments are provided claim 53 , allowing 2D superimposed views of instruments and canal shapes or canal cross-sections for treatment planning and instrument selection.56. The method of claim 53 , wherein location of root canal orifices is determined by extracting the root canal system from the image data.57. The method of claim 56 , wherein the step of extracting is carried out by indicating points along the axis of the root canal ...

SURGICAL GUIDE PREPARATION TOOL AND METHOD FOR PREPARING SURGICAL GUIDE

The present invention provides an inexpensive surgical guide preparation tool by which an insertion hole for implant can be correctly and easily formed at a predetermined position. 1. A surgical guide preparation tool comprising a gauge body having a pair of marker members , wherein each of the marker members are provided with plural marks which are recognizable by a CT scanned image and disposed longitudinally and laterally at substantially regular intervals , and the gauge body is installed at a position corresponding to a deficient tooth of a surgical guide body.2. The surgical guide preparation tool according to claim 1 , which further comprises a support member which connects the pair of marker members at a predetermined distance.37.-. (canceled)8. A method for preparing a surgical guide comprising: a step of preparing a gauge body having a pair of marker members claim 1 , wherein each of the marker members is provided with plural marks which are recognizable by a CT scanned image and disposed longitudinally and laterally at substantially regular intervals;a step of installing the gauge body at a position of the surgical guide body that corresponds to a deficient tooth, capturing a CT scanned image obtained in such a state that the surgical guide body is installed on the teeth into a computer, and reading the positions of marks of respective marker members corresponding to the insertion direction of the implant by analysis with computer operation;a step of inserting a positioner into the internal side of the guide ring, inserting the guide ring into the internal side of the gauge body, and inserting a pin in such a direction connecting the axis of the positioner and the positions of the marks of respective marker members from which the insertion direction of the implant has been read; anda step of fixing the guide ring to the surgical guide body at such a position where the pin is inserted, and then removing the pin, positioner and gauge body.9. The method for ...

SYSTEMS AND METHODS FOR RECORDING DENTAL-IMPLANT INFORMATION

Alignment systems and methods for recording the orientation information of a dental implant are disclosed. The alignment system is a plate-type positioning device used for recording and identifying the location of dental implants, standardizing the implant assessment and providing a means to identify the abutment screw position. The plate has a guide hole to position and locate the implant position relative to the plane of the plate. In one aspect, an alignment system includes a plate with a hole to receive a positioning rod. The rod has a tip that engages the screw head of a dental implant, aligning the rod with the long axis of the dental implant and placing the plane of the plate at approximately 90 degrees to the long axis. 1. A dental implant alignment system comprising:a plate with a first surface and an opposing, substantially parallel second surface and having a hole that extends from the first surface to the second surface; anda positioning rod having a tip to engage a screw head of a dental implant, wherein the plate is approximately perpendicular to a long axis of the dental implant when the rod is inserted into the hole and the tip engages the screw head.2. The system of claim 1 , wherein the first surface comprises an embossed region to engage an embossed pattern of a bite block of a dental x-ray film holder.3. The system of claim 1 , wherein the second surface comprises at least one textured region to receive impression material and adhere the plate to one or more teeth located adjacent to the dental implant.4. The system of claim 1 , wherein the hole is a guide hole with a diameter slightly larger than the diameter of the positioning rod.5. The system of further comprising a guide to be inserted into the hole claim 1 , the guide including a guide hole with a diameter slightly larger than the diameter of the positioning rod.6. The system of further comprises an x-ray reference marker located on an edge of the plate.7. The system of claim 1 , wherein ...

ASSOCIATION OF WIRELESS DETECTOR WITH AN IMAGING APPARATUS

A method for directing image data to a dental treatment site wherein a sensor controller is positioned near a programmed radio-frequency identification device at the dental treatment site. A command entry configures the sensor controller to encode and transmit image data content for delivery to a receiving address, according to information obtained from the radio-frequency identification device. A digital sensor that is associated with the sensor controller is positioned in proximity to a subject. Image data is acquired from the digital sensor and transmitted from the sensor controller to a wireless access point, and from the wireless access point to a host computer at the receiving address. The acquired transmitted image data is stored in a computer-accessible electronic memory. 119-. (canceled)20. A method for directing image data to a dental treatment site , comprising:positioning a sensor controller near a programmed radio-frequency identification device located at the dental treatment site;providing a command that configures the sensor controller to encode and transmit image data content for delivery to a receiving address, according to information associated with the dental treatment site obtained from the radio-frequency identification device;positioning a digital sensor that is associated with the sensor controller in proximity to a subject;acquiring image data from the digital sensor and wirelessly transmitting the acquired image data from the sensor controller to a wireless access point;transmitting the data from the wireless access point to a host computer at the receiving address; and storing the acquired transmitted image data in a computer-accessible electronic memory.21. The method of wherein the digital sensor is an x-ray sensor.22. The method of wherein the digital sensor is taken from the group consisting of an intra-oral camera claim 20 , a digital camera claim 20 , a video camera claim 20 , or a sensor for an ultrasound imaging apparatus.23. The ...

Computed radiography license method and system

A method for licensing a system for obtaining an X-ray image of a subject. The system employs flexible information carrier plates for computed radiography, which are exposed to X-rays and then scanned in a scanner. A license media is provided with a RFID transponder, which stores in its memory identification information referring to the system components as well as information referring to an amount of valid licenses available for use of the system components. When the identification information stored in the memory of the license media RFID transponder matches the identification information transmitted to the scanner by a processing and acquisition station the carrier plates are scanned automatically.

METHOD FOR DETERMINING POSITION OF ORTHODONTICS MINI-SCREW AND APPARATUS THEREOF

Disclosed herein are a method and apparatus for determining the location of an orthodontic fastener. In the method, a first location on a tooth and a second location on alveolar bone are set on a patient's medical image. Thereafter, a first rectilinear line including two points, that is, the set first and second locations, is generated. Thereafter, bone density values at the locations of the alveolar bone on the generated first rectilinear line are computed using the medical image. Finally, the location of the alveolar bone at which a first fastener is inserted is determined based on the computed bone density values. 1. A method of determining a location of an orthodontic fastener , comprising:setting, by a processor, a first location on a tooth and a second location on alveolar bone on a patient's medical image;generating, by the processor, a first rectilinear line including two points, that is, the set first and second locations;computing, by the processor, bone density values at locations of the alveolar bone on the generated first rectilinear line using the medical image; anddetermining, by the processor, a location of the alveolar bone at which a first fastener is inserted based on the computed bone density values.2. The method of claim 1 , further comprising displaying claim 1 , by the processor claim 1 , the computed bone density values at the locations of the alveolar bone on a screen on which the medical image is displayed.3. The method of claim 2 , wherein displaying further comprises claim 2 , when a third location on the first rectilinear line is selected in response to user input claim 2 , displaying a bone density value at the selected third location in synchronization of the third location.4. The method of claim 1 , wherein determining further comprises determining a location having a maximum one of the bone density values to be the location at which the first fastener will be inserted.5. The method of claim 1 , wherein determining further comprises ...

DENTAL REGISTRATION DEVICE AND METHOD

An apparatus for registering occlusal dimensions, comprising a support surface sized and configured for providing areal support to a registration rim; and at least one connector adapted to releasably connect to a dental implant extension. 1. An apparatus for registering occlusal dimensions , comprising:a support surface sized and configured for providing areal support to a registration rim; andat least one connector adapted to releasably connect to a dental implant extension.2. An apparatus according to comprising a registration base member having said support surface at a first end and said at least one connector at a second end opposing said first end.3. An apparatus according to claim 2 , wherein said registration base comprising an occlusal flat solid connectable against a free end of said dental implant extension thereby providing said support surface in occlusal position.4. An apparatus according to claim 3 , wherein said occlusal flat solid is sized and configured for positioning over a chosen bare gingival length.5. An apparatus according to claim 4 , wherein said occlusal flat solid is sized and configured for positioning in-between two laterally positioned teeth.63. An apparatus according to claim 4 , wherein said occlusal flat solid and/or said registration rim is sized for registering a single opposing tooth.7. An apparatus according to claim 2 , wherein said registration base member comprising a vestibular flat solid laterally connectable to said dental implant extension thereby providing said support surface in vestibular position.8. An apparatus according to claim 7 , wherein said vestibular flat solid is textured and configured to harmlessly press against supported soft tissue.9. An apparatus according to claim 8 , wherein said tissue comprising labial mucosa and/or buccal mucosa.10. An apparatus according to claim 2 , wherein said registration base member comprising a mesh.11. An apparatus according to claim 2 , wherein said registration base member ...

Dental x-ray apparatus and associated method

A dental X-ray apparatus of the conical-beam digitized-tomography type includes: an X-ray generator emitting an X-ray beam towards an object and provided with a collimation element for collimating the emitted beam; an X-ray sensor having an active surface arranged opposite the generator; wherein the generator and the sensor can rotate simultaneously about a rotation axis, the sensor being oriented so that a longitudinal axis extending from the generator to the sensor through the rotation axis is perpendicular to the active surface of the sensor, the center of the sensor being transversally offset relative to the projection of the axis on the sensor's active surface, the arrangement of the collimation element and the sensor thus offset defining that the collimated beam illuminates the sensor's active surface while leaving a peripheral area of the surface that is faintly illuminated by the collimated beam relative to the rest of the active surface.

SYSTEM AND METHOD FOR GUIDING DENTAL TREATMENT TOOLS

The invention is a system and method for guiding a dental treatment tool. The system comprises a guidance device inserted into the mouth and an analyzer unit receiving tool location information from the device and providing an image indicating the location of the tool in relation to the jaw. The guidance device provides a platform to which any type of dental tool can be attached and supports the tool, allowing it to be moved in any direction. The system tracks the motion of the tool and displays its location and orientation relative to a three dimensional coordinate system whose origin is located on part of the device. Prior to the procedure the practitioner designs a surgery or treatment path, which is displayed on top of an image of a region in the mouth. An image of the tool showing its instantaneous location and orientation is displayed as an overlay. 1. A system for aiding a practitioner to guide a dental treatment tool by tracking the motion of said tool and displaying its location and orientation relative to a three dimensional coordinate system whose origin is located at a fixed location inside the mouth of a patient , said system comprising: i) a fixation unit adapted to be attached to and detached from the jaw and/or teeth of said patient;', 'ii) an interfacing unit attached to said fixation unit in such a manner that allows said interfacing unit to be moved laterally relative to said fixation unit and to be tilted relative to a vertical axis, said interfacing unit being adapted to enable said dental treatment tool to be mechanically fixedly attached to it;', 'iii) a sensor unit comprising several sensors adapted to produce signals related to the instantaneous location and orientation of said interfacing unit and attached tool relative to said fixation unit placed at different locations on said guidance device and a transmitter adapted to transmit said signals; and, 'A) a guidance device comprising i) a receiver adapted to receive said signals transmitted ...

METHOD AND SYSTEM FOR RESTORING BODY PARTS

The present relates to a method and system for determining the position and orientation of implants located in a body part of a patient. The method and system comprise determining voxels having an intensity value corresponding to implants in a three-dimensional radiographic representation of the body part. The method and system further comprise generating multiple random virtual implants, providing a score for each virtual implant, until obtaining a score that identifies implants. The score is based on a number of voxels having an intensity value corresponding to implants contained in each generated virtual implant. And the method and system comprise determining, based on the score of virtual implants, the position and orientation of the implants located in the body part. 1. A system for determining position and orientation of implants located in a body part of a patient , the system comprising: determining in a three-dimensional radiographic representation of the body part an intensity value of voxels representing the implants;', 'generating multiple random virtual implants and providing a score for each virtual implant, the score being based on a number of voxels contained in each generated virtual implant; and', 'determining position and orientation of the implants in the three-dimensional radiographic representation of the body part based on the score of each virtual implant., 'a processing unit for2. The system of claim 1 , wherein the processing unit generates multiple random virtual implants in various combinations of location and position.3. The system of claim 1 , wherein the processing unit further:selects a region of the three-dimensional radiographic representation to be searched for implants; andgenerating the random virtual implants is performed in the selected region.4. The system of claim 1 , wherein the processing unit further:generates data to be used to design a medical model adapted to the implants located in the body part.5. The system of claim ...

DENTAL POSITIONING STENT, AND MANUFACTURING METHOD, USING METHOD AND COMPONENTS FOR THE SAME

A dental positioning stent for drilling an implant hole and a manufacturing method, a using method and components for the same are provided. The manufacturing method includes: slicing a tooth mold and a false tooth model along a preset slice plane; fixing two markers in the preset slice plane on two sides of the false tooth model respectively; covering the markers and the false tooth model with a shaping agent to form a positioning stent; putting the positioning stent on the teeth in a mouth to perform tomography imaging to acquire a slice image of the preset slice plane; mounting a positioning aid having a positioning hole in the positioning stent according to the slice image pasted up on the tooth mold to guide an initial drill. A dental positioning stent for tomography imaging, and a manufacturing method, a using method, and components thereof are provided. 1mounting an analog implant in an implant hole of the tooth mold;putting the positioning stent on the tooth mold; andremoving a part of the tooth mold according to inner edge boundaries of the positioning stent and the tooth mold and an upper end periphery of the analog implant to form a concave, so as to manufacture the abutment tooth according to the concave and the false tooth space.. A using method for a dental positioning stent, used for manufacturing an abutment tooth, wherein a shape of the positioning stent corresponds to a tooth mold, and the positioning stent has a false tooth space corresponding to a shape of a false tooth, the method comprising: This application is a divisional of co-pending application Ser. No. 13/302,255, filed Nov. 22, 2011, and the right of priority of parent application is and was claimed under 35 USC §119 of Taiwanese Application No. 99140979, filed 2010 Nov. 26, the entire disclosure of which is incorporated herein by reference.1. Technical FieldThe disclosure relates to a dental positioning stent, and a manufacturing method, a using method, and components for the same, and ...

METHOD AND SYSTEM FOR OPTIMIZING DENTAL ALIGNER GEOMETRY

Method and system for establishing an initial position of a tooth, determining a target position of the tooth in a treatment plan, calculating a movement vector associated with the tooth movement from the initial position to the target position, determining a plurality of components corresponding to the movement vector, and determining a corresponding one or more positions of a respective one or more attachment devices relative to a surface plane of the tooth such that the one or more attachment devices engages with a dental appliance are provided. 1. An apparatus for modeling a dental appliance and positioning of attachment devices for moving a tooth , comprising:a data storage unit;a processing unit coupled to the data storage unit, wherein the processing unit is configured to determine a first position of a tooth, determine a second position for the tooth in a treatment plan, calculate a movement vector associated with a sweep geometric path to move the tooth from the first position to the second position.2. The apparatus of claim 1 , wherein the data storage unit comprises a database comprising at least one patient treatment history; orthodontic therapies claim 1 , orthodontic information claim 1 , and diagnostics.3. The apparatus of further including:determining a component corresponding to the movement vector, anddetermining a position of one or more attachment devices relative to a surface plane of the tooth such that the one or more attachment devices engages with the dental appliance at a contact point to generate the component corresponding to the movement vector.4. The apparatus of claim 3 , wherein the one or more attachment devices is configured to apply a predetermined force on the dental appliance substantially at the surface plane of the tooth.5. The apparatus of claim 3 , wherein the one or more attachment devices may include a plurality of dental attachment devices provided on the tooth in an abutting position relative to each other claim 3 , ...

Method For Pre-Operative Visualization Of Instrumentation Used With A Surgical Guide For Dental Implant Placement

The invention relates to manufacturing a surgical guide to be placed in a patient's mouth. The patient's mouth is scanned to obtain surgical-region scan data at a region where an implant is to be located. The patient's mouth is also scanned in the opened position to acquire dental conditions opposite from the surgical region so as to obtain opposing-condition scan data. A virtual model is developed using the surgical-region scan data and the opposing-condition scan data. Using the virtual model, a surgical plan is developed that includes the location of the implant to be installed in the patient. A virtual surgical guide is also developed based on the surgical plan. The dimensions of instrumentation to be used with the surgical guide are checked to ensure they will fit within the mouth by use of the opposing-condition scan data. After checking, final surgical-guide manufacturing information is obtained for manufacturing the surgical guide.

METHOD FOR PLANNING A DENTAL PROSTHESIS IMPLANT ARRANGEMENT AND A REFERENCE ARRANGEMENT

The invention includes an apparatus and a method for planning a dental prosthesis implant arrangement. An oral reference arrangement (e.g., a dental tray) can include an alignment portion, configured for extra-oral placement, and having surfaces configured to receive and display an optical reference plane projected from an external reference system. The optical reference plane can provide a reference to align the oral reference arrangement and/or teeth and a jaw of a patient for imaging and subsequent planning of a dental prosthesis implant. A method of planning a dental prosthesis implant arrangement can include initial imaging of the teeth and the jaw of the patient, while the above-described oral reference arrangement is detachably mounted to the teeth and/or jaw of the patient. Three-dimensional information relating to the oral reference arrangement, the teeth, and/or the jaw can be used to generate a virtual model of the teeth and/or the jaw. 1. An oral reference arrangement , comprising:a connecting unit, configured for detachable connection to a patient's teeth or to one or more auxiliary attachment points on an interior jaw, defining at least one orientation plane;an alignment unit fixedly attached to, or coextensive with, the connecting unit, and including at least one plane that is generally coplanar with the orientation plane,the alignment unit further including at least one reference surface arranged for extra-oral placement and configured to receive and display an optical reference plane projectable by an external reference system.2. The reference arrangement of claim 1 , wherein the at least one reference surface comprises a first reference surface and a second reference surface.3. The reference arrangement of claim 1 , wherein at least one of a top surface or a bottom surface of the alignment unit is coplanar with the orientation plane.4. The reference arrangement of claim 1 , further comprising a plurality of reference elements claim 1 , each of ...

System and Method for Improved Intra-Oral Scanning Protocol and Calibration

A method of providing an accurate three-dimensional scan of a dental arch area is disclosed. The arch area has two segments and a connecting area between the two segments. The connecting area has homogeneous features. A connecting-geometry tool with at least one definable feature is affixed to the arch area. The definable feature overlays at least part of the connecting area. The arch area is scanned to produce a scanned dataset of the arch area. The definable feature of the connecting-geometry tool on the connection area is determined based on the scanned dataset. The dimensions of the arch area are determined based on the data relating to the definable features from the scanned dataset.

DEVICES AND METHODS FOR ENHANCING BONE GROWTH

The present invention is generally related to implants for compensating bone loss in mammalian body, and to devices and methods for replacing or creating facial bone. The present invention relates to devices and methods for implanting an implantable device in a subject's body. The implantable device embodying features of the present invention include a body formed from a rig or matrix having a trabecular meshwork structure or cells with shapes suitable for a particular anatomical area of interest. The device may be a dental implant serving as a platform for placement of dental crowns. 1. An implantable dental device for implanting within a subject's mouth , comprising:{'b': '3', 'a dimensional trabecular meshwork structure configured to promote bone growth and having a plurality of interconnected cells, at least a portion of the cells forming a plurality of vertically aligned cells with at least a portion of the cells configured for receiving bone graft material therein, the structure having a length, a height, a width, a first end, and a second end;'}at least one root-form implant formed integral with the meshwork structure;at least one fixating surface located substantially on the structure for receiving a threaded fixating element for operatively attaching the structure to a patient's jawbone; andat least one prosthesis receiving surface disposed adjacent a corresponding root-form implant, the prosthesis receiving surface configured for receiving a corresponding prosthesis thereon.2. The device of claim 1 , wherein the length of the structure is nominally defined by a distance between first end and second end of the structure claim 1 , and ranges from about 5 mm to about 200 mm.3. The device of claim 1 , wherein the height of the structure is nominally defined by a distance between a lower rim and an upper rim of the structure claim 1 , and ranges from about 1 mm to about 60 mm.4. (canceled)5. The device of claim 1 , wherein the plurality of cell structures ...

X-ray CT Photographic Apparatus

An X-ray CT photographic apparatus including: a beam shaping mechanism that regulates an irradiation range of an X-ray generated from an X-ray generator and shapes the X-ray into an X-ray cone beam; and a main body controller that changes a read region, where an X-ray detection signal is read in the X-ray detector, according to the irradiation range of the X-ray cone beam. The main body controller changes the irradiation range of the X-ray cone beam to an x-axis direction during an X-ray CT photography such that only a set CT photographic region is irradiated with the X-ray cone beam according to the set CT photographic region input through a CT photographic region setting unit. The main body controller changes a read region in an X-ray detector with respect to the x-axis direction in a detection surface of the X-ray detector during the X-ray CT photography.

Dental Sensor Holder and Method of Holding a Dental Sensor

A dental sensor holder including a strip of pliable, longitudinally elastic material having two ends. The holder is constructed by permanently bonding the two ends of the strip to form a somewhat elastic loop. In addition, the sensor holder includes an adjustable bond portion on the inside of the loop which may selectively be engaged to join adjacent portions of the strip into a functional bitewing.

DIGITAL X-RAY DIAGNOSIS AND EVALUATION OF DENTAL DISEASE

A method for diagnosis and evaluation of tooth decay comprises: locating in an x-ray image the contour of the dento-enamel junction (DEJ); measuring optical density along contours substantially parallel to and on either side of the DEJ contour; and calculating at least one numerical decay value from the measured optical densities. A method for diagnosis and evaluation of periodontal disease comprises: measuring in an x-ray image a bone depth (BD) relative to the position of the cemento-enamel junctions (CEJs) of adjacent teeth; measuring bone density along a contour between the adjacent teeth; and calculating a numerical crestal density (CD) value from the measured bone density. Calibration standards may be employed for facilitating calculation of the numerical values. A dental digital x-ray imaging calibration method for at least partly correcting for variations of the optical densities of images acquired from the dental digital x-ray imaging system. 1. A method for diagnosis and evaluation of tooth decay , said method comprising the steps of:(a) locating in an x-ray image the contour of a dento-enamel junction (DEJ);(b) measuring at least one optical density along contours substantially parallel to and on either side of the DEJ contour; and(c) calculating at least one numerical decay value from the measured at least one optical density.2. The method of claim 1 , further comprising the step of calibrating the numerical decay value claim 1 , the bone depth claim 1 , or the numerical crestal density using a radiograph of at least one composite calibration block.3. The method of claim 1 , wherein said at least one numerical decay value is suitable for the diagnosis and evaluation of periodontal disease.4. The method of claim 1 , further comprising the step of displaying said at least one numerical decay value.5. The method of claim 4 , further comprising the step of dynamically displaying said at least one numerical decay value.6. The method of claim 5 , further ...

METHOD AND APPARATUS FOR SUPPORTING DENTAL IMPLANTATION SURGERY

In a method and apparatus for supporting dental implantation surgery, a three-dimensional CT image of jaws of an object is acquired. A reference site of the jaws and an implantation position of a gum in the jaws are set in the three-dimensional CT image. The implant is implanted at the implantation position. A three-dimensional optical image of an inside of an oral cavity of the object is then produced. The reference site is positionally set in the three-dimensional optical image through recognition of a shape of the reference site in the three-dimensional optical image. A surgical tool is positionally controlled to the implantation position in the oral cavity, based on i) a relationship between the position of the reference site and the implantation position of the gum in the three-dimensional CT image and ii) the position of the reference site in the three-dimensional optical image. 1. An apparatus for supporting dental implantation surgery , comprising:CT (computed tomography) image acquiring means for acquiring a three-dimensional CT image of jaws of an object;first setting means for setting a reference site of the jaws and an implantation position of a gum in the jaws in the three-dimensional CT image, an implant being implanted at the implantation position of the gum;three-dimensional optical image acquiring means for acquiring a three-dimensional optical image of an inside of an oral cavity of the object;second setting means for setting a position of the reference site in the three-dimensional optical image by recognizing a shape of the reference site in the three-dimensional optical image; andcontrol means for controlling a position of a surgical tool to the implantation position in the oral cavity, based on i) a relationship between the position of the reference site and the implantation position of the gum in the three-dimensional CT image and ii) the position of the reference site in the three-dimensional optical image.2. The apparatus of claim 1 , ...

EXTRA-ORAL DIGITAL PANORAMIC DENTAL X-RAY IMAGING SYSTEM

An extra-oral digital panoramic dental x-ray imaging system for multi-layer panoramic and transverse X-ray imaging providing with an X-ray source and a digital imaging device providing real time frame mode output and autofocusing. The X-ray source and imaging device are mounted in a mechanical manipulator defining the trajectory of a predetermined image layer. The imaging device communicates with a processor that generates a frames memory from which an image reconstruction mechanism composes the final images. 1. A system for performing panoramic dental x-ray imaging , comprising:an x-ray source configured for exposing an object to be imaged to x-rays;an x-ray imaging device configured for producing multiple frames during at least part of the exposure; anda manipulator providing a rotational axis around which axis at least one of i) the x-ray source and ii) the imaging device, rotates along a circular or non-circular spline executing an exposure profile and during at least part of said exposure profile, x-rays are emitted by said x-ray source, the axis being located between a focal point of the x-ray source and the x-ray imaging device, wherein the x-ray imaging device has an active area with a long dimension (m) and a short dimension (n), a ratio of the long dimension to the short dimension being at least 1.5 (m/n>1.5);a storage and retrieval system for storing and accessing in a non-destructive manner, generated and irradiated frames, received from the x-ray imaging device, with a time delay of not more than one second from the time each frame was produced by the x-ray imaging device; anda processing unit operating a reconstruction algorithm reconstructing a panoramic layer from the stored and retrieved irradiated frames and displaying said panoramic layer no later than 10 seconds from the end of said exposure profile.2. A method claim 1 , utilizing the system of claim 1 , for performing panoramic dental x-ray imaging claim 1 , the method comprising the steps of:a. ...

DENTAL SURFACE MODELS

To create a digital surface model of an intra-oral anatomy, a recess or a hole in an impression material having a predetermined shape and size is scanned. The scanning results and information on the predetermined shape and size are used for determining a threshold value representing interface between the impression material and another material. The threshold value is then used in generating the digital surface model from CT scanning data of an impression of an intra-oral anatomy on said impression material. 1. A method for generating a digital surface model depicting an interface between an impression material and another material from volumetric data including image data of a physical impression of an intra-oral anatomy , the method comprising:acquiring information defining predetermined dimensions of a recess or a hole in the impression material;acquiring CT scanning results of said recess or hole in the impression material;using said information defining the predetermined dimensions and said CT scanning results of said recess or hole to determine a threshold value for an interface between the impression material and the other material;acquiring CT scanning results of the physical impression of an intra-oral anatomy, the impression being made in the same impression material as the recess or hole; andusing said threshold value in generating a surface of said impression of an intra-oral anatomy from said scanning results of said impression of an intra-oral anatomy.2. A method as claimed in claim 1 , further comprising:creating the recess or the hole in the impression material by means of a calibration tool having the predetermined dimensions.3. A method as claimed in claim 1 , wherein determining said threshold value includes:determining location and orientation of said recess or hole in said scanning results of said recess or hole;using the predetermined dimensions of said recess or hole and the determined location and orientation thereof to identify from the CT ...

TRACKING TEETH MOVEMENT CORRECTION

Embodiments are provided for tracking teeth movement correction. One method embodiment includes using a set of positioning appliances shaped to move teeth through a number of successive stages of arrangements of an expected teeth arrangement model where each stage corresponds to a particular positioning appliance, mapping a current teeth position based upon positions of a number of physical markers attached to a number of physical teeth, comparing the positions of the number of physical markers with a corresponding number of virtual markers positioned on a number of virtual teeth of a stage in the expected teeth arrangement model, determining whether midcourse correction is needed. 120.-. (canceled)21. A non-transitory computer readable medium , having instructions , which when executed by a processor , cause a device to:create a virtual teeth model corresponding to a number of physical teeth;position a number of virtual markers on at least one of a number of virtual teeth of the virtual teeth model, where the number of virtual markers are positioned on the at least one of the number of virtual teeth corresponding to positioning of a number of physical markers on at least one of a number of physical teeth;create a virtual expected teeth arrangement model from the virtual teeth model including a number of successive stages of arrangements of the virtual teeth model and the virtual markers;design a set of positioning appliances shaped to move the number of physical teeth through the number of successive stages where each stage corresponds to a particular positioning appliance;detect, at a particular stage, a position of the at least one of the number of physical markers based on an image taken of the at least one of the number of physical markers;compare the position of the at least one of the number of physical markers with a position of the corresponding at least one of the number of virtual markers at the particular stage; anddetermine whether midcourse correction ...

ARRANGEMENT FOR INTRA-ORAL X-RAY IMAGING

The invention relates to an intra-oral x-ray imaging arrangement which includes an imaging sensor () arranged positionable within a patient's mouth and a control system of the imaging arrangement. The control system is arranged in functional connection with a means that has been arranged to send measurement signals to the control system informing on position of at least one component included in the arrangement. In connection with the imaging sensor (), and a radiation source () included in the arrangement, means (A, M, G) have been arranged to measure their spatial position and to send measurement signals based on these measurements to the control system arranged with a means to determine, based on said measurement signals, information on mutual spatial position of the imaging sensor () and the radiation source (), or of a component () arranged to the radiation source (). 1. An intra-oral x-ray imaging arrangement , which includes as separate structures , first , a radiation source having a collimator structure limiting an x-ray beam for generating the beam used in imaging and for aiming it to the object to be imaged , secondly , an imaging sensor arranged positionable within a patients mouth , and a control system of the imaging arrangement , the control system being arranged in functional connection with at least a first means belonging to the imaging arrangement , which means are arranged to transmit to the control system measurement signals including information on a position of at least one component of the arrangement , wherein the arrangement includes a means arranged in connection with both the imaging sensor and the x-ray source to measure their spatial position and to send measurement signals based on these measurements to the control system of the arrangement , and in that a means is arranged to the control system to determine based on said measurement signals information on the mutual spatial position of the imaging sensor and the radiation source , or ...

COLLIMATOR ARRANGEMENT IN CONNECTION WITH INTRA-ORAL X-RAY IMAGING

The invention relates to an intra-oral x-ray imaging arrangement which includes as separate structures, first, a radiation source () having a collimator structure () limiting an x-ray beam for producing the beam used in imaging and for aiming it to the object to be imaged, secondly, an imaging sensor () arranged positionable within a patient's mouth (), and a control system of the imaging arrangement. The collimator structure () is implemented as a structure () which enables adjusting a collimator opening limited by the collimator for at least one of the following: its size, its shape, its location, its position. 1. An intra-oral x-ray imaging arrangement , which includes as separate structures , first , a radiation source having a collimator structure limiting an x-ray beam for generating the beam used in imaging and for aiming it to the object to be imaged , secondly , an imaging sensor arranged positionable within a patient's mouth , and a control system of the imaging arrangement , wherein the arrangement includes means arranged in connection with both the imaging sensor and the x-ray source to measure their spatial position and to send measurement signals based on these measurements , that the control system of the imaging arrangement includes means to determine based on said measurement signals information on the mutual spatial position of the imaging sensor and the radiation source , or of a component arranged to the radiation source , that said collimator structure is implemented by a structure which enables adjusting a collimator opening limited by the collimator for at least one of the following: its size , its shape , its location , its position , which structure for adjusting the collimator opening is arranged to functions as motorized or by other electric power means and its control to be done as based control signals received from the control system of the imaging arrangement.2. An imaging arrangement according to claim 1 , wherein said collimator ...

ARM STRUCTURE FOR INTRA-ORAL X-RAY DEVICE

An arm construction of an intra-oral x-ray device according to the present invention comprises at least two elongated support arms (′) jointed to each other, into connection with a substantially first end of the first support arm () of which is arranged a radiation source () and in which the jointing between the support arms is implemented such that the successive support arms (′) connect to each other from sides () of the support arms facing each other. 1. An arm construction of an intra-oral x-ray device , which comprises at least two elongated support arms jointed to each other , into connection with substantially that end of the first support arm which is opposite with respect to said jointing is arranged a radiation source , which jointing is implemented such that the first support arm is turnable with respect to a physical or virtual joint axis defined by said jointing , wherein said jointing is implemented such that the successive support arms connect to each other from sides facing each other.2. An arm construction of an intra-oral x-ray device , which comprises at least two elongated support arms jointed to each other , into connection with substantially that end of the first support arm which is opposite with respect to said jointing is arranged a radiation source , which jointing is implemented such that the first support arm is turnable with respect to a physical or virtual joint axis defined by said jointing , wherein said jointing is implemented such that at least the ends of the successive support arms are positioned substantially side by side.3. An arm construction of an intra-oral x-ray device , which comprises at least two elongated support arms jointed to each other , into connection with substantially that end of the first support arm which is opposite with respect to said jointing is arranged a radiation source , which jointing is implemented such that the first support arm is turnable with respect to a physical or virtual joint axis defined by ...

ARM OF AN ARM STRUCTURE FOR AN INTRA-ORAL X-RAY DEVICE

An arm construction of an intra-oral x-ray device according to the present invention comprises at least two elongated support arms () jointed to each other, into connection with a substantially first end of the first support arm () of which is arranged a radiation source () and in which at least one of the support arms () comprises a cover which is arranged to comprise a structure openable or detachable in the longitudinal direction of the support arm, which structure is substantially of the length of the support arm or covers at least a significant portion of the length of the support arm. 1. An arm construction of an intra-oral x-ray device , which comprises at least two elongated support arms jointed to each other , into connection with substantially that end of the first support arm which is opposite with respect to said jointing is arranged a radiation source , which jointing is implemented such that the first support arm is turnable with respect to a physical or virtual joint axis extending on a horizontal plane and defined by said jointing , wherein at least one of the support arms comprises a cover which is arranged to comprise a structure openable or detachable in the longitudinal direction of the support arm , which structure is substantially of the length of the support arm or covers at least a significant portion of the length of the support arm.2. An arm construction according to claim 1 , wherein said structure openable or detachable in the longitudinal direction is implemented in connection with the support arm such that the structure in question is openable or detachable from the support arm without otherwise disassembling the arm construction.3. An arm construction according to claim 1 , wherein said jointing is implemented such that the successive support arms connect to each other from sides facing each other.4. An arm construction according to claim 1 , wherein said jointing is implemented such that at least the ends of the successive support ...

Intraoral Radiographic Sensors with Cables Having Increased User Comfort and Methods of Using the Same

A radiological image sensor has an electronic substrate and an imaging chip held within a housing, the imaging chip having electronics that create a dead space, with a cable attached to the housing at a cable button connector, the dead space being at a short distal side of the generally rectangular sensor opposite the short mesial side at which the cable exits the cable button connector. The mesial side of the sensor either does not have a dead space created by electronics of the imaging chip or the dead space found on the mesial side of the sensor is less than approximately 4 mm, and, preferably, approximately 2 mm or less. The cable can be a flat cable with a length of approximately one meter or less that can be connected to a round cable. 1. A radiological image sensor , comprising:an electronic substrate and an imaging chip held within a housing, said imaging chip having electronics that create a dead space; anda cable attached to the housing at a cable button connector;wherein the sensor has a generally rectangular shape with a short mesial side toward which the cable exits the cable button connector and a short distal side opposite which the cable exits the cable button connector; andwherein the dead space is created in the distal side of the sensor and the dead space includes two corner portions of added local free space.2. The radiological image sensor of claim 1 , wherein the mesial side of the sensor does not have a second dead space created by electronics of the imaging chip.3. The radiological image sensor of claim 1 , wherein the sensor has a mesial side dead space of less than approximately 4 mm.4. The radiological image sensor of claim 1 , wherein the sensor has a mesial side dead space of approximately 2 mm or less except for the two corner portions of added local free space.5. The radiological image sensor of claim 1 , wherein the cable is a flat cable.6. The radiological image sensor of claim 5 , wherein the cable button connector is mounted to a ...

INTRA-ORAL X-RAY IMAGING DEVICE FOR DETECTING X-RAYS FROM OUTSIDE THE ORAL CAVITY

Provided is an intraoral X-ray imaging apparatus for detecting X-ray outside an oral cavity, including: a frame; an X-ray irradiator which is installed to be supported by the frame and of which the one end portion is inserted into the oral cavity and which irradiates X-ray through an X-ray irradiation hole formed on the one end portion inserted into the oral cavity; and an X-ray detector which is arranged to be separated from the X-ray irradiator in the frame so as to detect the X-ray irradiated from the X-ray irradiator outside the oral cavity and which is movably installed so as to adjust a distance to the X-ray irradiator. In the X-ray imaging apparatus and an imaging method using the X-ray imaging apparatus, since the X-ray irradiator is located inside the oral cavity, it is possible to obtain an image having a high quality with a low X-ray dose and to avoid confusion in image diagnosis by removing a ghost image. In addition, since a distance between the X-ray irradiator and the X-ray detector is minimized, it is possible to obtain images of portions of a tooth with constant magnification and to obtain accurate images without distortion. 1. An intraoral X-ray imaging apparatus for detecting X-ray outside an oral cavity , comprising:a frame;an X-ray irradiator which is installed to be supported by the frame and of which the one end portion is inserted into the oral cavity and which irradiates X-ray through an X-ray irradiation hole formed on the one end portion inserted into the oral cavity; andan X-ray detector which is arranged to be separated from the X-ray irradiator in the frame so as to detect the X-ray irradiated from the X-ray irradiator outside the oral cavity and which is movably installed so as to adjust a distance to the X-ray irradiator.2. The intraoral X-ray imaging apparatus according to claim 1 , further comprising a supporting arm which connects the X-ray irradiator and the X-ray detector.3. The intraoral X-ray imaging apparatus according to ...

METHOD OF CREATING AN ACCURATE BONE AND SOFT-TISSUE DIGITAL DENTAL MODEL

A method of creating a 3-D anatomic digital model for determining a desired location for placing at least one dental implant in a patient's mouth. The method comprises the act of obtaining a first dataset associated with hard tissue of the patient's mouth. The method further comprises the act of obtaining a second dataset associated with soft tissue of the patient's mouth. The method further comprises the act of combining the first dataset and the second dataset to create a detailed structure of hard tissue and soft tissue having variable dimensions over the hard tissue. 18-. (canceled)9. A method for developing a surgical guide for guiding the insertion of at least one dental implant into a desired location in a patient's mouth , the method comprising the acts of:obtaining a first dataset associated with hard tissue of the patient's mouth and a second dataset associated with soft tissue of the patient's mouth;forming a 3-D anatomic digital model including the first dataset and the second dataset;creating a surgical plan defined by the 3-D anatomic digital model, the surgical plan including virtual implant positions;scanning a cast model of the patient's mouth to obtain a third dataset;combining the third dataset with the 3-D anatomic digital model;placing at least one implant analog in the cast material in a location replicating the location of the at least one virtual implant in accord with the surgical plan;attaching at least one implant-analog mount and at least one master tube into the cast model in accordance with the surgical plan to form a master cast;pouring a flowable material over the master cast and around the at least one master tube;allowing the flowable material to harden, the hardened material forming the surgical guide; andremoving the at least one implant-analog mount and the surgical guide from the master cast.10. The method of claim 9 , wherein the act of creating the surgical plan includes using a computed tomography scanner to obtain the data ...

INTRA-ORAL X-RAY IMAGING DEVICE EQUIPPED WITH CAMERA

Provided is an intraoral X-ray imaging apparatus having a camera, including: a frame; an X-ray irradiator which is installed to be supported by the frame and of which the one end portion is inserted into the oral cavity and which irradiates X-ray through an X-ray irradiation hole formed on the one end portion inserted into the oral cavity; a camera unit which is installed at the one end portion of the X-ray irradiator to image an interior of the oral cavity; a monitor unit which is connected to a camera unit to output the image captured by the camera unit; and an X-ray detector which is arranged to be separated from the X-ray irradiator in the frame so as to detect the X-ray irradiated from the X-ray irradiator outside the oral cavity. In the intraoral X-ray imaging apparatus having a camera, since the X-ray irradiator is located inside the oral cavity, it is possible to obtain an image having a high quality with a low X-ray dose and to avoid confusion in image diagnosis by removing a ghost image. In addition, since the imaging object tooth can be accurately identified inside the oral cavity, the X-ray can be irradiated on only the imaging object tooth, so that it is possible to minimize a radiation exposure dose applied to the head of a patient. 1. An intraoral X-ray imaging apparatus having a camera , comprising:a frame;an X-ray irradiator which is installed to be supported by the frame and of which the one end portion is inserted into the oral cavity and which irradiates X-ray through an X-ray irradiation hole formed on the one end portion inserted into the oral cavity;a camera unit which is installed at the one end portion of the X-ray irradiator to image an interior of the oral cavity;a monitor unit which is connected to a camera unit to output the image captured by the camera unit; andan X-ray detector which is arranged to be separated from the X-ray irradiator in the frame so as to detect the X-ray irradiated from the X-ray irradiator outside the oral cavity. ...

METHOD OF CREATING AN ACCURATE BONE AND SOFT-TISSUE DIGITAL DENTAL MODEL

A method of creating a 3-D anatomic digital model for determining a desired location for placing at least one dental implant in a patient's mouth. The method comprises the act of obtaining a first dataset associated with hard tissue of the patient's mouth. The method further comprises the act of obtaining a second dataset associated with soft tissue of the patient's mouth. The method further comprises the act of combining the first dataset and the second dataset to create a detailed structure of hard tissue and soft tissue having variable dimensions over the hard tissue. 125-. (canceled)26. A method for developing a surgical guide for guiding the insertion of at least one dental implant into a desired location in a patient's mouth , the method comprising the acts of:receiving a surgical plan defined by a 3-D anatomic model, the 3-D anatomic model being formed using a first dataset associated with hard tissue of the patient's mouth and a second dataset associated with soft tissue of the patient's mouth, the surgical plan including at least one virtual implant position;receiving a third dataset derived from scanning a cast model of the patient's mouth;by use of the third dataset and the 3-D anatomic model, placing at least one implant analog in the cast model in a location corresponding with the at least one virtual implant position in accordance with the surgical plan;attaching at least one implant-analog mount to the implant analog in the cast model;coupling a master tube to the implant-analog mount on the cast model, the cast model and the implant-analog mount with the master tube coupled thereto forming a master cast;pouring a flowable material over the master cast and around the at least one master tube;allowing the flowable material to harden, the hardened material forming the surgical guide and having the master tube embedded therein, the master tube for guiding the insertion of the dental implant in the patient's mouth when the surgical guide is placed in the ...

Dental compositions comprising bisacrylamides and use thereof

A positioning device for holding a dental x-ray imaging media during the taking of a dental x-ray includes an aiming ring, a bite block and a positioning arm extending therebetween. The bite block carries a journal or barrel for receiving a portion of the positioning arm therein such that the portion of the positioning arm thus received can rotate or move therein, such that the position between the bite block and the aiming ring can be selected in one of a plurality of positions corresponding to a position for taking one of a plurality of dental x-ray images. In another embodiment, the bite block carries a window through which a color-coded or other indicia portion of the positioning arm is positioned such that the user can view the indicia to determine the x-ray image for which the device is set. 1. An aiming device for the positioning of a dental image , comprising an aiming ring supported by one end of a support arm; a bite block supported by said support arm at its end generally opposite said aiming ring; said bite block having a bore therein configured to receive said support arm in a manner such that said support arm can be rotated within said bore; a window in said bite block; and an indicia carried by said support arm , such that said indicia is physically observable within said window.2. An aiming device as in claim 1 , wherein said bite block is also provided with a backing plate.3. An aiming device as in wherein said bite block is provided with means to removably affix said backing plate in a selected position relative said bite block.4. An aiming device as in wherein said means to removably affix is a deformable friction grip.5. An aiming ring as in wherein said backing plate is provided with a backing plate window and indicia that is physically observable within said backing plate window.6. An aiming ring as in wherein said backing plate is provided with at least two different indicia claim 5 , one of said indicia appearing in said backing plate window ...

TEMPORARY DENTAL PROSTHESIS FOR USE IN DEVELOPING FINAL DENTAL PROSTHESIS

A method of manufacturing a permanent prosthesis for attachment to a dental implant installed in a mouth of a patient includes scanning a patient specific temporary prosthesis (PSTP) to obtain scan data. The PSTP is attached to the dental implant in the mouth of the patient. Gingival tissue surrounding the PSTP is permitted to heal in the mouth of the patient. In response to aesthetics of the healed gingival tissue surrounding the PSTP in the mouth of the patient not being acceptable, the PSTP is physically modified by (i) removing material from the PSTP, (ii) adding material to the PSTP, or (iii) both. The modified PSTP is scanned and a permanent prosthesis is fabricated as a replica of the modified PSTP using scan data generated from the scan of the modified PSTP. 1. A method of manufacturing a permanent prosthesis , the method comprising:acquiring scan data including computed tomography (CT) data, intraoral scan (IOS) data, or both, of a mouth of patient;using the scan data, determining a location in the mouth of the patient to install a dental implant;using the scan data and the determined location in the mouth of the patient to install the dental implant, virtually designing a patient specific temporary prosthesis (PSTP) including generating virtual PSTP data;using the virtual PSTP data, manufacturing the PSTP;installing the dental implant in the mouth of the patient substantially at the determined location;attaching the manufactured PSTP to the dental implant installed in the mouth of the patient;permitting gingival tissue surrounding the PSTP to heal in the mouth of the patient; andin response to aesthetics of the healed gingival tissue surrounding the PSTP in the mouth of the patient being acceptable, manufacturing the permanent prosthesis as a replica of the PSTP using the virtual PSTP data.2. The method of claim 1 , further comprising designing a surgical guide for use in installing the dental implant in the mouth of the patient substantially at the ...

Customized Dental Prosthesis For Periodontal or Osseointegration, and Related System and Methods

Dental prosthesis, systems, and methods of forming and using a dental prosthesis, are provided. An example of a dental prosthesis includes a first manufactured portion shaped to substantially conform to the three-dimensional surface of a root of a tooth to be replaced and a second manufactured portion shaped to substantially conform to the three-dimensional surface of a crown of the tooth. Furthermore, a CAD/CAM based methods of and systems for manufacturing a customized dental prosthesis are provided. 1. A method of manufacturing a dental tooth prosthesis for implantation into a jawbone cavity of a pre-identified patient , the tooth prosthesis comprising an implant section having a root portion and an occlusally facing interface portion to receive a custom-shaped occlusally facing abutment or crown , the occlusally facing interface portion being an integral part of the tooth prosthesis prior to integrating the tooth prosthesis into an embedding portion of the jawbone cavity of the pre-identified patient , the method comprising the steps of:receiving imaging data describing a three-dimensional shape of an outer surface portion of a root portion of a nonfunctional natural tooth of the pre-identified patient; deriving digital design data defining a three-dimensional shape of an outer surface of a root portion of the tooth prosthesis responsive to the received imaging data, a substantial portion of the three-dimensional shape of the outer surface of the root portion of the tooth prosthesis dimensionally matching a three-dimensional shape of a corresponding outer surface portion of the nonfunctional natural tooth of the pre-identified patient, and', 'combining a plurality of artificially created surface elements with a plurality of naturally shaped surface elements of the root portion to form a virtual three-dimensional representation of the implant section of the tooth prosthesis to thereby provide a numerical description of a physical outer surface of the implant ...

METHOD AND APPARATUS FOR MORE ACCURATE POSITIONING OF DENTAL IMAGING EQUIPMENT

An apparatus for positioning an X-ray imaging system. The apparatus includes an intraoral sensor sized and configured for placement within a human mouth, the intraoral sensor having one or more sensing elements for detecting X-rays, the intraoral sensor further having a signal generation element. Also included is a collimator unit having an X-ray collimator and first and second signal detection elements spaced apart from each other with the X-ray collimator positioned therebetween, the first and second signal detection elements spaced apart from each other, to thereby facilitate aligning of the collimator unit with the one or more sensing elements according to detection of signals from the signal generation element. Further included is an indicator unit located on the collimator unit, the indicator unit configured to display a determination as to whether the collimator unit is properly aligned with respect to the intraoral sensor. 1. An X-ray system comprising:an intraoral sensor sized and configured for placement within a human mouth, the intraoral sensor having one or more sensing elements for detecting X-rays, the intraoral sensor further having a signal generation element;a collimator unit having an X-ray collimator and first and second signal detection elements spaced apart from each other with the X-ray collimator positioned therebetween, the first and second signal detection elements spaced apart from each other to correspond to the signal generation element, to thereby facilitate aligning of the collimator unit with the one or more sensing elements according to detection of signals from the signal generation element; andan indicator unit located on the collimator unit, the indicator unit configured to display a determination as to whether the collimator unit is properly aligned with respect to the intraoral sensor.2. The X-ray system of claim 1 , wherein the signal generation element is a magnet claim 1 , and the signals from the signal generation element ...

Dental Sensor Holder and Method of Holding a Dental Sensor

A dental sensor holder including a loop of material and an adjustable bond. The adjustable bond portion is located on the inside of the loop which may selectively be engaged to join adjacent portions of the loop into a functional bitewing.

3-D Scanner Calibration with Active Display Target Device

Exemplary method and apparatus embodiments according to the applications can provide calibration of a dental scanning device. An exemplary dental apparatus can include a sensing apparatus including at least one lens and a sensor that is configured to obtain one or more images of at least one surface position, and a calibration target including a spatial light modulator configured to form a prescribed set of calibration patterns, and whose display plane corresponds to the at least one surface position. 1. A dental imaging apparatus for surface contour imaging of an object , the apparatus comprising:a first sensing apparatus comprising at least one lens and a sensor that is configured to obtain one or more images of at least one surface position; anda calibration target comprising a spatial light modulator configured to form a prescribed set of calibration patterns, and whose display plane corresponds to the at least one surface position.2. The dental imaging apparatus of claim 1 , where obtained images of the calibration patterns by the first sensing apparatus are decoded to determine a dense one-to-one correspondence between the image points on the first sensing apparatus and on the calibration target.3. The dental imaging apparatus of claim 1 , where the spatial light modulator is an LCD display target device or an active display target device.4. The dental imaging apparatus of claim 1 , further comprising a second sensing apparatus comprising at least one lens and a sensor that is configured to obtain one or more images of the at least one surface position from a different angle than the first sensing apparatus.5. The dental imaging apparatus of claim 1 , further comprising an illumination apparatus configured to direct one or more illumination patterns toward the at least one surface position.6. The dental imaging apparatus of claim 5 , where illumination patterns are directed before or after the displaying of the prescribed set of calibration patterns claim 5 , ...

METHODS AND APPARATUS FOR JAW MOTION ANALYSIS

An apparatus for imaging the head of a patient has a transport apparatus that orbits an x-ray source and detector about the head and acquires 2-D radiographic projection images. One or more head marker retaining elements hold markers in position relative to the skull. One or more jaw marker retaining elements hold markers in position relative to the jaw bone. At least one camera acquires a jaw motion study. A control logic processor in signal communication with the x-ray source, x-ray detector, and the camera is configured to reconstruct volume image content using the 2-D radiographic projection images acquired, to segment the jaw bone structure from the skull bone structure, to register the reconstructed volume image content, and to generate display content that shows jaw bone structure motion acquired from the set of reflectance images. A display in signal communication with the control logic processor displays the generated content. 1. An apparatus for imaging the head of a patient , comprising:a transport apparatus that moves an x-ray source and an x-ray detector in at least partial orbit about a head supporting position for the patient and configured for acquiring, at each of a plurality of angles about the supporting position, a 2-D radiographic projection image of the patient's head;one or more head marker retaining elements that hold a first plurality of markers in position relative to the skull of the patient;one or more jaw marker retaining elements that hold a second plurality of markers in position relative to the jaw bone of the patient;at least one camera that is disposed and energizable to acquire a jaw motion study comprising a set of a plurality of reflectance images from the head supporting position;a control logic processor that is in signal communication with the x-ray source, x-ray detector, and the at least one camera and that is configured by programmed instructions to reconstruct volume image content using the 2-D radiographic projection ...

MEDICAL IMAGING SYSTEM AND OPERATION METHOD THEREFOR

The purpose of the present invention is to provide a method for obtaining a more effective 3D facial image for medical use. The present invention provides a medical imaging system includes a 2D surface image obtaining device including at least one camera for photographing a plurality of 2D facial images of an examinee, at different photography angles or ranges, a visual guidance configured to fix an examinee's line of vision, an X-ray radiography device for radiographing a 3D X-ray radiograph of the examinee's head, and an image synthesis unit for generating a 3D facial image by matching the plurality of 2D facial images with the 3D X-ray radiograph. 1. A medical imaging system , the system comprising:a 2D surface image obtaining device including at least one camera for photographing a plurality of 2D facial images of an examinee;an X-ray radiography device for radiographing a 3D X-ray radiograph of the examinee's head;a visual guidance configured to fix an examinee's line of vision in front of the examinee; andan image synthesis unit for generating a 3D facial image by matching the plurality of 2D facial images with the 3D X-ray radiograph.2. The system of claim 1 , wherein said at least one camera photographs examinee at different angles or ranges.3. The system of claim 1 , wherein the at least one camera includes a single camera moving and obtaining the plurality of 2D facial images.4. The system of claim 1 , wherein the at least one camera includes a plurality of cameras located at different positions.5. (canceled)6. The system of claim 1 , further comprise:a vision sensing means for sensing an examinee's line of vision.7. (canceled)8. The system of claim 6 , wherein the vision sensing means is configured to sense the examinee's line of vision until the photographing of the plurality of 2D facial images is completed.9. (canceled)10. (canceled)11. (canceled)12. (canceled)13. (canceled) The present invention relates generally to a medical imaging system. More ...

PARTIAL SURGICAL GUIDE

A method for forming a surgical guide for a dental patient rotates material about a rotation axis to a first angular position and drills a drill guiding hole using a drilling tool having a drilling tool axis. The drill guiding hole is centered about a guide axis that is orthogonal to the rotation axis. A first planar surface of the guide is formed from the material, wherein the first surface is. oblique to the guide axis. The material is repositioned to orient the first surface orthogonal to the drilling tool. A hole pattern is formed having two or more positioning holes in the first surface, with the pattern corresponding to a pin pattern in a tray that is positionally registered to a dental arch of the patient. A second planar surface of the surgical guide is formed, parallel to the first planar surface. 1. A method for forming a surgical guide for drilling of a dental patient , comprising:rotating material about a rotation axis to a first angular position;drilling a drill guiding hole through the material using a drilling tool having a drilling tool axis, wherein the drill guiding hole is centered about a guide axis that is substantially orthogonal to the rotation axis;forming a first planar surface of the surgical guide from the material, wherein the first surface is oblique to the guide axis;repositioning the material to orient the first surface orthogonal to the drilling tool axis;forming a hole pattern having two or more positioning holes in the first surface, wherein the hole pattern corresponds to a pin pattern in a tray that is positionally registered to a dental arch of the patient; andforming a second planar surface of the surgical guide, wherein the second planar surface is parallel to the first planar surface.2. The method of wherein forming the first planar surface comprises milling the surface from the material.3. The method of wherein the milling is done using a 4-axis milling machine.4. The method of wherein the first planar surface is oblique with ...

Occlusion mapping using elastic foam modeling

A method for generating a mapping of dental occlusion generates a three-dimensional model of the patient's teeth (la, according to acquired image data. The maxillary and mandibular arches are positioned in opposition in the generated model of the patient's teeth and a meal model ( 50 ) generated having characteristics of a foam material. A pressure field distribution for the generated meal model is calculated for one or more pairs of opposed teeth ( 1 a, 1 b ) from the generated three-dimensional model of the patient's teeth. The calculated pressure field distribution ( 54 ) can be displayed.

SYSTEMS AND METHODS FOR PERSONALIZED ORAL IRRIGATION

Described herein are systems and methods for providing personalized oral irrigation. One variation of a system for personalized oral irrigation comprises a fluid reservoir and a customized oral insert in fluid communication with the fluid reservoir. The oral insert comprises an arrangement of fluid openings positioned based on the individual oral or dental structures of a user's teeth to provide a customized fluid flow over the user's teeth. Also described herein are methods for generating an arrangement of fluid openings in a customized oral insert. 1. A customized system for oral irrigation comprising:a fluid reservoir; anda customized oral insert in fluid communication with the fluid reservoir, wherein the customized oral insert comprises an arrangement of fluid openings positioned to provide a customized fluid flow to one or more teeth of a user, wherein the arrangement of fluid openings is determined based on at least one characteristic of the one or more teeth and/or gingiva.2. The system of claim 1 , wherein a fluid opening has a multi-lobe shape comprising a first lobe and a second lobe.3. The system of claim 2 , wherein the multi-lobe shape further comprises a third lobe.4. The system of claim 3 , wherein the first claim 3 , second claim 3 , and third lobes are radially-arranged around a center of the fluid opening.5. The system of claim 4 , wherein the first claim 4 , second claim 4 , and third lobes are radially-symmetric around a center of the fluid opening.6. The system of claim 2 , wherein the first lobe and the second lobe define a lobe angle therebetween.7. The system of claim 6 , wherein the lobe angle corresponds with a curvature of a gingival margin of the one or more teeth.8. The system of claim 3 , wherein the first lobe and the second lobe define a lobe angle therebetween that corresponds with a curvature of a gingival margin of the one or more teeth claim 3 , and the third lobe is approximately aligned along an interproximal space between the ...

USING A CBCT BONE SCAN TO DESIGN A DENTAL ABUTMENT

Disclosed is a method of creating a digital abutment design of a customized dental abutment, the including comprising: obtaining a bone scan comprising a digital representation of at least a part of a patient's jaw including the surface of the jawbone; and designing the digital abutment design of the customized dental abutment; wherein the design of the digital abutment design is at least partly based on fulfilling a set of predefined design criteria including the relationship between the digital representation of the jawbone and the digital abutment design. 1. A method of generating a digital abutment design of a customized dental abutment , wherein the method comprises:obtaining a bone scan comprising a digital representation of at least a part of a patient's jaw including the surface of the jawbone; andgenerating the digital abutment design of the customized dental abutment;where the digital abutment design is at least partly based on fulfilling a set of predefined design criteria comprising the relationship between the digital representation of the jawbone and the digital abutment design.2. The method according to claim 1 , wherein the bone scan comprises a CBCT scan.3. The method according to claim 1 , wherein the relationship between the digital representation of the jawbone and the digital abutment design comprises the relationship between the surface of the digital representation of the jawbone and the outer surface of the digital abutment design.4. The method according to claim 1 , the method further comprising:segmenting the voxel data of the CBCT scan to provide at least a digital bone surface representation; andusing the digital bone surface representation to constrain the digital design of the customized dental abutment to confirm that the predefined design criteria have been fulfilled.5. The method according to wherein the bone scan further comprises information about the shape and position of at least part of one or more teeth adjacent to the desired ...

BIO-COMPATIBLE RADIOPAQUE DENTAL FILLERS FOR IMAGING

Dental contrast formulations (“fillers”) of tailorable X-Ray radiopacity and methods for their use are provided. The disclosed fillers include mixtures of solid particles suspended in a biocompatible fluid. The solid particles contain one or more X-ray radiopaque materials. The biocompatible fluid can also contain one or more soluble X-ray radiopaque components. By controlling the composition of the solid particles, the composition of the biocompatible fluid, and the loading of the solid particles in the biocompatible fluid, the X-ray radiopacity and stability of the filler can be tailored to allow for improved discrimination of the filler within periodontal pockets, relative to adjacent soft tissue and teeth, so that the 3-D shape, volume, and depth of the pocket can be precisely and rapidly determined by X-Ray imaging. 1. A dental contrast composition comprising CaWOparticles dispersed in glycerol.2. The dental contrast composition of claim 1 , wherein the composition comprises 40 wt % suspension of CaWO.3. A composition claim 1 , comprising:particles comprising nanocellulose or diatom silica microshells coated with calcium phosphate suspended in a biocompatible fluid.4. The composition of claim 1 , wherein the calcium phosphate comprises hydroxyapatite.5. The composition of claim 3 , wherein the particles comprise microparticles claim 3 , nanoparticles claim 3 , or a combination thereof.6. The composition of claim 3 , wherein the composition is bioresorbable.7. The composition of claim 3 , wherein the particles have an X-ray radiopacity less than that of teeth or bone and greater than that of soft tissue.8. A contrast agent claim 3 , comprising:{'claim-ref': {'@idref': 'CLM-00003', 'claim 3'}, 'the composition of .'}9. The composition of claim 3 , wherein the microparticles are hollow.10. The composition of claim 3 , wherein the calcium phosphate comprises CaPO.11. The composition of claim 3 , wherein the calcium phosphate comprises Ca(PO)(OH).12. The composition ...

DENTAL IMAGING WITH PHOTON-COUNTING DETECTOR

An extra-oral dental imaging apparatus for obtaining an image from a patient has a radiation source; a first digital imaging sensor that provides, for each of a plurality of image pixels, at least a first digital value according to a count of received photons that exceed at least a first energy threshold; a mount that supports the radiation source and the first digital imaging sensor on opposite sides of the patient's head; a computer in signal communication with the digital imaging sensor for acquiring a first two-dimensional image from the first digital imaging sensor; and a second digital imaging sensor that is alternately switched into place by the mount and that provides image data according to received radiation. 116-. (canceled)17. A dental imaging apparatus for obtaining an image from a patient , the apparatus comprising:a radiation source;a first digital imaging sensor that provides, for each of a plurality of image pixels, at least a first digital value according to a count of received photons that exceed at least a first energy threshold;a mount that supports the radiation source and the first digital imaging sensor on opposite sides of an imaging area for the patient;a computer in signal communication with the first digital imaging sensor for acquiring one or more two-dimensional images from the first digital imaging sensor;a controller electrically coupled to the radiation source, the first digital imaging sensor, the mount and the computer, the controller configured to operate the dental imaging apparatus in two or more imaging modes, where the two or more imaging modes comprises a combination of volume imaging, CT imaging, panoramic imaging, or cephalometric imaging, where the two or more imaging modes are configured to use the first digital imaging sensor; andan alignment apparatus to provide alignment of the imaging area for a patient's head for obtaining the one or more images.18. The dental imaging apparatus of claim 17 , comprising at least one ...

METAL ARTIFACT REDUCTION FROM METALLIC DENTAL FILLINGS AND/OR CROWNS IN COMPUTED TOMOGRAPHY (CT) AND/OR X-RAY

A method includes planning a head scan of a subject via a console () of an imaging system (), wherein the head scan scans both jaws of the subject, including metallic dental fillings of teeth of the subject, scanning the subject including the metallic dental fillings of the teeth of the subject, via the imaging system, wherein the subject has a dental metal artifact reduction device () installed in their mouth during the scan, and generating projection data indicative of the scanned region of the head of the subject, including the metallic dental fillings of the teeth of the subject. 1. A method , comprisingplanning a head scan of a subject via a console of an imaging system, wherein the head scan scans both jaws of the subject, including metallic dental fillings of teeth of the subject;scanning the subject, including the metallic dental fillings of the teeth of the subject, via the imaging system, wherein the subject has a dental metal artifact reduction device installed in their mouth during the scan; andgenerating projection data indicative of the scanned region of the head of the subject, including the metallic dental fillings of the teeth of the subject2. The method of claim 1 , wherein the dental metal artifact reduction device positions the jaws for the scan such that the metallic dental fillings are distributed along a z-extent in which at least some of the metallic dental fillings are imaged during different data acquisition intervals.3. The method of claim 1 , wherein the dental metal artifact reduction device positions the jaws for the scan such that the metallic dental fillings are distributed along a first z-extent which is longer than a second z-extent used to scan the subject without the dental metal artifact reduction device.4. The method of claim 1 , further comprising:applying a projection domain metal artifact reduction algorithm to the projection data, thereby reducing metal artifact caused by the metallic dental fillings.5. The method of claim 1 ...

HISTORICAL SCAN REFERENCE FOR INTRAORAL SCANS

During an intraoral scan session, a processing device receives a plurality of intraoral images of a dental site. The processing device determines that a historical template of the dental site is existent and registers a first intraoral image of the plurality of intraoral images to the historical template at a first region of the dental site depicted in the historical template. The processing device may register one or more remaining intraoral images of the plurality of intraoral images to the historical template at a second region of the dental site depicted in the historical template. The first region may be separated from the second region. 1. A method comprising:receiving, by a processing device, a plurality of intraoral images of a dental site during an intraoral scan session;determining, by the processing device, that a historical template of the dental site is existent;registering, by processing device, a first intraoral image of the plurality of intraoral images to the historical template at a first region of the dental site depicted in the historical template; anddisplaying, by the processing device, the registered first intraoral image at the first region on the historical template.2. The method of claim 1 , further comprising:registering one or more remaining intraoral images of the plurality of intraoral images at a second region of the dental site depicted in the historical template.3. The method of claim 2 , further comprising:displaying the one or more remaining intraoral images at the second region on the historical template.4. A method comprising:receiving, by a processing device, a plurality of intraoral images of a dental site during an intraoral scan session;determining, by the processing device, that a historical template of the dental site is existent;registering, the by processing device, a first intraoral image of the plurality of intraoral images to the historical template at a first region of the dental site depicted in the historical ...

DENTAL ALIGNMENT SYSTEM AND METHOD FOR DENTAL IMPLANT PLACEMENT

A dental alignment guide system for dental implant placement has an anatomical guide, a tooth supported guide and a surgical guide. The system further can have an articulation piece, a prosthetic seat, an analog anatomical model and artificial teeth. The system has a plurality of implants, the implants being abutments, preferably multiunit abutments, a plurality of screws for attaching the anatomical guide to bone, pins to removably attach the various guides and the artificial teeth to the anatomical guide as assemblies during the method of practicing the invention. 1. A dental alignment guide system for dental implant placement comprises:an anatomical guide having an arch shaped structure having a first end and a second end, the arch shaped structure having a curved exterior wall and a curved interior wall extending between the ends, the interior wall formed to abut against and be secured to a portion of a labial and/or buccal side of a patient's exposed bone of the alveolar process with soft gum tissue removed or displaced by flapping, the curved exterior wall having at least one fastener openings extending through the arch shaped structure, each fastener opening configured to receive a fastener to secure the anatomical guide to the exposed bone of either the mandible or the maxilla;a plurality of fasteners, the plurality of fasteners are threaded screws to fasten the anatomical guide to the exposed bone, each threaded screw passing through one of the plurality of fastener openings of the anatomical guide;a surgical guide, the surgical guide with a curved structure having a connection; the curved structure having a plurality of openings extending from an outer surface toward a reduced bone surface of the alveolar process, the openings configured to receive implants or screws for seating the surgical guide, the connection extending from the curved structure to an end, each end of the connection being sized to be received and complimentarily fit into a connection ...

DENTAL ALIGNMENT SYSTEM AND METHOD FOR DENTAL IMPLANT PLACEMENT

A dental alignment guide system for dental implant placement has an anatomical guide, a tooth supported guide and a surgical guide. The system further can have an articulation piece, a prosthetic seat, an analog anatomical model and artificial teeth. The system has a plurality of implants, the implants being abutments, preferably multiunit abutments, a plurality of screws for attaching the anatomical guide to bone, pins to removably attach the various guides and the artificial teeth to the anatomical guide as assemblies during the method of practicing the invention. 1. A method of implanting artificial teeth comprising the steps of:providing an arch shaped anatomical guide structure having an interior wall extending from a first end to a second end, the interior wall formed to abut against and be secured to a portion of a labial and/or buccal side of a patient's exposed bone of the alveolar process with soft gum tissue removed or displaced by flapping, the curved exterior wall having at least one fastener openings extending through the arch shaped structure, each fastener opening configured to receive a fastener to secure the anatomical guide to the exposed bone of either the mandible or the maxilla;attaching the anatomical guide to the exposed bone.2. The method of further comprises the step of:providing a tooth supported guide with a “U” shaped curved structure configured to vertically fit onto a patient's existing teeth and a connection extending from the “U” shaped curved structure to an end, the connection being sized to be received and complimentarily fit into a connection aperture on the anatomical guide; andwherein the anatomical guide and the tooth supported guide when connected together form an assembly.3. The method of further comprises the step of:placing the assembly of anatomical guide and the tooth supported guide on teeth to vertically to align the interior wall of the anatomical guide to abut against the exposed bone prior to securing the anatomical ...

METHODS FOR TAKING AN IMPRESSION OR SCANNING WITHOUT REQUIRING REMOVAL OF A TEMPORARY HEALING ABUTMENT

Methods of taking an impression or scan of a patient's oral cavity without requiring removal of a healing cap coupled within the implant in the subgingival void. The method may include providing an anatomical healing cap received within the subgingival void of a given tooth position, where the anatomical healing cap is coupled into an implant in the void. A scanning body or an impression post is inserted into an open end (e.g., the hollow core) of the anatomical healing cap, in-situ, with the anatomical healing cap positioned in the subgingival void, and the implant thereunder (or thereover for a maxillary tooth position). The scanning body or impression post is used as a reference in making the impression or scan. Because this is done without requiring removal of the healing cap, further collapse of the gingival tissue surrounding the void is prevented. 1. A method of taking an impression or scan of a patient's oral cavity , the method comprising:providing an anatomical healing cap received within a subgingival void of a given tooth position, the anatomical healing cap being coupled into an implant disposed adjacent the anatomical healing cap; andinserting a scanning body or an impression post into an open end of the anatomical healing cap with the anatomical healing cap positioned in the subgingival void, such that insertion of the scanning body or impression post occurs without requiring removal of the anatomical healing cap.2. The method as recited in claim 1 , wherein the anatomical healing cap and the scanning body or impression post are keyed to one another.3. The method as recited in claim 2 , wherein the anatomical healing cap comprises one or more vertical grooves formed into an interior surface of a hollow core about which the anatomical healing cap is formed.4. The method as recited in claim 3 , wherein an exterior surface of the scanning body or impression post inserted into the anatomical healing cap includes one or more vertical protrusions which mate ...

METHOD OF MANUFACTURING SCAFFOLD FOR TREATMENT OF TOOTH EXTRACTION SOCKET AND IMPLANTATION OF DENTAL IMPLANT

Provided is a technique of allowing a dental implant to be stably placed after extraction, to be accurately placed in a tooth extraction socket, and to be stably placed in the tooth extraction socket according to implantation position and angle. A method of manufacturing a scaffold for treatment of a tooth extraction socket and implantation of a dental implant includes receiving dental implantation information of dental CT data which is previously input via a terminal of a manager; manufacturing, by using a three-dimensional (3D) printer, a 3D model comprising alveolar bones and teeth, which are distinguished therebetween, based on a medical image file that is a medical image file (DICOM file) of the dental CT data; performing virtual tooth-extraction by removing, from the manufactured 3D model, a region corresponding to a tooth in a tooth-extraction target area; and manufacturing, by using the 3D printer, a scaffold to be placed in an actual tooth extraction socket according to a shape of a tooth extraction socket that exists in the manufactured 3D model as a result of the virtual tooth-extraction, wherein, when the scaffold is manufactured, image data of the scaffold is amended to allow a guide hole for implanting the dental implant to be formed in the scaffold based on the dental implantation information. 1. A method of manufacturing a scaffold for treatment of a tooth extraction socket and implantation of a dental implant , the method comprising:receiving dental implantation information of dental computerized tomography (CT) data which is previously input via a terminal of a manager;manufacturing, by using a three-dimensional (3D) printer, a 3D model comprising alveolar bones and teeth, which are distinguished therebetween, based on a medical image file that is a medical image file (DICOM file) of the dental CT data;performing virtual tooth-extraction by removing, from the manufactured 3D model, a region corresponding to a tooth in a tooth-extraction target area ...

METHOD OF INSTALLING A FINAL DENTAL PROSTHESIS

A cradle, assembly, system and method for installing a prosthesis at a surgical site. The cradle temporarily engages the prosthesis and holds it in the correct orientation and position adjacent the surgical site. An aperture is defined in the cradle and a portion of the prosthesis is received therein. In one embodiment, the cradle, assembly and system are used to install a final dental prosthesis in a patient's mouth in a single visit to the dentist's office. A securement member pins the surgical template and subsequently the cradle to the jaw. A reinforced sub-structure on the final dental prosthesis is received in the aperture in the cradle. Cylinders attached to implants anchored in the jaw extend through holes in the sub-structure and are bonded to the prosthesis. The cradle is detached from the jaw and from the prosthesis prior to screws being re-inserted through the cylinders and into the implants. 1. A method of installing a final dental prosthesis in a patient's mouth including:taking a CT scan of the patient's head to generate data about the patient's jaw;analyzing the generated data from the CT scan;designing, on a computer, a final dental prosthesis utilizing the analyzed data; andfabricating the designed final dental prosthesis, wherein the final dental prosthesis to include a reinforced sub-structure;fabricating a cradle to conform to a region of the patient's jaw;forming an aperture in the cradle that is complementary to the sub-structure;installing one or more implants in the region of the patient's jaw;engaging the sub-structure in the aperture of the cradle;placing the cradle on the region of the patient's jaw;positioning and orienting the sub-structure and thereby the final dental prosthesis relative to the one or more implants using the cradle;engaging the sub-structure with the one or more implants;removing the cradle and engaged sub-structure from the implants and the region of the patient's jaw;disengaging the sub-structure from the cradle; ...

Customized Dental Prosthesis for Periodontal or Osseointegration, and Related Systems

A dental prosthesis to be integrated into a jaw bone cavity of a pre-identified patient. An example of a dental prosthesis includes a first manufactured portion having a surface shaped to substantially dimensionally conform three dimensionally to an undersized shape of the outer three-dimensional surface shape of a root of a tooth to be replaced, and a second manufactured portion shaped to substantially conform to the three-dimensional surface of a crown of the tooth. The outer surface of the root portion can include or be coated with a biocompatible material that is suitable to be integrated into the extraction socket and adopted by existing tissue forming the socket. 1. A method of designing and manufacturing a dental prosthesis to replace a specific natural tooth of a pre-identified patient , the dental prosthesis to be integrated into a specific receiving jawbone cavity structure of the pre-identified patient corresponding to the specific natural tooth , the dental prosthesis being a finished manufactured product prior to its insertion into the specific receiving jawbone cavity structure , the dental prosthesis comprising a root portion , the method comprising the steps of:receiving in-vivo imaging data describing a three-dimensional surface shape of at least portions of at least one of the following: the specific natural tooth, and the specific receiving jawbone cavity structure;deriving a three-dimensional surface of a virtual reduced-body root portion model from the imaging data; andforming a virtual dental prosthesis model comprising the virtual reduced-body root portion model.2. The method as defined in claim 1 , further comprising:at least partially custom-shaping a dental prosthesis material responsive to the virtual dental prosthesis model comprising the virtual reduced-body root portion model; andat least partially using the dental prosthesis material to make the dental prosthesis a finished manufactured product so that substantial portions of an outer ...

Radiation sensor with x-ray detection

The invention relates to medical imaging and, more specifically, to intraoral dental radiology. The sensor according to the invention includes a series (SPHx) of detection photodiodes for detecting the arrival of an X-ray flash. The series of photodiodes occupies the location of a central column of the matrix of pixels. The signal of the missing pixel in each row can be reconstructed by interpolating the signals provided by the adjacent pixels of the row. The detection photodiodes are identical to the photodiodes of the active CMOS pixels. They are all electrically connected on one side to a reference potential and on the other side to a detection conductor (CD) extending along the series of photodiodes. This detection conductor is connected to a detection circuit (DX) delivering a signal for triggering the capture of an image when the detected current or the variation in this current exceeds a threshold showing that an X-ray flash has been initiated.

Dental Framework and Prosthesis

A dental prosthesis and a process for design and manufacturing, incorporating a dental implant framework and veneering overlay that will be designed and manufactured simultaneously and permanently fixated to one another. 1. A unique subtract body intended to create the mating surface for a veneering overlay and a dental implant framework comprising:dimensions dependent upon the design features of the dental implant framework;where some dimensions of the unique CAD subtract body are used in creating the mating surface for the veneering overlay to mate with the dental implant framework;where some dimensions of the unique CAD subtract body are used in creating clearance gaps between the veneering overlay and dental implant framework;where the unique CAD subtract body is parametric; andwhere the design of the veneering overlay and dental implant framework is determined from digital data defining the appropriate tooth contours, gingiva contours and implant locations for the dental prosthesis.2. The unique CAD subtract body of claim 1 , where in the digital data for the design of the veneering overlay and dental implant framework have been derived from one of the following scanning a diagnostic wax up or denture tooth set up; CAD models in a virtual set up; an intraoral scan of a diagnostic wax up or denture tooth set up taken in the patient's mouth; a CT scan or series of CT scans of the patient's mouth; a CT scan or series of CT scans with the use of a radiographic stent in the patient's mouth.3. The unique CAD subtract body of claim 1 , where the veneering overlay is intended to intimately mate to at least one surface of the framework.4. The unique CAD subtract body of claim 1 , where the veneering overlay and dental implant framework can be manufactured simultaneously. Ser. No. 14/272,566 May, 2014 Schuler, et al.Not ApplicableNot ApplicableDentists are continuously searching for methods in which they can provide aesthetic and durable prostheses for their patients. ...

Dental Framework and Prosthesis

A dental prosthesis and a process for design and manufacturing, incorporating a dental implant framework and veneering overlay that will be designed and manufactured simultaneously and permanently fixated to one another. 1. A dental prosthesis for restoring the appearance and function of a patient's missing teeth comprising a veneering overlay , a dental implant framework and a series of implants and abutments adapted to be placed within a patient's mouth , wherein the dental implant framework is intended to mate to the series of implants and abutments where the design of the veneering overlay and dental implant framework are based upon digital data obtained from the patient:the dental implant framework further comprising a plurality of fittings to mate with the corresponding implants and abutments in the patient's mouth;the dental implant framework further comprising a macro retention feature to provide resistance to lateral forces;the dental implant framework further comprising a plurality of bridging structures to attach the fittings to one another;the veneering overlay further comprising a plurality of tooth contours and gingiva contoursthe design of the veneering overlay and dental implant framework being determined from the digital data defining the appropriate tooth contours, gingiva contours and implant/abutment locations for the dental prosthesis;the veneering overlay further comprises a veneering overlay mating surface and a dental implant framework structure, wherein the dental implant framework structure comprises a dental implant framework mating surface and the veneering overlay mating surface and the dental implant framework mating surface further create a predefined mating surface and a clearance gap to allow for an appropriate mating of the veneering overlay to the dental implant framework;the veneering overlay mating surface is created on the basis of a unique subtract body that is dependent upon design features of the dental implant framework ...

APPARATUS AND METHOD FOR DIGITAL RADIOGRAPHY

An X-ray apparatus for digital radiography has a rotating arm where the X-ray source and X-ray sensor cassette are oppositely mounted. The source has a primary collimator to adjust the X-ray beam size according to the selected imaging modality. The sensor cassette encloses a first X-ray detector for a first imaging mode, while a second X-ray detector usable for a second imaging mode is detachably mounted on the external side of the sensor cassette. The sensor cassette accommodates a second collimator to create a fan shaped X-ray beam for a third imaging modality. The sensor cassette has a linear motorized movement which is used for: aligning the X-ray beam with respect to the first and second detector; positioning the first detector in the first imaging mode to achieve an extended view; and scanning movement during the third imaging modality synchronized with the horizontal movement of a third X-ray detector. 111-. (canceled)12. A method for performing Digital Radiography according to multiple imaging modes , the method comprising the steps of:Positioning an object in between a radiation source and a x-ray detector using an object support and positioning system;Selecting a radiographic imaging modality and a desired region of interest;Adjusting, by one or more x-ray collimators, the shape of the x-ray beam according to the selected imaging modality;Positioning the X-ray detector in a predefined position into the X-ray beam;Generating X-ray radiation by the radiation source;Performing a movement for scanning of the object while detecting the X-ray radiation by means of the x-ray detector;Performing a readout of the x-ray detector image data, acquisition and elaboration in order to obtain a processed image or tridimensional data set of the selected region of interest according to the selected imaging mode.characterized in that{'b': 6', '23, 'i': 'b', 'in at least one imaging modality the x-ray detector is a large area x-ray detector () of rectangular dimensions which ...

METHOD AND APPARATUS FOR GENERATING A 2D PANORAMIC IMAGE

The present invention proposes a method for producing a 2D panoramic image of an oral cavity comprising the steps: A) provision of a plurality of projection images acquired during an at least partial revolution of a recording unit comprising a radiation source and an electronic image sensor about the oral cavity in a given position; B) calculation of an image including at least one anatomical feature from the plurality of projection images using a calculation rule with reconstruction parameters; C) provision of a model of the at least one anatomical feature, which describes the at least one anatomical feature in a target position in an image; D) identification of the at least one anatomical feature in the calculated image; E) determination of a deviation between an actual position of the at least one identified anatomical feature in the calculated image and the target position of the at least one anatomical feature in the model by applying a metric; F) variation of at least one of the reconstruction parameters and recalculation of at least one part of the image that shows the at least one anatomical feature using the calculation rule and the at least partially varied reconstruction parameters or variation of a pixel transformation and application of the pixel transformation to at least one part of the calculated image that shows the at least one anatomical feature, so that at least this part of the image is recalculated; G) derivation of the 2D panoramic image from the recalculated image; and H) outputting the 2D panoramic image. 1. Method for generating a 2D panoramic image of an oral cavity comprising the stepsA) Provision of a plurality of projection images acquired during an at least partial revolution of a recording unit comprising a radiation source and an electronic image sensor about the oral cavity in a given position,B) Calculation of an image including at least one anatomical feature from the plurality of projection images using a calculation rule with ...

X-RAY TOMOGRAPHY APPARATUS AND X-RAY TOMOGRAPHY METHOD

A dose setting unit generates dose control data in order to change a unit time dose of an X-ray beam with which a subject is irradiated during X-ray tomography. An imaging controller makes X-ray intensity when a center axis X-ray (irradiation axis) of an X-ray beam emitted from an X-ray generator is not orthogonal to a tomographic layer of interest relatively smaller than X-ray intensity when the center axis X-ray is orthogonal to the tomographic layer of interest. 1. An X-ray tomography apparatus comprising:an X-ray generator configured to emit an X-ray beam;an X-ray detector configured to detect the X-ray beam emitted from the X-ray generator;a support configured to support the X-ray generator and the X-ray detector;a tomographic layer-of-interest setting unit configured to set a position of a tomographic layer of interest;a turning drive unit configured to relatively turn the X-ray generator and the X-ray detector around at least a turning center axis with respect to the tomographic layer of interest;an image processor configured to generate an X-ray tomographic image indicating the tomographic layer of interest by performing image processing on a projection image generated based on an output signal output from the X-ray detector; anda controller configured to control the turning drive unit and a change in a unit time dose that is an X-ray dose with which the tomographic layer of interest is irradiated per unit time,wherein the controller is further configured to control the turning drive unit and the change in the unit time dose such that the unit time dose in at least a part of a period in which a center axis of the X-ray beam is not orthogonal to the tomographic layer of interest is relatively smaller than the unit time dose in a period in which the center axis of the X-ray beam is orthogonal to the tomographic layer of interest.2. The X-ray tomography apparatus according to claim 1 , whereinthe support includes a turning arm that supports the X-ray generator ...

METHOD OF INSTALLING A FINAL DENTAL PROSTHESIS

A cradle, assembly, system, and method for installing a prosthesis at a surgical site. The cradle temporarily engages the prosthesis and holds it in the correct orientation and position adjacent the surgical site. An aperture is defined in the cradle and a portion of the prosthesis is received therein. In one embodiment, the cradle, assembly and system are used to install a final dental prosthesis in a patient's mouth in a single visit to the dentist's office. A securement member pins the surgical template and subsequently the cradle to the jaw. A metal sub-structure on the final dental prosthesis is received in the aperture in the cradle. Cylinders attached to implants anchored in the jaw extend through holes in the sub-structure and are bonded to the prosthesis. The cradle is detached from the jaw and from the prosthesis prior to screws being re-inserted through the cylinders and into the implants. 1. A dental assembly comprising: a first wall and a second wall that are connected together by a first end and a second end;', 'the first wall and the second wall and the first end and the second end bounding and defining a surgical space that connects a top of the cradle body with a bottom of the cradle body;', "wherein the bottom of the cradle body is contoured to a portion of a bone segment of a patient's jawbone; and wherein the bottom of the cradle body is adapted to be removably positioned on the portion of the bone segment."], 'a cradle comprising a cradle body having2. The dental assembly as defined in claim 1 , further comprising a dental appliance having a dental appliance body with a top and a bottom; wherein the dental appliance body defines one or more apertures therein and each aperture is located in a position on the dental appliance body that is adapted to correspond to an implant installed on the portion of bone segment.3. The dental assembly as defined in claim 2 , wherein the top of the cradle body is contoured to conform to the bottom of the dental ...

Method, apparatus, and computer readable medium for removing unwanted objects from a tomogram

A method, apparatus, and computer readable medium for removing an unwanted object from an image volume are provided. Volumetric data of an object of study is generated in a radiographic scan. Volumetric data of the unwanted object is obtained. The two sets of volumetric data are registered in a common coordinate system. The unwanted object is removed from the volumetric data of the object of study to create modified volumetric data of the object of study. Data from voxels surrounding the removed unwanted object may be used to populate voxels corresponding to the unwanted object with interpolated data. A plurality of forward projections are performed on the modified volumetric data of the object of study, and a tomogram with the unwanted object removed is constructed.

Method and Device for Creating a Cephalometric Image

An extra-oral dental imaging system comprises an X-ray source () and an imaging device () suitable for producing multiple frames during at least part of an exposure of an object (), the imaging device () being displaced along a scanning direction (X). A method for creating a cephalometric image of a human skull comprises a step of setting said imaging device () with an active area having in an imaging plane a width extending along said scanning direction (X), said width varying along a height direction perpendicular to said scanning direction (X); a step of synchronously displacing the X-ray source () and the imaging device () along said exposure profile; and a step of registering multiple frames produced by the imaging device () during the exposure of said object () to be imaged. Using for creating a cephalometric image by digital tomosynthesis. 1. A method for creating a cephalometric image of at least part of a human skull using an extra-oral dental imaging system having a conical shape x-ray beam and no cephalometric arm , said system comprising:an X-ray source for producing a conical shape x-ray beam used to irradiate an object to be imaged;an imaging device suitable for producing multiple frames during at least part of an exposure of said object;a manipulator for displacing the imaging device along an exposure profile between multiple frames during said at least part of the exposure of said object, the manipulator permitting the movement of the imaging device along a scanning direction (X), setting said imaging device with an active area having in an imaging plane a width extending along said scanning direction (X), said width varying along a height direction (Y) perpendicular to said scanning direction (X);', 'synchronously displacing the X-ray source and the imaging device along said exposure profile;', 'modifying the conical shape of said conical shape x-ray beam during displacement of the X-ray source and the imaging device to vary along a height direction ...

METHODS OF MAKING SEMICONDUCTOR RADIATION DETECTOR

Disclosed herein is an apparatus and a method of making the apparatus. The method comprises obtaining a plurality of semiconductor single crystal chunks. Each of the plurality of semiconductor single crystal chunks may have a first surface and a second surface. The second surface may be opposite to the first surface. The method may further comprise bonding the plurality of semiconductor single crystal chunks by respective first surfaces to a first semiconductor wafer. The plurality of semiconductor single crystal chunks forming a radiation absorption layer. The method may further comprise forming a plurality of electrodes on respective second surfaces of each of the plurality of semiconductor single crystal chunks, depositing pillars on each of the plurality of semiconductor single crystal chunks and bonding the plurality of semiconductor single crystal chunks to a second semiconductor wafer by the pillars. 1. An apparatus for detecting radiation , comprising: 'wherein each of the plurality of semiconductor single crystal chunks has a first surface and a second surface, the second surface being opposite to the first surface, and the plurality of semiconductor single crystal chunks have different sizes and gaps in between, and are bonded by respective first surfaces to the first semiconductor wafer,', 'a radiation absorption layer comprising: a first semiconductor wafer, a second semiconductor wafer and a plurality of semiconductor single crystal chunks,'}wherein a plurality of electrodes are formed on respective second surfaces of each of the plurality of semiconductor single crystal chunks;and wherein the plurality of semiconductor single crystal chunks are bonded to the second semiconductor wafer by pillars.2. The apparatus of claim 1 , wherein the plurality of semiconductor single crystal chunks are cadmium zinc telluride (CdZnTe) chunks.3. A system comprising the apparatus of and a radiation source claim 1 , wherein the system is configured to perform ...

METHODS OF MAKING SEMICONDUCTOR RADIATION DETECTOR

Disclosed herein is an apparatus and a method of making the apparatus. The method comprises obtaining a plurality of semiconductor single crystal chunks. Each of the plurality of semiconductor single crystal chunks may have a first surface and a second surface. The second surface may be opposite to the first surface. The method may further comprise bonding the plurality of semiconductor single crystal chunks by respective first surfaces to a first semiconductor wafer. The plurality of semiconductor single crystal chunks forming a radiation absorption layer. The method may further comprise forming a plurality of electrodes on respective second surfaces of each of the plurality of semiconductor single crystal chunks, depositing pillars on each of the plurality of semiconductor single crystal chunks and bonding the plurality of semiconductor single crystal chunks to a second semiconductor wafer by the pillars. 1. A method for making an apparatus suitable for detecting radiation , the method comprising:obtaining a plurality of semiconductor single crystal chunks each having a first surface and a second surface, the second surface being opposite to the first surface;bonding the plurality of semiconductor single crystal chunks by respective first surfaces to a first semiconductor wafer, the plurality of semiconductor single crystal chunks forming a radiation absorption layer;forming a plurality of electrodes on respective second surfaces of each of the plurality of semiconductor single crystal chunks;depositing pillars on each of the plurality of semiconductor single crystal chunks; andbonding the plurality of semiconductor single crystal chunks to a second semiconductor wafer by the pillars.2. The method of claim 1 , wherein the plurality of semiconductor single crystal chunks are cadmium zinc telluride (CdZnTe) chunks.3. The method of claim 1 , wherein the plurality of semiconductor single crystal chunks are bonded to the first semiconductor wafer by glue or plastic ...

APPARATUS FOR HOLDING AND POSITIONING X-RAY FILM, PHOTOSTIMULABLE PHOSPHOR PLATES OR DIGITAL SENSORS WHILE TAKING DENTAL RADIOGRAPHS

A positioner arm for positioning an imaging material, an imaging material holder, an aiming device or a combination thereof is disclosed that includes at least one positioning arm having a first end and a second end, wherein each arm comprises at least two fixed arm angles and wherein at least one angle is not a 90 degree angle. Methods of obtaining non-right angle views of a patient during x-ray imaging of the patient's mouth are also disclosed that include: providing a positioner arm for positioning an imaging material, an imaging material holder, an aiming device or a combination thereof, wherein the positioner arm comprises at least one positioning arm having a first end and a second end, wherein each arm comprises at least two fixed arm angles, and wherein at least one angle is not a 90 degree angle; coupling the positioner arm with an imaging material, an imaging material holder, an aiming device or a combination thereof; and imaging the patient's mouth, wherein the imaging is taken at a non-right angle. 1. A positioner arm for positioning an imaging material , an imaging material holder , an aiming device or a combination thereof , comprising:at least one positioning arm having a first end and a second end, wherein each arm comprises at least two fixed arm angles and wherein at least one angle is not a 90 degree angle.2. The positioner arm of claim 1 , further comprising at least one extension rod claim 1 , at least one imaging material holder or a combination thereof located at or near the second end.3. The positioner arm of claim 1 , further comprising at least two extension rods located at or near the second end claim 1 , wherein the rods are designed to hold an imaging material claim 1 , imaging material holder or a combination thereof.4. The positioner arm of claim 1 , wherein the angle closest to the first end is greater than 90 degrees.5. The positioner arm of claim 4 , wherein the angle closest to the first end is at least 120 degrees.6. The ...

SYSTEM CONFIGURED TO HOLD A RADIATION SENSING DEVICE IN A VARIETY OF POSITIONS

A system is provided for use during a medical procedure. The system has at least one sensing device holder configured to hold a radiation sensing device, a ring guide, and a rod which connects the holder to the ring guide. The ring guide includes a ring having a central opening and first and second connecting portions extending outwardly therefrom. The ring defines horizontal and vertical axes which pass through an axial centerline of the ring guide. Each connecting portion has a channel which accepts the rod therethrough and which is parallel to the axial centerline. The channel of the first connecting portion intersects the horizontal axis, and is offset from the vertical axis. The channel of the second connecting portion is offset from the horizontal and vertical axes. The rod can be attached to either of the connecting portions. 1. A system configured for use during a medical procedure comprising:at least one sensing device holder comprising a support member and a retention assembly extending from the support member, the support member configured to be held between the teeth of a patient and the retention guide assembly configured to hold an associated radiation sensing device; 'a ring having opposite first and second surfaces, a central opening extending between the first and second surfaces and defining an axial centerline of the ring guide, the ring defining first and second axes which are perpendicular to each other, which pass through the axial centerline, and which are co-planar with the first and second surfaces,', 'a ring guide comprising'} 'a second connecting portion extending outwardly from the ring and being spaced from the first connecting portion by an obtuse angle, the second connecting portion having a second channel extending therethrough, the second channel being offset from the first axis by a predetermined distance along the second axis, the second channel being parallel to the axial centerline, the second channel being offset from the second ...

RADIATION IMAGING APPARATUS AND IMAGING METHOD USING RADIATION

There is provided a panoramic imaging apparatus which serves as a radiation imaging apparatus. The panoramic imaging apparatus includes an X-ray tube radiating an X-ray as a radiation, a detector outputting digital-quantity frame data corresponding to an incident X-ray, and moving means moving the pair of X-ray tube and the detector relatively to an object. The apparatus further includes means for acquiring the frame data from the detector during movement of the X-ray tube and the detector, and means for optimally focusing a portion being imaged of the object using the acquired data and producing a three-dimensional optimally focused image in which the real size and shape of the portion being imaged are reflected.

Method and Device for Creating a Cephalometric Image

Extra-oral dental method and/or apparatus embodiments according to this application can generate cephalometric imaged by digital tomosynthesis. An extra-oral dental imaging system embodiment for creating a cephalometric image of at least part of a human skull can include an X-ray source, an imaging device suitable for producing multiple frames during at least part of an exposure; a memory for registering and/or storing said multiple frames; and a manipulator for displacing the imaging device along an exposure profile between multiple frames during said at least part of the exposure of said object. The imaging device has an active area having a long dimension m and a short dimension n, wherein the aspect ratio m:n is strictly inferior to 1.5. 1. A method for creating a cephalometric image of at least part of a human skull in an extra-oral dental imaging system , said system comprising:an X-ray source for irradiating an object to be imaged;an imaging device suitable for producing multiple frames during at least part of an exposure of said object;a manipulator for displacing the imaging device along an exposure profile between multiple frames during said at least part of the exposure of said object, the manipulator permitting the movement of the X-ray source and the imaging device by means of a selective translation and selective rotation,characterized in that said method comprises the following steps:setting said imaging device with an active area having a long dimension m and a short dimension n, wherein the aspect ratio m:n is strictly inferior to 1.5;synchronously displacing the X-ray source and the imaging device along said exposure profile, said exposure profile comprising at least one substantially linear section wherein said X-ray source and said imaging device are translated while rotating in the same direction; andregistering said multiple frames produced by the imaging device during the exposure of said object to be imaged.2. A method according to wherein ...

Charging cradle for providing real-time information, and portable radiography device including same

Disclosed are a charging cradle and a portable radiography device including the same, which is capable of displaying the residual battery capacity when the portable radiography device is being charged and even when not being charged and, more specifically, displaying the possible number of times of radiography in real time by using the residual battery capacity, such that a user can exactly determine when to charge. The portable radiography device includes a radiography device main body having a rechargeable battery, a first communication unit provided in the main body to transmit battery charging state information, a charging cradle configured to receive external power to supply charging power to the battery, a second communication unit provided in the charging cradle to receive the battery charging state information from the first communication unit, and a display unit provided in the charging cradle to display the battery charging state information.

METHODS AND SYSTEMS FOR PERIODONTAL DISEASE SCREENING

Teeth are screened for periodontal disease using digitized images manipulated and annotated on a processor. A digitized radiographic image of a tooth shows locations of a bone boundary and a cemento-enamel junction (CEJ) of the tooth. The digitized radiographic image is marked on the processor with a location on the bone boundary and with a pair of CEJ points at opposite ends of the CEJ visible in the radiograph. A ratio between (a) a distance between the bone boundary location and the adjacent CEJ point as numerator and (b) a distance between the CEJ points as denominator is calculated on the processor and compared with a threshold ratio-value for a corresponding tooth from a database accessible by the processor. A calculated ratio-value which is greater than the database threshold ratio-value is indicative of periodontal disease in the tooth. The probability of the correct diagnostic decision is determined by the relative magnitude of the calculated ratio-value and the threshold ratio-value. 1. A method performed on a processor for screening a tooth for periodontal disease , said method comprising:providing a digitized radiographic image of a tooth having a tooth number according to a tooth classification system, wherein the image shows a bone boundary and a cemento-enamel junction (CEJ) of the tooth;loading the digitized radiographic image on the processor,marking the digitized radiographic image on the processor with a location on the bone boundary and a pair of CEJ points at opposite ends of the CEJ;calculating on the processor a ratio between (a) a distance between the bone boundary location and the CEJ as numerator and (b) a distance between the CEJ points which represents a width of the tooth as denominator; andcomparing the ratio-value for the tooth calculated on the processor with a threshold ratio- value for a corresponding tooth from a database accessible by the processor, where a calculated ratio-value greater than the database threshold ratio-value is ...

DENTAL IMPLANT SYSTEM AND METHOD OF USE

A dental implant system including a prosthodontic base having first and second opposing surfaces, the first surface configured to conform to and abut an edentulous ridge of a patient, the second surface having a post extending outwardly therefrom, the prosthodontic base defining at least one hole for receiving an implant. The system further including a restoration having at least one artificial tooth, the restoration defining an opening to receive the post, the restoration being attachable to the post. The system further includes an implant having a head and a body, the body of the implant insertable through the hole in the prosthodontic base and into a bone of the patient for attaching the prosthodontic base to the edentulous ridge. The dental implant system providing for efficient, minimum invasive and permanent teeth replacement for the patient. A method of providing one or more teeth replacement for a patient is also disclosed. 1. A dental implant system comprising:a prosthodontic base having first and second opposing surfaces, the first surface configured to conform to and abut an edentulous ridge of a patient, the second surface having at least one post extending outwardly therefrom, the prosthodontic base defining at least one hole for receiving an implant;a restoration comprising at least one artificial tooth, the restoration defining an opening to receive the post, the restoration being attachable to the post;an implant having a head and a body, the body of the implant insertable through the hole in the prosthodontic base and into a bone of the patient for attaching the prosthodontic base to the edentulous ridge, the head having a diameter larger than a diameter of the hole for securing the prosthodontic base to the edentulous ridge; and whereinthe dental implant system provides for efficient, minimum invasive and permanent teeth replacement for the patient.2. The dental implant system of wherein the first surface of the prosthodontic base is formed based ...

METHOD AND APPARATUS FOR ALIGNING OF CEPHALOMETRIC IMAGING DEVICE COLLIMATOR

An extra-oral imaging apparatus is intended to obtain a cephalometric image of a portion of a head of a patient. Exemplary apparatus embodiments of cephalometric functionality of such extra-oral imaging apparatus can include a cephalometric support mounted to a base of the imaging system that is configured to position a cephalometric sensor about a cephalometric imaging area so that x-rays impinge the cephalometric sensor after radiating the cephalometric imaging area. A cephalometric collimator can be mounted to a patient positioning unit to provide secondary collimation of the x-ray beam for the cephalometric sensor. Exemplary apparatus and/or method embodiments of the application relates to providing a measurable indication of alignment between a cephalometric collimator and cephalometric sensor or the extra-oral imaging apparatus, which can provide a repeatable and/or accurate alignment between a cephalometric collimator and cephalometric sensor. 1. A method for aligning a cephalometric collimator to an extra-oral imaging system , the method comprising:mounting a cephalometric imaging unit to a base system, the system base adjustable in at least one direction and configured to support an x-ray source, the cephalometric imaging unit configured to mount a cephalometric sensor, the cephalometric imaging unit comprising a cephalometric patient positioning unit including a cephalometric collimator positioned between the x - ray source and the cephalometric sensor so that x-rays impinge the cephalometric sensor after passing through an elongated aperture of the cephalometric collimator;mounting a cephalometric alignment device to the cephalometric imaging unit; andobtaining a plurality of two-dimensional x-ray projection images of the cephalometric imaging unit while controllably moving the cephalometric collimator through a plurality of positions;selecting one of the plurality of two-dimensional x-ray projection images in accordance with a prescribed alignment ...

Method and Device for Creating a Cephalometric Image

An extra-oral dental imaging system comprises an X-ray source () and an imaging device () suitable for producing multiple frames during at least part of an exposure of an object (), the imaging device () being displaced along a scanning direction (X). A method for creating a cephalometric image of a human skull comprises a step of setting said imaging device () with an active area having in an imaging plane a width extending along said scanning direction (X), said width varying along a height direction perpendicular to said scanning direction (X); a step of synchronously displacing the X-ray source () and the imaging device () along said exposure profile; and a step of registering multiple frames produced by the imaging device () during the exposure of said object () to be imaged. Using for creating a cephalometric image by digital tomosynthesis. 1. A method for creating a cephalometric image of at least part of a human skull in an extra-oral dental imaging system , said system comprising:an X-ray source for irradiating an object to be imaged;an imaging device suitable for producing multiple frames during at least part of an exposure of said object;a manipulator for displacing the imaging device along an exposure profile between multiple frames during said at least part of the exposure of said object, the manipulator permitting the movement of the imaging device along a scanning direction (X), setting said imaging device with an active area having in an imaging plane a width, extending along said scanning direction (X), said width varying along a height direction (Y) perpendicular to said scanning direction (X);', 'synchronously displacing the X-ray source and the imaging device along said exposure profile; and', 'registering said multiple frames produced by the imaging device during the exposure of said object to be imaged., 'characterized in that said method comprises the following steps2. A method according to claim 1 , wherein said active area is symmetric in ...

IMAGE-PROCESSING METHODS FOR MARKING PLAQUE FLUORESCENT REACTION AREA AND SYSTEMS THEREFOR

An image-processing method for marking plaque fluorescent reaction areas is provided, including: obtaining a first RGB image of a mouth region; obtaining a second RGB image of the mouth region; respectively converting the first RGB image and the second RGB image into a first HSV image and a second HSV image; obtaining a first average brightness value of the first HSV image and a second average brightness value of the second HSV image; normalizing the first average brightness value or the second average brightness value according the first average brightness value and the second average brightness value to obtain a normalized image; converting the normalized image into a third RGB image, and obtaining a plurality of pixel points of the dental plaque according to the third RGB image and the first RGB image or the second RGB image; and marking the pixel points in the third RGB image. 1. An image-processing method for marking plaque fluorescent reaction areas , comprising:emitting, via a first light emitter, natural light to a mouth region of a user;obtaining, via an image-capturing unit, a first RGB image corresponding to the mouth region;emitting, via a second light emitter, blue light to the mouth region;obtaining, via the image-capturing unit, a second RGB image corresponding to the mouth region;converting, via a processing unit, the first RGB image and the second RGB image into a first HSV image and a second HSV image respectively;obtaining, via the processing unit, a first average brightness value corresponding to the first HSV image and a second average brightness value corresponding to the second HSV image;normalizing, via the processing unit, one of the first average brightness value and the second average brightness value with the other one of the first average brightness value and the second average brightness value to obtain a normalized image;converting, via the processing unit, the normalized image into a third RGB image, and obtaining a plurality of pixel ...

ULTRA-FAST SCANNING X-RAY IMAGING DEVICE

Disclosed is a linear array ultra-fast scanning x-ray imaging device. The linear array x-ray imaging device is single photon sensitive, operating in frame output mode and including a pixel array Application Specific Integrated Circuit including the readout pixel array. The ASIC includes digital control logic and sufficient memory to accumulate digital output frames in various modes of operation prior to output from the ASIC, permitting advanced imaging functionalities directly on the ASIC, while maintaining a dynamic range of 16 bits and single photon sensitivity. The effective or secondary frames output from the pixel array ASIC can be tagged with user provided external triggers synchronizing the effective frames to the x-ray beam energy and/or to the movement of the x-ray source or imaged object. This enables dual energy imaging and ultra-fast scanning, without complex and costly conventional photon counting x-ray imaging sensors. The system architecture is simpler and higher performance. 1. An x-ray imaging device , comprising:a. a detector configured to detect impinging x-rays and to generate detector output signals;b. an application specific integrated circuit configured to receive said detector output signals and comprising a readout pixel array and electronics configured to produce a plurality of digital output pixel values each corresponding to a frame period;wherein said application specific integrated circuit further comprises a digital memory configured to store a resulting digital pixel value resulting from accumulation or averaging of the plurality of digital output pixel values, wherein the values correspond to at least two frame periods prior to readout of said resulting digital pixel value from said application specific integrated circuit.2. The x-ray imaging device according to claim 1 , wherein said digital memory is selected from the group consisting of a) SRAM claim 1 , b) registers claim 1 , c) FIFO claim 1 , and d) DRAM.3. The x-ray imaging ...

VIRTUALLY DESIGNING A CUSTOMIZED HEALING ABUTMENT

A method of virtually designing a customized healing abutment and a drill guide for a patient, where the method includes: obtaining a CT scan including at least part of the patient's jaw bone; virtually placing at least one implant relative to the jaw bone of the CT scan, such that a planned implant placement is defined; virtually designing: a drill guide for guiding the surgical drilling of a bore for the implant into the patient's jaw bone at the planned implant placement; and a customized healing abutment configured for shaping the soft tissue according to a target profile when arranged in the implant; where the design of the drill guide and of the customized healing abutment is at least partly based on the CT scan and on the planned implant placement. 128-. (canceled)30. The method according to claim 29 , wherein the method comprises obtaining a 3D surface scan comprising at least part of the teeth and at least part of the soft tissue of the patient's mouth.31. The method according to claim 29 , wherein the method comprises performing an alignment of the 3D internal scan and the 3D surface scan before designing the customized healing abutment and the drill guide.32. The method according to claim 29 , wherein the 3D internal scan is a preoperative CT scan obtained prior to the surgical drilling into the patient's jaw bone and/or wherein the 3D surface scan is a preoperative 3D surface scan obtained prior to the surgical drilling into the patient's jaw bone.33. The method according to claim 29 , wherein the method comprises virtually placing a final restoration for the implant.34. The method according to claim 33 , wherein the final restoration is virtually placed before virtually placing the implant.35. The method according to claim 33 , wherein the method comprises virtually designing the final restoration.36. The method according to claim 35 , wherein the design of the final restoration is at least partly based on the design of the customized healing abutment. ...

PATIENT-SPECIFIC THREE-DIMENSIONAL DENTITION MODEL

A method and system for generating a color-textured three-dimensional dental model is specific to a patient is disclosed. According to one embodiment, a three-dimensional dental model that is deficient of volumetric data for a three-dimensional anatomical landmark is obtained. A two-dimensional anatomical landmark of a two-dimensional intra-oral photograph that corresponds to the three-dimensional anatomical landmark of the three-dimensional dental model is identified. The two-dimensional intra-oral photograph is projected onto the three-dimensional dental model. The three-dimensional anatomical landmark is calculated from the projection of the two-dimensional anatomical landmark of the two-dimensional intra-oral photograph. 1. A computer-implemented method comprising:receiving a three-dimensional dental model including three-dimensional volumetric data specific to a patient;receiving a plurality of two-dimensional intra-oral photographs specific to the patient;identifying a plurality of three-dimensional anatomical landmarks of the three-dimensional volumetric data;identifying a plurality of two-dimensional anatomical landmarks of the plurality of two-dimensional intra-oral photographs that correspond to the plurality of three-dimensional anatomical landmarks;projecting the plurality of two-dimensional intra-oral photographs onto the three-dimensional dental model based on the plurality of two-dimensional anatomical landmarks that correspond to the plurality of three-dimensional anatomical landmarks; andgenerating a patient-specific three-dimensional dental model including the three-dimensional volumetric data and the plurality of two-dimensional intra-oral photographs.2. The computer-implemented method of claim 1 , further comprising:dividing the three-dimensional dental model into a plurality of sections; andprojecting the plurality of two-dimensional intra-oral photographs onto the plurality of sections of the three-dimensional dental model.3. The computer- ...

X-RAY DETECTION CIRCUIT FOR A DENTAL RADIOLOGY SENSOR

A circuit () for detecting the appearance of x-rays with a view to triggering a radiological image capture, comprising a set () of photodiodes that is connected to a ground (G), an amplifying circuit () and a capacitor (C), the amplifying circuit () comprising an amplifier (AMP) and a voltage source (GEN) and being connected, via a first input, to the output of the set () of photodiodes, the capacitor (C) being connected between the ground (G) and a second input of the amplifier (AMP), the detecting circuit () being characterized in that the amplifying circuit () is configured to carry out in succession the steps of: 1. A circuit for detecting the appearance of x-rays with a view to triggering a radiological image capture , comprising a set of photodiodes that is connected to a ground , an amplifying circuit and a capacitor , the amplifying circuit comprising an amplifier and a voltage source and being connected , via a first input , to the output of the set of photodiodes , the capacitor being connected between the ground and a second input of the amplifier , and the amplifying circuit further comprising:Means for charging the capacitor with a reference voltage generated by the voltage source during a first portion of an initializing phase of the detecting circuit;Means for isolating the second input of the amplifier from the voltage source during a second portion of the initializing phase of the detecting circuit; andA capacitor connected between the first input of the amplifying circuit and the output of the amplifier in order to integrate the current generated by the set of photodiodes during a detecting phase following the second portion of the initializing phase.2. The detecting circuit as claimed in of claim 1 , wherein the amplifying circuit further comprises a first switch connected between the first input and the output of the amplifier.3. The detecting circuit as claimed in claim 1 , wherein the amplifying circuit further comprises a second switch ...

JAW SURFACE BASED REGISTRATION

A computer-implemented method and system are provided for registering a human jaw with a volumetric computed tomography image of that jaw positioned in an image reference coordinate system and stored in a computer-readable memory. The method involves attaching a jaw marker to the jaw to establish a pose trackable jaw reference coordinate system; moving a surface sampling tool over at least one portion of the surface of the jaw while operating a pose tracking system and a computer processor to record samples in the jaw reference coordinate system indicative of locations within the at least one portion of the surface of the jaw; operating a computer processor to determine an approximate initial registration mapping; then beginning with the approximate initial registration mapping, incrementally adjust the registration mapping. Incrementally adjusting the registration mapping involves computing an edge proximity value at each sample location mapped to the image by the registration mapping. 1. A method for registering a human jaw with a volumetric computed tomography image of that jaw positioned in an image reference coordinate system and stored in a computer-readable memory , the method comprising:rigidly attaching a pose trackable jaw marker to the jaw, or to a structure in a rigid geometrical relationship to the jaw, to establish a pose trackable jaw reference coordinate system;moving a pose trackable surface sampling tool over at least one portion of the surface of the jaw while operating a pose tracking system and a computer processor to record samples in the jaw reference coordinate system indicative of locations within the at least one portion of the surface of the jaw;operating a computer processor to determine an approximate initial registration mapping; then i) mapping the samples to the image reference coordinate system using the registration mapping to provide mapped sample locations,', 'ii) for each mapped sample location, computing an edge proximity value ...

HYBRID X-RAY SYSTEM WITH DETACHABLE RADIATION SHIELD

A hybrid x-ray device for mounted and portable use. The hybrid x-ray device can include a housing, an x-ray source, a support connector, a shield connector, and an interlock. The x-ray source is coupled to the housing and configured to generate x-ray radiation. The support connector is coupled to the housing and configured to mechanically couple to a support arm. The shield connector is coupled to the housing and configured to mechanically couple to a removable radiation shield. The interlock is coupled to the x-ray source and configured to disable activation of the x-ray source when both: (a) the support connector is mechanically uncoupled from the support arm, and (b) the shield connector is mechanically uncoupled from the removable radiation shield. 1. A hybrid x-ray device for mounted and portable use , the device comprising:a housing;an x-ray source coupled to the housing and configured to generate x-ray radiation;a support connector coupled to the housing and configured to mechanically couple to a support arm;a shield connector coupled to the housing and configured to mechanically couple to a removable radiation shield; andan interlock coupled to the x-ray source and configured to disable activation of the x-ray source when both: (a) the support connector is mechanically uncoupled from the support arm, and (b) the shield connector is mechanically uncoupled from the removable radiation shield.2. The hybrid x-ray device of claim 1 , further comprising an actuator in communication with the x-ray source and configured to activate the x-ray source if the activation is enabled by the interlock.3. The hybrid x-ray device of claim 2 , wherein the interlock is further configured to enable the x-ray source to be activated via the actuator when at least one selected from the group consisting of the following conditions is satisfied: (a) the support connector is coupled to the support arm claim 2 , and (b) the shield connector is coupled to the removable radiation shield. ...

APPARATUS AND METHOD FOR RECONSTRUCTING PANORAMIC X-RAY IMAGE

The present invention provides an apparatus and method for reconstructing a panoramic X-ray image. The apparatus includes a storage unit for storing image data of multiple image layers; an image processing unit for determining a reference image layer among the multiple image layers, finding blocks that correspond to at least one block designated in the reference image layer from other image layers, selecting a clearest block by comparing image data of the corresponding blocks, and reconstructing the reference image layer by replacing the designated block in the reference image layer with the clearest block selected in any of the other image layers, if the selected block is not the same as the designated block in the reference image layer; and a display unit for displaying a panoramic image of the reconstructed reference image layer. 1. An apparatus for reconstructing a panoramic X-ray image , the apparatus comprising:a storage unit for storing image data of multiple image layers;an image processing unit for determining a reference image layer among the multiple image layers, finding blocks that correspond to at least one block designated in the reference image layer from other image layers, selecting a clearest block by comparing image data of the corresponding blocks, and reconstructing the reference image layer by replacing the designated block in the reference image layer with the clearest block selected in any of the other image layers, if the selected block is not the same as the designated block in the reference image layer; anda display unit for displaying a panoramic image of the reconstructed reference image layer.2. The apparatus of claim 1 , wherein the reference image layer is selected from among the multiple image layers.3. The apparatus of or claim 1 , wherein the reference image layer is obtained by dividing the multiple image layers into multiple regions claim 1 , selecting the clearest image layer for each region claim 1 , and combining selected ...

COMPUTED RADIOGRAPHY POSITIONING METHOD AND SYSTEM

An apparatus for obtaining an intraoral x-ray image from a patient, the apparatus has an x-ray source and a radio-frequency transceiver coupled to the x-ray source and energizable to transmit an interrogation signal, wherein the transceiver is in signal communication with four or more antennae. An intraoral image detector forms an image upon exposure to radiation received from the x-ray source. A radio-frequency transponder is coupled to the image detector and is configured to respond to the interrogation signal by transmitting a wireless response signal. A control logic processor is in communication with the transceiver and provides an output signal indicative of the spatial position of the image detector according to response signals received from the transponder at the four or more antennae. An indicator responds to the output signal by indicating the relative position of the image detector. 1. An apparatus for obtaining an intraoral x-ray image from a patient , the apparatus comprising:an x-ray source;a radio-frequency transceiver coupled to the x-ray source and energizable to transmit an interrogation signal, wherein the transceiver is in signal communication with four or more antennae;an intraoral image detector that forms an image upon exposure to radiation received from the x-ray source;a radio-frequency transponder that is coupled to the image detector and is configured to respond to the interrogation signal by transmitting a wireless response signal;a control logic processor that is in communication with the transceiver and that provides an output signal indicative of the spatial position of the image detector according to response signals received from the transponder at the four or more antennae; andan indicator that responds to the output signal by indicating the relative position of the image detector.2. The apparatus of wherein the intraoral image detector is taken from the group consisting of a photosensitive film imaging device claim 1 , a storage ...

DENTAL X-RAY SENSOR HOLDER AND DENTAL X-RAY SENSOR SHEATH THEREFOR

A dental x-ray sensor holder and sheath for affixing a sensor to a backing plate of the holder The dental x-ray sensor holder and sheath generally includes a sensor holder with a backing plate having one or more spring arms and affixed to or formed contiguously with a proximal end of a bite block of the holder It also includes a sensor sheath adapted to secure a sensor to the backing plate for X-ray acquisition. 1. A dental X-ray imaging media holder for holding a sensor for X-ray acquisitions comprising:a bite block, said bite block having a proximal end, a distal end and slots disposed therein; anda backing plate extending from the proximal end of the bite block and having one or more spring arms;wherein the spring arms are configured to project outwardly from the backing plate andwherein the spring arms exert pressure in the direction of said projection when impinged upon by an inward force.2. A dental X-ray imaging media holder according to claim 1 ,wherein the holder further comprises a channel between the backing plate and the bite block, said channel being used to receive a strap of a sheath.3. A dental X-ray imaging media holder according to claim 1 ,wherein the holder is molded from a thermoplastic such as polyethylene to allow for even and unhindered passage of X-rays therethrough.4. A dental X-ray imaging media holder according to claim 1 ,wherein the sensor is configured for anterior teeth X-ray acquisitions.5. A dental X-ray imaging media holder according to claim 1 ,wherein the sensor is configured for posterior teeth X-ray acquisitions.6. A dental X-ray imaging media holder according to claim 1 ,wherein the sensor is configured for bitewing horizontal X-ray acquisitions.7. A dental X-ray imaging media holder according to claim 1 ,wherein the sensor is configured for bitewing vertical X-ray acquisitions.8. A dental X-ray imaging media holder according to claim 1 ,wherein the sensor is configured for bitewing endodontic X-ray acquisitions.9. A Dental X- ...

DENTAL X-RAY SENSOR HOLDER

A dental x-ray sensor holder for securing an x-ray sensor to a holder using suction created between the sensor and a backing plate of the sensor holder. The dental x-ray sensor holder generally includes a bite block with a first end and a second end, a backing plate affixed to or formed contiguously with the second end of the bite block, and an opening to a cavity in the holder, wherein said cavity leads an evacuation chamber for creating a vacuum between the holder and an X-ray sensor. 1. A dental X-ray imaging media holder comprising:a bite block with a first end, a second end and apertures, said apertures configured to receive an aiming arm;a backing plate, with a first side and a second side, said backing plate affixed to or formed contiguously with the second end of the bite block; andan opening to a cavity in the holder;wherein said cavity leads to an evacuation chamber, at the second side of the backing plate, for creating a vacuum between the holder and an X-ray imaging media to secure the X-ray imaging media to the holder.2. A dental X-ray imaging media holder according to claim 1 ,wherein the backing plate has ridges or protrusions that allow for an even evacuation of air from the evacuation chamber, wherein said evacuation chamber lies between the X-ray imaging media and the backing plate.3. A dental X-ray imaging media holder according to claim 2 ,wherein the backing plate comprises a substrate and a soft material, andwherein the soft material is attached or bonded to said substrate to enhance a suction effect between said X-ray imaging media and said backing plate.4. A dental X-ray imaging media holder according to claim 3 ,wherein the soft material is selected from the group consisting of a permanent injection overmolded elastomeric material, foam tape and removable molded elastomeric sleeve.5. A dental X-ray imaging media holder according to claim 4 ,wherein the foam is a closed cell foam.6. A dental X-ray imaging media holder according to claim 1 , ...

DENTAL X-RAY SENSOR HOLDER AND DENTAL X-RAY SENSOR SHEATH THEREFOR

A dental x-ray sensor holder and sheath for affixing a sensor to a backing plate of the holder. The dental x-ray sensor holder and sheath generally includes a sensor holder with a backing plate, having one or more spring arms, and affixed to or formed contiguously with a proximal end of a bite block of the holder. It also includes a sensor sheath adapted to secure a sensor to the backing plate for X-ray acquisition. 1. A dental X-ray imaging media holder for holding a sensor for X-ray acquisitions comprising:a bite block, said bite block having a proximal end, a distal end and slots disposed therein; anda backing plate extending from the proximal end of the bite block constructed to have one or more spring arms;wherein the spring arms are separated by a clearance that extends along a fraction or whole of the length of the backing plate;wherein the spring arms are constructed to be compressed inwardly to generate an outward force for holding different sizes of sensors.2. The dental X-ray imaging media holder of claim 1 , further comprising a connecting mass wherein the connecting mass connects the backing plate to the proximal end of the bite block.3. The dental X-ray imaging media holder of claim 2 , wherein the connecting mass has bevel surfaces which are constructed to allow the spring arms to substantially move in a horizontal plane without deflecting upward or downward from said plane.4. The dental X-ray imaging media holder of claim 1 , further comprising tabs constructed to hold a sensor strap in place and/or serve as positioning means for location in an imaging procedure.5. The dental X-ray imaging media holder of claim 1 , further comprising one or more clearance structures that provide clearance for movement of a file during dental treatment6. A dental X-ray sensor sheath comprising:a protective cover for housing a sensor, the protective cover having a first edge and a second edge;a strap attached to the protective cover at the first and second edges; anda ...