СТОМАТОЛОГИЧЕСКАЯ ПЕЧЬ

Изобретение относится к стоматологической печи и способу управления стоматологической печью. Стоматологическая печь содержит верхнюю часть печи, включающую камеру обжига с дном для размещения части для восстановления зубов, установленный с возможностью поворота на печи или рядом с ней оптический датчик, выход которого соединен с устройством оценки с возможностью записывания изображения части для восстановления зубов, и/или муфеля, и/или прессующего плунжера, и/или носителя продукта для обжига, в частности размеров, и/или их формы, и/или их положения, и передачи его на устройство управления, посредством которого на основании этой информации управляют обработкой объектов в стоматологической печи и/или выводят изображение на дисплей. Раскрыт также способ управления стоматологической печью с помощью упомянутого оптического датчика и управляющего устройства. Обеспечивается повышение качества продукта, повышение безопасности и упрощение работы печи. 2 н. и 14 з.п. ф-лы, 11 ил.

СПОСОБ ПОЛУЧЕНИЯ СТОМАТОЛОГИЧЕСКОГО ИНСТРУМЕНТА

Группа изобретений относится к области медицины, предназначена для использования в стоматологии и включает способ получения стоматологического инструмента, стоматологический инструмент, сконструированный для использования дантистом, набор накладок, подлежащих использованию дантистом (варианты) и способ подготовки зуба для обработки (варианты). Способ получения содержащего накладку стоматологического инструмента, сконфигурированного для использования дантистом с по меньшей мере одним стоматологическим режущим инструментом при удалении структуры зуба из зуба содержит стадии: определения накладки, соответствующей указанному зубу и соответствующей по меньшей мере части соседнего зуба указанного зуба; моделирования предварительно определяемых горизонтальных, вертикальных и наклонных движений, которые должен повторить по меньшей мере один стоматологический режущий инструмент для того, чтобы удалить по меньшей мере часть предварительно определяемой части структуры зуба, подлежащей удалению; определения ...

Устройство трехмерного проектирования восстановления зуба, способ трехмерного проектирования восстановления зуба и машиночитаемый носитель информации

Группа изобретений относится к медицинской технике, а именно к средствам проектирования восстановления зуба. Устройство трехмерного проектирования восстановления зуба характеризуется выполнением в виде по меньшей мере одной компьютерной системы и включает блок генерирования и визуализирования трехмерной модели залечиваемого зуба, выполненный с возможностью объединения по меньшей мере одной части индивидуальной цифровой информации о залечиваемом зубе со статистической параметризованной геометрической моделью типа залечиваемого зуба, блок генерирования и визуализирования восстановления смоделированного зуба, выполненный с возможностью интеграции указанного восстановления в трехмерную модель зуба посредством введения изображения слепка зуба, или посредством выбора, позиционирования и регулировки коронки из набора коронок, или посредством введения зеркального отражения коронки симметричного зуба пациента, или посредством использования статистической параметризованной геометрической модели для ...

КОНТРОЛИРУЕМЫЙ СПОСОБ ПОДГОТОВКИ СПАИВАЕМЫХ ПОВЕРХНОСТЕЙ НЕСЪЕМНЫХ ЗУБНЫХ ПРОТЕЗОВ

Изобретение относится к области медицины и может быть применено в ортопедической стоматологии. Контролируемый способ подготовки спаиваемых поверхностей несъемных мостовидных зубных протезов включает припасовку отлитой промежуточной части мостовидного протеза на модели. На штампованной коронке мостовидного зубного протеза кисточкой, пропитанной Pico-mark, или белым карандашом GIOCONDA WHITE CHALK по контуру отлитой промежуточной части отмечают площадь будущей пайки промежуточной части с коронкой, затем контактную сторону коронки зачищают карборундовой головкой, выходя на 1,0 мм за границу отмеченной площади. Контактную сторону коронки с отступом на 1,0-1,5 мм от десны не зачищают. Изобретение позволяет улучшить качество процесса спайки штамповано-паянных мостовидных протезов, уменьшить расход припоя и абразивных инструментов, сэкономить время работы зубного техника и электроэнергию.3 ил.

СПОСОБ ИЗГОТОВЛЕНИЯ ДЕТАЛЕЙ ЗУБНОГО ИМПЛАНТАТА

Изобретение относится к области медицины, а именно к ортопедической стоматологии, и может быть использовано при изготовлении каркаса протеза с различным количеством искусственных зубов в условиях стоматологических клиник и зуботехнических лабораторий. Способ изготовления корпуса зубного имплантата из циркония включает этап выполнения поверхностного слоя из гидроксида циркония с более низкой твердостью, чем твердость циркониевой основы, путем облучения поверхности имплантата лазерным излучением. Перед лазерным облучением имплантат закрепляют на торце вращающегося вала электродвигателя, и в процессе облучения равномерно вращают под лучом лазера. При этом в процессе облучения имплантата его поверхность непрерывно обрабатывают водяным паром. Затем по истечении указанного времени перед установкой имплантата пациенту на поверхность имплантата, в его поры и микротрещины, наносят лекарственное покрытие путем помещения имплантата в капсулу, которую заполняют лекарственным раствором или биологически ...

ПРОТЕТИЧЕСКАЯ ПРОКЛАДКА ДЛЯ ЛЕЧЕНИЯ ПАТОЛОГИЙ ВИСОЧНО-НИЖНЕЧЕЛЮСТНОГО СУСТАВА

Полезная модель относится к медицине, в частности к челюстно-лицевой хирурги и хирургической стоматологии, и может быть использована для консервативно-ортопедического лечения переломов мыщелкового отростка нижней челюсти, а также для лечения заболеваний, связанных с ограниченным открыванием рта и тугоподвижностью в височно-нижнечелюстных суставах (ВНЧС). Протетическая прокладка для лечения патологий височно-нижнечелюстного сустава, выполненная из медицинского пластика в виде прямоугольного элемента изогнутой формы со сглаженными краями для установки между молярами верхней и нижней челюстей, содержащая лигатуру для фиксации к шине, и выполнена с учетом размера зубов и зубных рядов с шириной от 1,5 до 2 см, длиной от 2 до 2,5 см и толщиной стенки 1 мм для установления высоты межзубного окклюзионного разобщения на основе рентгенологического обследования. Технический результат - обеспечение стабильного разобщения окклюзии для предсказуемой по величине декомпрессии височно-нижнечелюстного сустава ...

Стоматологический массажер

Полезная модель относится к области медицинской техники, в частности к средствам гигиены, используемым в стоматологии, и может быть использована для гигиенического ухода за зубами у детей. Стоматологический массажер выполнен из резины в виде параллелепипеда высотой 18-20 мм с параллельными прорезями по вертикальной оси. Массажер имеет в поперечном сечении Х-образную форму с закругленными по радиусу 3-5 мм выступами и с закруглениями по радиусу 1,5 мм в основаниях прорезей. Глубина прорезей от верхней точки выступа составляет 5-8 мм. Боковые поверхности параллелепипеда имеют закругленные выемки при ширине массажера по центру 10-12 мм. Прорези и выемки массажера имеют рифленую поверхность в виде углублений и выступов в продольном направлении. Технический эффект: повышение уровня гигиены за счет лучшей очищающей способности стоматологического массажера и тем самым снижение индекса эффективности гигиены рта (РНР) у детей в 1,6 раза. 2 ил., 1 табл.

Разборная штифтовая культевая вкладка

Использование: медицина, ортопедическая стоматология. Сущность: разборная штифтовая культевая вкладка представляет собой объединенную коронковую часть с основным штифтом и дополнительным корневым штифтом. При этом коронковая часть, обращенная к твердым тканям зуба, содержит круговые уступы в области корневых каналов, а дополнительный штифт в коронковой части штифтовой культевой вкладки имеет круговой уступ. Разборная штифтовая культевая вкладка выполнена из диоксид циркониевого конструкционного материала Coritec Zr Disc (imes-icore GmbH, Германия) методом фрезерования. Технический результат: повышение функциональной эффективности штифтовой культевой вкладки при лечении пациентов с приобретенными дефектами твердых тканей зубов многокорневых зубов с непараллельными корневыми каналами; биосовместимость к органам и тканям полости рта; снижение возможного патологического воздействия сплавов металла на организм; создание конструкции высокой точности; нормализация биомеханического распределения ...

Телескопический фиксатор для съемных зубных протезов

Использование: полезная модель относится к медицине, а именно к стоматологии, в частности - к зубному протезированию. Технический результат: - повышение надежности фиксации протезных конструкций. Сущность: в устройстве для фиксации съемного протеза, выполненного в виде телескопического колпачка из диоксида циркония по технологии фрезерования CAD/САМ, наружные поверхности колпачка имеют сферообразную форму, а внутренняя полость колпачка - поверхность, выполненную повторяющей сопряженные поверхности зубов или протезов. 1 ил.

Медицинское устройство с поверхностью, содержащей оксид галлия

Группа изобретений относится к медицинскому устройству, предназначенному для контакта с живой тканью, включающему основу с противомикробным поверхностным слоем, который включает оксид галлия с содержанием галлия в слое в количестве по меньшей мере 5 ат. %, и способу его получения. Способ получения медицинского устройства заключается в обеспечении основы с поверхностью и нанесении соединения галлия на указанную поверхность с образованием слоя, включающего оксид галлия с содержанием галлия в количестве по меньшей мере 5 ат. %. Таким образом, группа изобретений позволяет достичь противомикробный эффект поверхности, а также ингибировать образование биопленки на поверхности медицинского устройства, что может снижать риск возникновения инфекции, например, вокруг зубного имплантата. 2 н. и 19 з.п. ф-лы, 2 ил., 6 табл.

СПОСОБ ПРОТЕЗИРОВАНИЯ ЗУБА

Изобретение относится к медицине, а именно к стоматологии, и предназначено для использования при лечении поддесневых дефектов зубов глубже 5 мм от уровня краевой десны с последующим протезированием. Лечение осуществляют в два этапа. На первом этапе осуществляют доступ к области зуба на 5-7 мм ниже уровня десны, для чего на первом этапе: последовательно повторяют стадию (а), во время которой по меньшей мере один раз оборачивают ленту, выполненную из политетрафторэтилена или покрытую политетрафторэтиленом, по периметру зубодесневой борозды, формируя кольцо, и стадию (б), во время которой давлением на верх упомянутого кольца заглубляют его в зубодесневую борозду на требуемую глубину и повторяют стадии (а) и (б) таким образом, чтобы заполнить пространство между зубом и десной на глубину 5-7 мм ниже уровня десны сплошным слоем. Затем извлекают упомянутую ленту. На втором этапе: устанавливают временную реставрацию для формирования расширенного контура десны на период 14-60 дней, извлекают временную ...

Способ количественной оценки загрязнения поверхности пострезекционного съемного зубочелюстного протеза-обтуратора

Изобретение относится к области медицины, а именно к стоматологии, и может быть использовано при оценке гигиенического состояния протезов-обтураторов, изготовленных после хирургической операции резекции верхней челюсти. Предложен способ количественной оценки загрязнения поверхности пострезекционного съемного зубочелюстного протеза-обтуратора зубными отложениями, включающий окрашивание внутренней поверхности зубного протеза, прилежащей к протезному ложу. В способе окрашенные пятна налета на поверхности протеза очерчивают водорастворимым маркером, покрывают поверхность протеза матирующим спреем для сканирования, сканируют в 3D-принтере, преобразуют полученные сканы в 3D-модель, затем вырезают выделенные зоны обсемененности из модели и получают три группы сканированных элементов. Затем с помощью компьютерной программы обработки 3D-объектов автоматически определяют соотношение площади загрязненной поверхности зубочелюстного протеза к общей площади всей ортопедической конструкции и определяют ...

ЗУБНОЙ ИМПЛАНТАТ, ИНСТРУМЕНТ ДЛЯ ВСТАВКИ ЗУБНОГО ИМПЛАНТАТА И КОМБИНАЦИЯ ЗУБНОГО ИМПЛАНТАТА И ИНСТРУМЕНТА ДЛЯ ВСТАВКИ

Группа изобретений относится к медицине, а именно к стоматологии, и предназначена для использования при дентальной имплантации. Для внедрения в костную ткань используют зубной имплантат (1), содержащий: центральную часть (2), имеющую апикальный конец (4), корональный конец (6) и внешнюю поверхность (8), проходящую вдоль продольного направления между указанным апикальным концом (4) и указанным корональным концом (6); и по меньшей мере одну резьбу (12), расположенную по меньшей мере на резьбовой части указанной внешней поверхности (8), которая должна иметь предпочтительные свойства в отношении первичной и вторичной стабильности. В соответствии с данным изобретением это достигается тем, что центральная часть (2) содержит: сформированную зону (22) центральной части, предпочтительно рядом с указанным корональным концом (6), причем в сформированной зоне (22) центральной части поперечное сечение указанной центральной части (2) имеет ряд основных направлений, в которых радиус, измеряющий расстояние ...

СПОСОБ ПРЕДОПЕРАЦИОННОГО ПЛАНИРОВАНИЯ НАКОСТНОГО ОСТЕОСИНТЕЗА ДЛИННЫХ ТРУБЧАТЫХ КОСТЕЙ

Изобретение относится к медицине, а именно к травматологии и предназначено для предоперационного планирования накостного остеосинтеза длинных трубчатых костей. Предложен способ предоперационного планирования накостного остеосинтеза длинных трубчатых костей, включающий выполнение пациенту компьютерной томографии поврежденной кости, математическую компьютерную обработку полученных данных, изготовление стереолитографической модели. Дополнительно выполняют компьютерную томографию аналогичной неповрежденной кости противоположной конечности. С помощью программного обеспечения «Автоплан» обрабатывают данные, создавая трехмерные модели интактной кости и отломков поврежденной кости. С помощью программного обеспечения «Meshlab» создают зеркальную модель интактной кости и совмещают ее последовательно с моделями отломков поврежденной кости, сопоставляя их между собой и нанося на зеркальную модель интактной кости контур линии перелома. На основе полученной модели на 3D принтере изготавливают полноразмерный ...

Способ фиксации реставраций из диоксида циркония после экструзии зуба

Изобретение относится к стоматологии и может быть использовано при протезировании зубов. Осуществляют изготовление и примерку коронки, обработку полости коронки порошком оксида алюминия, обработку и высушивание препарированных зубов, чистку и финишную полировку коронки, установленной на девительный зуб. Коронку выполняют с полированной шейкой размер, которой равен разности между глубиной зондирования и средним размером сулькуса соседних зубов. Проводят татальное травление зуба. Наносят на зуб бондинговый агент не допуская полимеризации компонентов бондингового агента и высушивают бондинговый агент стерильным хирургически слюноотсосом. Обработку полости коронки проводят порошком оксида алюминия с размером частиц 50 мкм, под давлением 1,1-1,3 атм с расстояния 12-15 мм. Обработку внешней поверхности коронки проводят универсальным адгезивом. Затем закрепляют коронку на девительном зубе самоадгезивным цементом двойного отверждения, введенным в полость коронки в жидкой фазе. Смывают цемент в ...

Способ создания замыкающего клапана и окантовка краев жесткого базиса для полных съемных протезов

Изобретение относится к медицине, а именно к стоматологии, а именно к ортопедической стоматологии. Формируют замыкающий клапан для полных съемных протезов путем окантовки краев жесткого базиса. При этом осуществляют этапы, на которых снимают два оттиска с корригирующей массой. После застывания корригирующей массы для образования дополнительного цоколя, отступая с вестибулярной стороны 5 мм от нижней переходной складки, край оттиска окантовывают полоской базисного воска не больше 0.5 см. Отливают гипсовую анатомическую модель челюсти и изготавливают жесткий базис с прикусным шаблоном. Затем бюгельный воск прокладывают по краю жесткого базиса и отдавливают его по гипсовой модели, при этом для формирования каплевидного края контролируют соприкосновение края жесткого базиса вплотную с гипсовой моделью. Затем с краев жесткого базиса удаляют излишки воска, и выполняют горячую полимеризацию. Способ за счет формирования индивидуального каплевидного края на жестком базисе позволяет повысить точность ...

Способ коррекции прикуса

Группа изобретений относится к медицине, а именно к хирургической стоматологии, и может быть использована при коррекции прикуса пациента. Проводят сбор анамнеза, осмотр полости рта пациента, выполняют фотопротокол, проводят рентгенологическое исследование и получают оттиски зубных рядов. Полученные данные загружают в личный кабинет врача и создают виртуальный плана лечения пациента. Затем на цифровой модели пациента осуществляют последовательное перемещение зубов и коррекцию прикуса, а затем на необходимых зубах с язычной/небной стороны размещают несъемный ретейнер в виде балки-коннектора. Балку-коннектор соединяют с аттачментами, каждый из которых содержит корпус в форме конического шипа и опорную площадку в форме диска. Диск соединен за единое целое с основанием корпуса, выполненного для соединения с балкой-коннектором. Корпус и опорная площадка снабжены ребрами жесткости, расположенными на образующих конического шипа и на образующих диска. Ребра жесткости корпуса размещены напротив поверхностей ...

Медицинское устройство с поверхностью, содержащей металл противомикробного действия

Группа изобретений относится к области медицины, в частности к медицинскому устройству, имеющему поверхностный слой, содержащий металл противомикробного действия, и к способу получения такого устройства. Медицинское устройство, предназначенное для контакта с живой мягкой тканью, включающее основу, имеющую поверхность контакта с мягкой тканью, включающую поверхностный слой, содержащий одно или более соединений галлия и/или висмута, причем указанное соединение галлия и/или висмута также включает титан и выбрано из группы, состоящей из нитрида галлия и титана, нитрида висмута и титана, галлий-титана, висмут-титана, галлий-висмут-титана и нитрида галлия, висмута и титана. А также предложен способ получения медицинского устройства, который включает: а) обеспечение основы с поверхностью и б) нанесение соединения галлия и/или висмута и титана или нитрида титана на указанную поверхность с образованием слоя. Группа изобретений обеспечивает получение медицинского устройства, которое содержит соединение ...

Способ использования динамического виртуального артикулятора для имитационного моделирования окклюзии при выполнении проектирования стоматологических протезов для пациента и носитель информации

Группа изобретений относится к медицинской технике, а именно к средствам для динамической виртуальной артикуляции. Одним из изобретений является способ использования динамического виртуального артикулятора для моделирования окклюзии при изменении исходного положения нижней челюсти, ее фрагментов, положения зубов относительно друг друга, положения и формы искусственных зубов, реализуемый при помощи компьютера. Способ включает следующие стадии: обеспечение виртуального артикулятора, содержащего виртуальную трехмерную модель верхней челюсти и зубного ряда и виртуальную трехмерную модель нижней челюсти и зубного ряда, повторяющие верхнюю челюсть и верхние зубы, и нижнюю челюсть и нижние зубы пациента соответственно, и обеспечение имитационных движений виртуальной верхней челюсти и виртуальной нижней челюсти относительно друг друга для имитационного моделирования динамической окклюзии, при которых могут возникать проницаемые или непроницаемые контакты между зубами виртуальной верхней и виртуальной ...

Способ изготовления частичного съёмного пластиночного зубного протеза

Изобретение относится к медицине, а именно ортопедической стоматологии, и может быть использовано для изготовления частичного съемного пластиночного зубного протеза. Получают оттиски зубных рядов и челюстей. Изготавливают гипсовые модели, моделируют зубной протез. Заменяют воск на пластмассу и получают готовый протез. При этом получают оптические оттиски зубных рядов и челюстей с помощью интраорального сканера PlanScan (Planmeca, Финляндия). Трехмерное оптическое изображение лица получают при помощи лицевого сканера faceSCAN III (Германия). Используя совмещенные изображения цифровых моделей челюстей и оптического изображения лица в программе Exocad, печатают модели верхней и нижней челюстей из полимерных смол на 3D принтере FormLabs (США) с последующим дублированием этих моделей из супергипса для изготовления на них съемного частичного пластиночного зубного протеза. Моделируют частичный съемный протез в программе Exocad, печатают прототип частичного съемного пластиночного протеза в виде ...

ЛИТИЕВО-СИЛИКАТНЫЕ СТЕКЛОКЕРАМИКА И СТЕКЛО С ОКСИДОМ ДВУХВАЛЕНТНОГО МЕТАЛЛА

... 1. Литиево-силикатная стеклокерамика, включающая оксид двухвалентного металла, выбранный из MgO, CaO, SrO, BaO, ZnO и смесей таковых и включающая, по меньшей мере, 12,1 масс.% LiO.2. Стеклокерамика по п. 1, за исключением литиево-дисиликатной стеклокерамики, которая включает, по меньшей мере, 6,1 масс.% ZrO.3. Стеклокерамика по п. 1 или 2, за исключением литиево-дисиликатной стеклокерамики, которая включает, по меньшей мере, 8,5 масс.% оксида переходного металла, выбранного из группы, состоящей из оксидов иттрия, оксидов переходных металлов, имеющих атомный номер 41-79 и смесей этих оксидов.4. Стеклокерамика по п. 1 или 2, которая включает менее 1,0, в частности, менее 0,5 масс.%, и, предпочтительно, менее 0,1 масс.% KO, и, наиболее предпочтительно, являющаяся, по существу, свободной от KO.5. Стеклокерамика по п. 1 или 2, которая включает менее 1,0, в частности, менее 0,5 и, предпочтительно, менее 0,1 масс.% KO, NaO и смесей таковых.6. Стеклокерамика по п. 1 или 2, которая включает менее ...

СПОСОБ ТРЕХМЕРНОГО ПРОЕКТИРОВАНИЯ ЛЕЧЕНИЯ КОРНЕВОГО КАНАЛА ЗУБА (ВАРИАНТЫ) И УСТРОЙСТВО ТРЕХМЕРНОГО ПРОЕКТИРОВАНИЯ ЛЕЧЕНИЯ КОРНЕВОГО КАНАЛА ЗУБА (ВАРИАНТЫ), КОМПЬЮТЕР И МАШИНОЧИТАЕМЫЙ НОСИТЕЛЬ ИНФОРМАЦИИ

... 1. Способ трехмерного проектирования лечения корневого канала зуба, включающий генерирование и визуализирование трехмерной модели залечиваемого зуба посредством объединения по меньшей мере одной части индивидуальной цифровой информации о зубе со статистической параметризованной геометрической моделью каждого типа зуба, проектирование и/или моделирование лечения корневого канала на сгенерированной трехмерной модели зуба, прием качественных и/или количественных данных обратной связи относительно результатов проектируемого или моделируемого лечения на трехмерной модели и выбор или определение оптимального подхода к лечению корневого канала.2. Способ по п. 1, в котором в трехмерную модель включают пульпарную камеру и корневые каналы.3. Способ по п. 2, в котором тип зуба выбирают из следующих типов: верхние или нижние резцы, клыки, премоляры и моляры.4. Способ по любому из пп. 1-3, в котором трехмерную модель получают по черно-белым двумерным изображениям зуба пациента и по трехмерной информации ...

СТЕКЛОКЕРАМИЧЕСКИЙ МАТЕРИАЛ НА ОСНОВЕ ДИСИЛИКАТА ЛИТИЯ, СПОСОБ ЕГО ПОЛУЧЕНИЯ И ПРИМЕНЕНИЕ

... 1. Стеклокерамический материал на основе дисиликата лития, имеющий следующий состав:от 55 до 70 вес.% SiO,от 10 до 15 вес.% LiO,от 10 до 20 вес.% стабилизатора, выбираемого из группы, состоящей из ZrO, HfOили их смеси,от 0.1 до 5 вес.% KO,от 0.1 до 5 вес.% AlO,от 0 до 10 вес.% добавок, выбираемых из группы, состоящей из оксида бора, оксида фосфора, фтора, оксида натрия, оксида бария, оксида стронция, оксида магния, оксида цинка, оксида кальция, оксида иттрия, оксида титана, оксида ниобия, оксида тантала, оксида лантана и их смесей, а такжеот 0 до 10 вес.% красителей.2. Стеклокерамический материал на основе дисиликата лития по п.1, отличающийся тем, что красители представляют собой окрашивающие стекло оксиды и/или пигменты.3. Стеклокерамический материал на основе дисиликата лития по п.2, отличающийся тем, что окрашивающие стекло оксиды выбирают из группы оксидов железа, титана, церия, меди, хрома, кобальта, марганца, селена, серебра, индия, золота, редкоземельных металлов, в частности, неодима ...

Проверочный регистратор прикуса

Изобретение относится к медицине, а именно к ортопедической стоматологии. Проверочный регистратор прикуса выполнен путем нанесения на каркас ортопедической конструкции окклюзионных регистрационных точек с помощью жидкотекучего композита светового отверждения, быстротвердеющей пластмассы или беззольной самоотверждаемой пластмассы на загипсованных в артикуляторе рабочих моделях. Если ортопедическая конструкция включает не более 4 зубных единиц, наносят две окклюзионные точки, от 5 до 8 зубных единиц - три окклюзионные точки, а от 8 зубных единиц - не менее четырех окклюзионных точек. Регистратор прикуса выполнен с возможностью контроля высоты прикуса при припасовке ортопедических конструкций в полости рта во время их примерки и коррекции окклюзии для последующего этапа нанесения керамики. Достигается возможность дополнительной проверки правильности прикуса на рабочих моделях и в полости рта перед нанесением финального керамического слоя для создания комфортной для пациента жевательной эффективности ...

СПОСОБ ЛЕЧЕНИЯ ГАЙМОРИТА

Изобретение относится к медицине, а именно к хирургической стоматологии, и может быть использовано для стимуляции остеогенеза и лечения или профилактики гайморита. Лечение пациентов, имеющих установленный скуловой имплантат, проходящий через гайморовую пазуху, заключается в установке электродов, связанных с полюсами внешнего источника электрического тока, на тело пациента и подаче электрических импульсов определенной силы тока со сменой их полярности в течение заданного периода времени. Один электрод через прослойку, насыщенную физиологическим раствором, устанавливают в ноздрю пациента, со стороны установки скулового имплантата, проходящего через гайморовую пазуху. Второй электрод подключают непосредственно к указанному скуловому имплантату и/или установленному на имплантате протезу зуба через встроенный в него сквозной металлический штифт, имеющий гальванический контакт с имплантатом. Для пациентов с массой тела до 75 кг обеспечивают величину силы тока до 5 мА, а для пациентов с массой ...

DENTALPROTHESE

Life-extension method for metallic dental components

The method increases resistance to fatigue of components subject to vibratory load by shot-blasting. Steel or glass balls can be used of diameter between 400 and 600 microns, and at a pressure of 1 to 10 bar for 30 to 60 seconds. The work can be at between 10 and 40 mm from the nozzle, and can be rotated during blasting.

Ortungsvorrichtung zur Ortung eines mobilen Hilfsmittels und mobiles Hilfsmittel

Ortungsvorrichtung zur Ortung eines mobilen Hilfsmittels für den menschlichen Körper, insbesondere zur Ortung eines mobilen Dentalhilfsmittels oder zur Ortung eines mobilen Wahrnehmungshilfsmittels, wobei an zumindest einem Aufnahmeelement (2) des Hilfsmittels zumindest eine Sendevorrichtung (3) fixiert ist, wobei zumindest eine Empfangsvorrichtung (4) vorgesehen ist und wobei eine Ortung des Hilfsmittels durch Empfang eines von der Sendevorrichtung (3) ausgesendeten Ortungssignals durch die Empfangsvorrichtung (4) sowie durch Signalisierung des Empfangs erfolgt.

Verfahren zur Herstellung von Zweischichtenprothesen

Self-adhesive, partly perforated metal foil, to be used in production of model of artificial teeth

The self adhesive foil normally used in the production of a model for artificial teeth is made of plastic, which is often to soft for the purpose and does not resist the heat created when the model is treated with steam. The new design of a self-adhesive foil (1) is made of metal and can be provided with several openings (2) if required. It can be either produced in the exact size of the basic plate or slightly smaller as preferred by the dental technician.

KOPIERFRÄSEINRICHTUNG ZUR HERSTELLUNG VON INSBESONDERE ZAHNTECHNISCHEN WERKSTÜCKEN

Blank-Halter einer Dentalfräsmaschine

Die Erfindung betrifft einen Blank-Halter einer Dentalfräsmaschine, mittels welchem ein Blank (1) befestigbar ist, wobei der Blank (1) eine flachzylindrische Form mit einer Mantelfläche (2), einer Grundfläche (3) sowie einer Deckfläche (4) aufweist, wobei an den Übergängen von Mantelfläche (2) zu Grundfläche (3) und von Mantelfläche (2) zu Deckfläche (4) jeweils eine radial umlaufende Winkelnut (5) ausgenommen ist und wobei die beiden Winkelnuten (5) jeweils eine axiale Ringfläche (6) aufweisen, aufweisend einen Grundkörper (7), ein Radialspannmittel (8) sowie ein Befestigungsmittel (9), wobei der Grundkörper (7) eine halbkreisförmige Aufnahmekontur (10) aufweist, welche mit einem ersten Mantelflächenabschnitt (11) des Blanks (1) korrespondiert und in welche der Blank (1) werkzeuglos einsetzbar ist, wobei die halbkreisförmige Aufnahmekontur (10) eine Eingriffskontur (12) aufweist, welche einen abschnittsweisen Formschluss zu der radial umlaufenden Winkelnut (5) ausbildet und wobei der Grundkörper ...

Verfahren zur Verhuetung von Faeulnisbildung zwischen Gaumen und Gebissplatte

Befestigungsanker fuer kuenstliche Zaehne

Gas-Gluehofen fuer zahntechnische Zwecke

Verfahren und Vorrichtung zur Lagensicherung von in einen oder mehrere Zahnstuempfe einzusetzenden Haltestiften fuer Zahnersatzstuecke

Method of manufacturing dentures from thermoplastic

The method for manufacturing dentures out of thermoplastic involves using different expanding elastic and fixed mass plastics. The shrinkage of the plastic will be uniform and regulated so that it can reach a registered accuracy. The possible torsion through contraction of the different lamination strengths is a possible countermeasure against the above happening. The torsion in the dentures may cause a stress in them and the linear contraction may result in a mould magnification for compensation purposes. The hollow moulds that may be formed from the magnifications may produce the anatomical model in a shorter time.

Improvements in and relating to artificial teeth

... 137,084. Plant, E. A. Dec. 16, 1918. Teeth, artificial.-An interchangeable artificial tooth a, Figs. 1 and 2, is formed with a circular or other hole b and an opening c extending for part or the whole of the depth of the hole and formed with a flared mouth d. A pest e, Fig. 5 or 6, is adapted to fit the hole b, and is formed with a projection f of such dimensions as to leave channels between the tooth and the projection. The channels are ultimately filled with the vulcanite, cast metal, or solder of the denture. The tooth, with its post, is first attached to a wax model of the denture or is secured by wax to a metal dental plate and is then removed, leaving the post in position, during the vulcanizing, casting, or soldering operations. The projection f of the post becomes reinforced by the vulcanite or metal so as completely to fill the opening c at its mouth d, and the tooth is then cemented in place. Fig. 3 shows the invention applied to another form of tooth, and Fig. 8 shows a post ...

Improved Fastener or Rivet for Securing the Suction Disks to Dental Plates.

... 6386. Pochwadt, A. March 18, 1912, [Convention date]. Teeth, artificial.-A rivet for securing a suction disk to a dental plate is formed by bending a base-metal blank B, Fig. 1, into the form shown in Fig. 5 and covering the head with a thin plate P of precious metal. A metal or other core C is inserted into the slit hollow cylinder formed by the shanks S to prevent entry of rubber during the moulding of the plate. The ends of the shanks S are preferably turned outwards to increase the hold of the rivet in the plate.

Means for releasably securing a dental prothesis

... 624,756. Artificial teeth. SEVEILHAC, F., SEVEILHAC, P., CAZENEUVE, L., and CATHARINA, P. June 4, 1947, No. 14812. Convention date, June 4, 1946. [Class 81(ii)] A means for releasably retaining a dental prosthesis comprises a stud mounted in a housing in or on an artificial tooth and a resilient means which urges the stud to project and engage an adjacent natural tooth. In one form a cylindrical housing 2 is fitted into an artificial tooth 1, or secured to the back of it, and is closed at its outer end 3 except for a square aperture through which a pyramidal stud 5 projects, being urged outwardly by a resilient packing 6 which may be of plastic material. In a modified form, the housing is made longer and the resilient packing is supplemented by a coiled spring. The Specification also describes a gauge for use by a dental mechanic in fitting the device.

Improvements in or relating to the manufacture of artificial teeth

... 627,406. Moulding artificial teeth. LEADER, S. A. Oct. 2, 1946, No. 29414. [Class 87 (ii)] [Also in Groups VI and XVIII] Several thermoplastic or thermosetting synthetic resin powders each of different colour, and each contained in a separate tube 17 are successively fed, under gravity, through a hopper 10, a chamber 4, and canal 6 into mould cavities 7, in a two-part mould 2, 3 described in Specification 627,464, whilst vibrating the mould. After filling, the mould is heatedto moulding temperature, and pressure is applied by a plunger acting on the material in the chamber 4. A blending effect between adjacent layers of colour is obtained by means of the vibration. The moulds may travel on a conveyer through a heating tunnel to heat the moulds prior to filling or to heat the moulds for the moulding operation. A lubricant such as cetyl alcohol, stearic acid or silicone grease may be used to facilitate removal of the moulded teeth. The hopper or the mould may be rotated. The two parts of ...

Improvements in the Manufacture of Dental Plates.

... 22,474. Warren, I. G., and Dental Manufacturing Co. Oct. 2. Teeth, artificial. - Dental plates are coated with gutta-percha and then with coloured celluloid varnish. The gutta-percha is applied as a solution in chloroform, and the plate is dried and then varnished until the colour matches the gums. A vegetable or an aniline pigment may be used to colour the varnish. The process is particularly applicable to aluminium or other metal plates liable to corrosion.

Improvements in or relating to dental root pin sets

... 699,344. Artificial teeth. GERLACH, H. and FRICO, GES. GOLD-UND-SILBERSCHEIDE-ANSTALT. July 3, 1950 [July 5, 1949; Aug. 2, 1949], No. 16508/50. Class 81 (ii). A set of devices for fitting root pins for crowns includes a root pin having a slightly tapered end section, a cylindrical main stem and a longitudinal groove extending throughout its length. The pin 1 is shown in Fig. 1 and may have irregularities 3 for keying into the cement of the crown and transverse grooves 5 in the tapered section 4. The longitudinal groove 7 permits the expulsion of excess of cement in the root bore and serves to locate the crown. The drill 23, Fig. 12, has a tapered cutting section 29 ending in a pyramidal tip 26 and the tapered part is of triangular cross section, as shown in Fig. 13, with hollow ground faces 27. In practice the root bore is drilled and a " substitute " pin, Fig. 3, is temporarily placed in it. A tubular member 9 is placed over this and a wax impression of the root face taken, which is then ...

Improvements relating to artificial teeth

... 713.857. Artificial teeth. VITA ZAHNFABRIK H. RAUTER O. H. G. Oct. 25, 1951 [Jan. 2, 1951], No. 24995/51. Class 81(2) An artificial tooth in which a facing is retained on a reinforcing backing plate by long pins is provided at the junction between the facing and the reinforcing plate with a securing rib which engages in a recess and acts as a countersupport to take up thrusts due to pressure applied during the mastication. In one form of the invention the crown body 1 is secured to the backing plate 2 by long pins 3, a tongue 4 on the backing plate 2 engaging with a recess 5 in the crown body 1. In an alternative construction (not shown) a transverse rib of semi-circular cross-section is provided on the crown body and engages with a corresponding recess on the backing plate. The rib may consist of several parts or may be replaced by cylindrical hemispherical or conical projections.

Improved process of and apparatus for swaging dental plates

... 292,914. Charlier, M. June 25, 1927, [Convention date]. Teeth, artificial. -A dental plate of high resistance metal such as rustless steel is hammered to shape on a metal die on which it is held by an adjustable clamping lever with an interposed mass of soft metal such as lead or tin on which the hammering proceeds from the centre towards the periphery of the die. The die 11 is mounted on the base 1 and the dental plate 14 roughly hammered to the shape of the plate is laid thereon and held by the end 4 of a lever 3 pivoted at 5 to a pedestal 2 and forced down by a nut 8 working on a screw 7 extending through a slot 6. The interposed soft metal is in the form of a strip 12 which at the beginning of the operation is wound into a single coil at the end and clamped between the flattened end 4 and the dental plate 14; successive coils are wound as the hammering proceeds from the centre outwards. The soft metal may be used in the form of a plate of the size of dental plate to be swaged instead ...

METHOD OF AND A DENTAL TOOL FOR FORMING SURFACE IRREGULARITIES ON THE PLATE OF A DENTAL PROTHESIS

... 1414732 Supply circuits for welding apparatus EURO-CERAM 27 March 1973 [28 March 1972] 14640/73 Heading H2H [Also in Division B3] Surface irregularities are formed on a dental plate, to facilitate the joining thereof to a ceramic or resin covering, by contacting the plate with an electrode connected to a circuit which produces voltage pulses having steep leading flanks. The surface irregularities on the plate may comprise protuberances formed by localized deposition of a consumable electrode or cavities formed by a non-consumable electrode. Gold may be electrolytically deposited on the plate after the desired number of protuberances has been formed. The electrode and plate are connected to the terminals of a secondary coil of a transformer T2 whose primary has several take-off points 3, 4, 5 enabling adjustment of the voltage at the secondary terminals 1, 2, e.g. 3-8 volts. The transformer T2 is connected to a bridge of rectifiers CR4- CR7 having terminals 6, 7 connected to an alternating ...

Dental protheses and processes for their production

A process for the production of a dental prosthesis comprises disposing a paste or viscous solution which polymerizes at room temperature or a slightly elevated temperature between a model and a base plate, pressing the base plate so that the paste or solution fills all the interstices between the base plate and the model and allowing the paste or solution to polymerize to form a lining on the base plate. A model is prepared after taking an impression of the jaw. The base plate is cut to the shape of the model from a sheet of suitable synthetic resin material. The base plate is softened by boiling water and shaped to the model, the shape being made permanent by immersing in cold water. A suitable lining mixture is then applied to the tissue side of the base plate which is then pressed on the model so that the mixture fills the interstices between the base plate and the model. The lining mixture polymerizes at room temperature in a short time. Teeth of porcelain or polymethyl methacrylate ...

Prosthodontic device

DENTAL PROSTHESES COMPRISING ELECTRIC CONDUCTIVE CERAMICS.

A dental prosthesis comprises an inner layer portion and an outer layer portion. The outer layer portion is a dental porcelain material, while the inner layer portion is a sintered product which, after sintering, is composed of: (i) 40 to 95% by weight of one or (two or) more electric conductive ceramic materials selected from the group consisting of nitride ceramics, boride ceramics and carbide ceramics, all having a specific electric resistance of 10-1 OMEGA xcm or below, and (ii) 5 to 60% by weight of the following (A) and/or (B): (A) a dental porcelain material, and (B) one or (two or) more metals selected from the group consisting of Ti, Zr, Au, Pt, Pd, Ag, In and Sn.

Improvements in artificial dentures and in the method of manufacture thereof

... 466,187. Artificial teeth. HOBDAY, W. W. Nov. 30, 1935, No. 33217. [Class 81 (ii)] Wings 3 for the front portions of dentures are formed with reinforcing plates 4, which have pegs 5 projecting from one surface and these plates are accurately positioned in the mould by embedding them in the wings of a waxed pattern built up on a model so that the pegs project through the wings of the pattern and then serve to locate the plates in a matrix during the moulding of the denture. The model and wings are set up in a " flasking " mould into which is poured plaster of Paris, after the setting of which the wax is melted leaving a mould into which vulcanite is packed. After vulcanization and removal of the mould the projecting ends of the pegs are cut off.

Composite denture combining soft polyurethane and hard polymer components

An artificial denture of composite construction is provided which comprises a tooth-holding portion fabricated from a hard non- polyurethane polymer having a hardness of not less than Shore D40 integrally chemically bonded to a mouth-engaging portion fabricated from a soft non-hydrophilic polyurethane elastomer having a hardness of not greater than Shore A65, said polyurethane having advantageous resistance to flexing and photodegradation and being the reaction product of a polyether polyol and an aliphatic, cycloaliphatic or aralkyl di- or polyisocyanate in which the isocyanate groups are directly bonded to the aliphatic, cycloaliphatic or alkyl moieties thereof.

Production of metal denture plates and the like

... 1,032,982. Making dies and dental plates; stamping. NATIONAL RESEARCH DEVELOPMENT CORPORATION. March 25, 1965 [March 25, 1964], No. 12718/64. Headings B3A and B3Q. A working plaster model of an upper jaw is made in the usual way and an impression 11 is taken in a tray 12 therefrom. This impression is placed on a layer 13, e.g. plaster of Paris, at the bottom of a metal cylinder 14 and positive cast material 16 is poured in through a brass supporting ring 15. The cast may be of dental plaster or stone or of an epoxy resin and forms a die, which is placed in a holder 17 (Fig. 2, not shown). A stainless steel disc 18 is clamped between a cover-plate 19 and the holder and hydraulic pressure is applied to the top surface of the disc. The pressure is raised over a period of at least a second and after an initial deformation, the disc usually needs annealing. Alternatively, the plate may be made of gold, platinum, palladium or a chromium-cobalt alloy.

Improvements in artificial teeth

... 201,876. Columbus Dental Manufacturing Co., (Assignees of Marx, H. A.). Aug. 3, 1922, [Convention date]. Teeth, artificial.- An interchangeable. artificial t o o t h adapted to be supported by a plate or bridge has a root portion 3 which is integral with a crown portion 1 and projects into the eden. tulous socket of the gum. The tooth is formed on the labial side with a recess; one side 4, Fig. 1, of which consists of a plane surface oblique to the longitudinal axis of the tooth and has a triangular slot 15 and a hole 6 communicating with each other, the other side 5 being a plane surface at an angle with the side 4 preferably equal to or greater than a right-angle. The hole 6 is preferably at right-angles to the side 4 and the side 7 of the slot at right-angles to the axis of the tooth. The slot is of a width less than the diameter of the hole and the end 10 of the slot is at a small distance from the inner end of the hole. A metal backing consisting of a plate 11, Fig. 4, with a post ...

Dental prosthesis

The dental prosthesis comprises a base of a durable corrosion-resistant metallic alloy and an external decorative layer is made of a harder material than the base and comprises one or more compounds selected from the nitrides, oxynitrides, carboxynitrides, cyanonitrides, and oxides of metals of the subordinate subgroup of Group IV of the periodic system. preferably Ti and Zr. The thickness ratio of the external decorative layer to the base is 1:10-200 respectively. In the case where the base comprises a structure of soldered members made of a durable corrosion-resistant metallic alloy, the zone of the soldered juncture or the entire structure is coated, by electroplating or vacuum technique, with an additional layer of cobalt, nickel, molybdenum chromium, or zirconium, or nitrides of chromium or molybdenum. The thickness ratio of the additional layer to the external decorative layer is 0.5-1:1 respectively. Thereafter, the external decorative layer is deposited by vacuum technique.

Leucite glass ceramics

A leucite glass-ceramic is disclosed which is prepared from a glass comprising: about 66.8 to about 71.9 mol % of Si02, about 8.5 to about 10.3 mol % of A1203, about 9.5 to about 12.8 mol % of K2O, about 0.5 to about 4.0 mol % of CaO, about 0 to about 3.0 mol % of TiO2, about 1.9 to about 4.0 mol % of Na2O, about 0.1 to about 2.0 mol % of Li2O, about 0 to about 1.0 mol % of MgO, about 0 to about 3.0 mol % of Nb205, and about 0 to about 3.0 mol % of B2O3. The leucite glass-ceramic is prepared by subjecting the glass components to a nucleation heat treatment, followed by a growth heat treatment, The leucite glass-ceramic may be used in the fabrication of a dental restoration using various processes, and may be used in the construction of dental restorations such as ceramic dental inlays, crowns, veneers, bridges, veneering materials for zirconium oxide restoration substrates, alumina oxide restoration substrates, or metal restoration substrates.

DENTAL OPAQUING COMPOSITIONS AND METHOD FOR THEIR PREPARATION AND USE

... 1418004 Dental opaquing compositions DENTSPLY INTERNATIONAL Inc 29 Nov 1972 [16 Dec 1971] 55206/72 Heading C3P Compositions suitable for opaquing a metal surface of a dental crown and bridge prosthesis contain, as sole polymeric component, a copolymer of 20-60 parts by weight of acrylonitrile and 40-80 parts by weight of methyl methacrylate and also include a pigment in an amount of from 1-45 parts by weight, based on 100 parts by weight of copolymer plus pigment. The copolymer is suitably dissolved in a solvent such as a nitroparaffin or a halogenated hydrocarbon in proportions of 5-40 parts by weight copolymer and 35-90 parts by weight solvent. Suitable pigments include silica, titanium dioxide, zinc oxide, iron oxide, barium sulphate and mixtures thereof. The compositions may also include minor amounts of a carboxylic acid, e.g. methacrylic acid, and an adhesion promoting silane compound.

Arrangement for securing dental prosthesis

... 730,983. Artificial teeth. PHEULPIN, A. Oct. 17, 1952 [Nov. 6, 1951], No. 26115/52. Class 81 (2). An arrangement for securing a dental prosthesis 4 comprises a downwardly bent projection 3 mounted on a crown or like metal member 1 secured to a tooth 2 forming an anchor for the prosthesis, said projection forming a hook adapted to be engaged by a locking lever 5 pivotally secured to a horizontal spindle 6 extending through and fitted in the transverse terminal wall of the prosthesis adjacent the anchor tooth, said lever being adapted to be angularly turned about its pivot to engage the underside of the projection 3 so as to clamp the prosthesis in position relative to the pillar tooth.

Improvements in or relating to dental presses

... 273,645. Ohio Chemical & Manufacturing Co., (Assignees of Axelrod, M. L.). June 29, 1926, [Convention date]. Dental flasks; heating apparatus; moulding indiarubber and resins.-A press for dental flasks is provided with electrical heating means for the curing of indiarubber, phenol aldehyde &c. dentures. Coils 15, 16, with terminals 19, 20, are embedded in the upper platen 13, and base 10, respectively, of a press. An intermediate plate with coils 18 may be inserted between guides 14, if it is desired to employ two flasks 24, 25 simultaneously. The coils are preferably connected in the same circuit which is controlled by a thermostat 22, 23.

Improvements relating to palate suction devices for artificial upper denture members

... 516,757. Artificial teeth. RECHNITZ, G. Jan. 27, 1939, No. 2936. Convention date, Aug. 30, 1938. [Class 81 (ii)] A suction device for artificial upper dentures comprises a number of thin strips c, each formed as a suction channel open to the palate and arranged in an opening of the tooth carrying portion b, of the denture. The channelshaped strips may be connected to a central strip d which may be provided within its hollow with a rib f corresponding to the longitudinal suture of the palate. The channelshaped strips may be of various cross-sectional form; they may be formed at their ends with recesses g or may be connected by a wire to facilitate the production of a firm connection, e.g. by vulcanization, to the denture body.

Improvements in the Production of Moulds for Casting Metals.

... 23,857. K³ller, M. Oct. 19, 1908, [Convention date]. Fibrous plastic compositions. - Anatomical parts, such as dental parts, and dies for producing them are cast in refractory metals in a mould produced directly from the part in question. A substance such as glue or gelatine may be added to the mould material, which, when the mould is set, acts to expand the same to compensate for the shrinking of the metal on cooling. Salts may be added to cause the mould material to set quickly, to render it antiseptic, and to give it a pleasant taste or odour. The mould material may be sand, infusorial earth, chamotte, pumice stone, quartz sand, clay, chalk, asbestos, &c. mixed with a binding- medium such as plaster of paris or cement. Materials such as magnesia or the like used for artificial stone may be employed. Wood-meal, coal dust, resin, &c. may be added to increase the porosity. Salts employed to hasten the ,setting may be potassium salts, siegnette salt, sodium sulphate, ammonium chloride, or ...

The manufacture of rubber charges for dental injecting apparatus

... 174,387. Joannides, C. July 24, 1920. Teeth, artificial.-Consists in manufacturing the rubber charges for injection into a denturemould by means of a pump, of a form corresponding to the shape of the pump barrel, or in a block, which may be marked, from which charges can be cut. A coating of wax, tinfoil, waxed fabric, cardboard, or like material may be provided to prevent deterioration.

Improvements in fastenings for artificial teeth

... 408,733. Artificial teeth. SCHULZE, H., 8, Zietenstrasse, Nowawes, near Potsdam, Germany. Nov. 28, 1932, Nos. 33658 and 33659. Convention dates, Nov. 26, 1931 and May 11, 1932. [Class 81 (ii).] A device to be moulded into an artificial denture for securing an artificial tooth thereto consists of a metal strip 1, Fig. 2, bent into U- shape and having at its rear edge a flange 5 for anchoring it to the denture, and, at its front edge, resilient flanges 7, 8 to engage the head of a stud 9<1>, Fig. 6, fixed to the tooth by means of baked-in pins 10, 11. Notches 6 may be formed in the flange 5. In a modification, Fig. 3, the flanges 7, 8 have rounded edges merging into a central tongue 9 and the tooth 1s formed with two headed pins of the ordinary kind. The tooth is secured in the holder by means of cement or gutta-percha. In the case of a peg crown, for instance, the U-shaped member is applied to a tooth and a wax pattern made, the tooth is then withdrawn and the metal backing is cast with ...

Improvements in or relating to artificial teeth and method and means of making the same

... 508,204. Moulding artificial teeth. DENTAL RESEARCH CORPORATION. Dec. 28, 1937, No. 35939. Convention date, Dec. 28, 1936. [Class 87 (ii)] Relates to the moulding of hollov artificial teeth made of porcelain. Flexible material such as rubber, plasticised vinyl chloride, gel atine, glue, &c. is poured around a master core and a master tooth to pro duce cavities 6, 7, Figs. 1 and 3, in a flexible mould 5. A ring 15 having a radial wire with a downwardly projecting end 22 is then placed in a groove 11 so that the wire lies in a slot 24. Flexible material, wax, or resin is then poured into the cavity 6, and when it has set, the ring with the wax core is transferred to the groove 12, so that the core 25 lies in the cavity 7 formed by the master tooth. Porcelain 28 with a temporary binder is then poured into the space between the wax core and the walls of the cavity 7 and the mould is subjected to vibration by a device 32. When the porcelain is sufficiently compacted, the core with the porcelain ...

Improvements in or relating to the manufacture of artificial dentures

... 539,239. Synthetic resin articles. ORALITE CO., Ltd., and MERRILL, H. W. March 1, 1940, No. 3885. [Class 2 (iii)] [Also in Group VI] Artificial dentures are made by forming a wax model with porcelain teeth, investing it in a mould with dental plaster, removing and filling the mould with synthetic resin of which the entire denture with teeth is made, a single curing only being performed as by boiling for 65 minutes in a closed flask. The teeth cavities may be filled with different artificial resin from that used for the palate and gums, methacrylate and vinyl resins being mentioned.

Improvements in or relating to the manufacture of surgical protheses

Surgical protheses, particularly dental protheses, are manufactured in the manner usually employed for working up rubber by mixing a solid, preferably comminuted polymerizate with a liquid monomeric or partially polymerized compound to produce a plastic, kneadable mass, filling a mould of the dental flask type therewith and solidifying the mass therein by polymerization of the liquid material. Suitable polymerizable compounds are vinyl and acryl compounds and styrol. A mixed polymerizate or mixtures of polymerizates may be employed for the solid material. Polymerization accelerators, e.g. hydrogen peroxide and benzoyl peroxide and regulators, e.g. turpentine oil, may be employed. Additions such as artificial or natural resins, softeners, soluble colours or insoluble pigments, fillers and cellulose derivatives, e.g. cellulose tripropionate or cellulose ethers, may be employed. Polymerization is effected at temperatures at which bubble formation does not occur. The mould may be lined with ...

Metal orthodontic retainer or dental flipper

Improvements in and relating to artificial teeth

A composition suitable for use in the production of artificial teeth comprises a siliceous-plastic agglomerate made of a mixture of siliceous fibres, particularly crystal glass, having diameters of 25 to 200 microns, the fibres being broken into fragments of a length from 1 to 4 mm., but without very small dust-like fragments, and globules comprising a synthetic resin, which globules may comprise only a thermoplastic resin or may have siliceous cores, e.g. of small particles of glass or quartz, completely surrounded by resin. The compositions may be made by mixing the fibres and synthetic resin globules, particularly globules of polymethyl methacrylate, and heating in a mould or by using as resin a suitable polyester in solution in styrene with or without a small proportion of methyl methacrylate, polymerization of the monomer and formation of the composition being carried out by heating in a mould, the polymerization step being effected at a suitable temperature without the application ...

Improvements in or relating to the manufacture of artificial teeth

... 258,674. Grainge, H. J., Wilding, S. W., and Amalgamated Dental Co., Ltd. June 27, 1925. Teeth, artificial.-In the manufacture of dentures by applying a gum facing of synthetic enamel, such as a phenol-formaldehyde condensation product, to a previously formed base plate, the gum facing is covered by sheet material which is impervious to moisture before the denture is inserted in plaster for hardening the gum facing by heating. The sheet material may consist of rubber, or of rubber mixed with paraffin wax or oil, or of metal foil coated on one or both sides with rubber, rubber composition, or a mixture of oil and chalk such as has previously been employed in liquid or pasty form as a protective layer to be painted on to the gum facings.

Dental prosthesis and its manufactoring process.

HOLDING DEVICE FOR A CERAMIC(S) BLANK

KOPIERFRASEINRICHTUNG TO THE PRODUCTION OF IN PARTICULAR TOOTH-TECHNICAL WERKSTUCKEN

PROCEDURE FOR DESIGNING A LINK

MECHANISM FOR THE VITAL ATTITUDE OF BONE FABRIC WITH ENDOPROSTHESES

Anordnung zum Sintern eines Dentalwerkstücks

Anordnung (1) zum Sintern eines Dentalwerkstücks (2), mit einem bearbeiteten Dentalwerkstück (2) und einer Haltevorrichtung (3) für das Dentalwerkstück (2), wobei das Dentalwerkstück (2) größenmäßig einer Dentalkonstruktion (4) mit zumindest fünf, vorzugsweise mit zumindest acht, miteinander verbundenen Gliedern (5) entspricht, das Dentalwerkstück (2) an der Haltevorrichtung (3) aufgehängt ist und das Dentalwerkstück (2) über ein im oder am Dentalwerkstück (2) ausgebildetes, von der Dentalkonstruktion (4) gesondertes Verbindungsstück (6) mit der Haltevorrichtung (3) verbunden bzw. verbindbar ist.

PROCEDURE FOR THE PRODUCTION OF SINTERED METALLIC DENTURE PARTS.

KOPIERFRÄSEINRICHTUNG ZUR HERSTELLUNG VON INSBESONDERE ZAHNTECHNISCHEN WERKSTÜCKEN

IMPLANT-CARRIED ARTIFICIAL DENTURE AND PROCEDURE FOR YOUR PRODUCTION

A DEVICE FOR USE IN PARTICULAR THE REINFORCEMENT OF TEETH OR DENTALEN PROSTHESIS DEVICES

Autoclave.

Procedure for lining artificial dentures with Organopolysiloxanelastomeren

Flexible artificial denture

Method for the production of a dental restoration

The invention relates to a method for the production of a restoration from a blank consisting of, or containing, a lithium silicate glass ceramic, wherein at least two layers of ceramic material of different compositions are filled into a mold layer-by-layer and after filling of the layers they are then pressed and sintered, wherein after filling of a first layer this is structured on its surface in such a way that the first layer, viewed across its surface, differs in its height from region to region, and then a layer with a composition that differs from the first layer is filled as a second layer into the mold. After sintering the dental restoration is produced from the blank by mechanical working.

Water-resistant polymer-based dental articles

A dental article such as a dental tray aligner or a dental crown that includes a substrate including a polymeric material having a modulus of elasticity that reduces upon exposure to water and a water-resistant coating on the substrate, where the water-resistant coating comprises parylene. In some examples, the water-resistant coating may include one or more layers that include parylene.

Registration of 3-D imaging of 3-D objects

Method for (semi-) automatic dental implant planning

A method and system for (semi-) automatic dental implant planning (A) is described including (a) means for creating 3D models of a tooth setup (b) and/or means for creating 3D models of parts of the jaw, (c) means for detecting zones in the jaw where implants can (or optionally cannot be placed), (d) means for detecting restorative elements in the tooth setup, (e) means for determining candidate implant dimensions, positions, orientations and configurations, (f) means for obtaining implant plans, (g) means for comparing implant plans to each other or to given criteria, (h) means for selecting or improving an implant plan.

Method and system for dental planning

2D image arrangement

Disclosed is a method of designing a dental restoration (1140) for a patient, wherein the method comprises: -providing one or more 2D images (1101), where at least one 2D image (1101) comprises at least one facial feature (1103); -providing a 3D virtual model (1102) of at least part of the patient's oral cavity; -arranging at least one of the one or more 2D images (1101) relative to the 3D virtual model (1102) in a virtual 3D space such that the 2D image (1101) and the 3D virtual model (1102) are aligned when viewed from a viewpoint, whereby the 3D virtual model (1102) and the 2D image (1101) are both visualized in the 3D space; and -modeling a restoration (1140) on the 3D virtual model (1102), where the restoration is designed to fit the facial feature (1103) of the at least one 2D image (1101).

2D image arrangement

Disclosed is a method of designing a dental restoration (1140) for a patient, wherein the method comprises: -providing one or more 2D images (1101), where at least one 2D image (1101) comprises at least one facial feature (1103); -providing a 3D virtual model (1102) of at least part of the patient's oral cavity; -arranging at least one of the one or more 2D images (1101) relative to the 3D virtual model (1102) in a virtual 3D space such that the 2D image (1101) and the 3D virtual model (1102) are aligned when viewed from a viewpoint, whereby the 3D virtual model (1102) and the 2D image (1101) are both visualized in the 3D space; and -modeling a restoration (1140) on the 3D virtual model (1102), where the restoration is designed to fit the facial feature (1103) of the at least one 2D image (1101).

Ready-made customized impression tray for fabricating and fitting dentures

A dental device

Method and apparatus for fabricating and fitting dentures

POLYMERIC BLENDS CONTAINING A BLOCK POLY (ETHER-CO-AMIDE)

Dental implant prosthetic structure

The invention relates to a dental prosthetic structure for an implant, comprising: a tubular interface part (2) having an axial through-hole for admitting a fixing screw (1); a prosthetic element (5) that is coupled to the interface part (2), said prosthetic element being tubular and having an axial through-hole for admitting the fixing screw (1); and a securing element (7) for securing the prosthetic element (5) to the interface part (2), said securing element having an axial through-hole for admitting the fixing screw (1), and being introduced into the axial through-hole of the interface part (2) and into the axial through-hole (6) of the prosthetic element (5) in order to secure the two parts (2, 5), such that the axial through-holes of the three parts (2, 5, 7) are aligned, forming a passage for the fixing screw (1).

Methods for producing a laboratory analogue for dental implants

METHODS FOR PRODUCING A LABORATORY ANALOGUE FOR DENTAL IMPLANTS A method for producing a laboratory analogue (1, 21, 31) for dental implants comprises the steps of: providing at least one sleeve (11) comprising a cylindrical depression (4) having an internal thread; providing a three-dimensional model (6, 16, 26, 36) of at least a partial region of a jaw of a patient who harbours at least one dental implant; inserting at least one sleeve (11) into at least one recess (7) of the model (6, 16, 26, 36) matching the sleeve (11), whereby each recess (7) is arranged in a region of the model (6, 16, 26, 36), in which a dental implant is arranged in the jaw of the patient; and fully-automatic ablation of at least one inserted sleeve (11), wherein the ablation is controlled through three-dimensional scanning data of the oral space of the patient, wherein the data was recorded previously, and the sleeve (11) is ablated based on such data to the extent that the crestal end of the laboratory analogue ...

Transparent aligner and method for manufacturing same

Disclosed are a transparent aligner for orthodontic treatment and a method of manufacturing the same. The method for manufacturing a transparent aligner includes the steps of: determining a tooth outline model having an outline part to surround the surface of a tooth requiring rotational orthodontic treatment; determining the rotation central axis of the tooth requiring rotational orthodontic treatment; determining two points which are in contact with the outer surface of the tooth and are symmetric to each other with respect to the rotation central axis, on the basis of the rotation central axis and the rotation direction required for orthodontic treatment of the tooth requiring rotational orthodontic treatment; determining a rotational orthodontic model for rotational orthodontic treatment by protruding the outline part from the two points toward the surface of the tooth and the rotation direction; and generating a 3D tooth orthodontic model by applying the rotational orthodontic model ...

LITHIUM DISILICATE GLASS-CERAMIC, METHOD FOR THE PRODUCTION THEREOF AND USE THEREOF

The invention relates to glass ceramics on the basis of the lithium disilicate system, which can be easily mechanically machined in an intermediate stage of the crystallization and which represent high-strength, highly translucent and chemically stable glass ceramics after complete crystallization. Furthermore, the invention relates to a method for producing said glass ceramics. The glass ceramics according to the invention are used as dental material.

DENTAL FIBER REINFORCED STRUCTURES

Dental composite restorations reinforced with one or more fiber structures are disclosed. The fiber structures can have a wide array of shapes and sizes, including rods with circular cross sections, rods with ~U~ shaped cross sections, rods with ~I~ shaped cross sections, and fiber mesh structures. The reinforced dental composite restorations are created by incrementally layering and curing composite materials onto the fiber structures. The resulting restorations have significantly improved flexural strength as compared to conventionally prepared composite restoration materials.

Digitisation of dental parts

The surface of a dental part is scanned by a probe, to obtain a digital model of the surface in a dental CAD computer system. In the digital model, first and second boundary lines are defined, above and below a portion in which the scanned data is missing or unsatisfactory. One of the boundary lines may correspond to a margin line between prepared and unprepared portions of the patient's tooth. A transition surface is generated in the computer system, extending between the first and second boundary lines. This improves the representation of the dental part in the digital model, which may subsequently be used for manufacture of a dental restoration.

Machined overdenture bar

Overdenture bars secured to a portion of a jaw bone provide a mounting platform for dental prosthetics. One method to form an overdenture bar includes obtaining a digital image of a portion of a mouth, transferring the image to a computer and forming a three dimensional image of the portion. A virtual overdenture bar is designed to terminate at opposing first and second distal ends and have a first thickness defined by opposing first and second surfaces. The overdenture bar has an extension projecting from at least one distal end adjacent the second surface. Each extension has a second thickness that is less than the first thickness. A socket extends through each extension for engagement with the dental prosthetic. A digital file of the virtual overdenture bar is transferred to a number controlled machine and the overdenture bar and extensions machined from a single piece of stock material.

Method for manipulating a dental virtual model, method for creating physical entities based on a dental virtual model thus manipulated, and dental models thus created

A 3D virtual model of an intra oral cavity in which at least a part of a finish line of a preparation is obscured is manipulated in virtual space by means of a computer or the like to create, recreate or reconstruct finish line data and other geometrical corresponding to the obscured part. Trimmed virtual models, and trimmed physical models, can then be created utilizing data thus created. The virtual models and/or the physical models may be used in the design and manufacture of copings or of prostheses.

Preformed provisional crowns and methods for constructing temporary dental crowns and bridges

Apparatuses and methods for providing crowns and bridges is disclosed. The apparatuses include provisional preforms which can have cavities, windows and slits that enable material and linear members to extend through for engagement with adjacent teeth or other preforms. The methods also include ways in which to create crowns and bridges using the preforms.

Preformed provisional crowns and methods for constructing temporary dental crowns and bridges

Apparatuses and methods for providing crowns and bridges is disclosed. The apparatuses include provisional preforms which can have cavities, windows and slits that enable material and linear members to extend through for engagement with adjacent teeth or other preforms. The methods also include ways in which to create crowns and bridges using the preforms.

Method for Machining a Dental Prosthesis

A method for machining a dental prosthesis that reduces the likelihood of forming tool failure includes machining a workpiece to form a top surface and a side surface of the dental prosthesis, machining a connector between a proximal end of the dental prosthesis and a proximal end of the workpiece, and machining a bottom surface of the dental prosthesis with a spiral tool path.

Method For Producing Tooth Replacements And Auxiliary Dental Parts

In a method for forming a dental part, a laser beam is guided over a powder layer of biocompatible material. The laser is guided by a computer controlled laser scanning system based on data representing the shape of the cross-section through the shaped body. The powder is substantially melted by the laser beam to form a layer in the shaped body, to build the shaped body entirely from layers of laser-melted material.

Production of a Negative Mould for use in Producing of a Dental Prosthesis, a Temporary or Permanent Crown or Bridge

For producing a mother matrix mould of a full or partial dental prosthesis or of a temporary crown or bridge or of a permanent crown or bridge, the data of a digitalised virtual model reflecting the status of the jaw is used to generate a data set of the digital tooth set-up of the full or partial dental prosthesis or of the temporary crown or bridge or of the permanent crown or bridge, based on which a rapid manufacturing or rapid prototyping method is used to produce a functional model of the full or partial dental prosthesis or of the temporary crown or bridge or of the permanent crown or bridge that is then invested in a curable elastic impression material from which the mother matrix mould is produced after curing the elastic impression material.

Method for machining a dental prosthesis

A method for machining a dental prosthesis that reduces the likelihood of forming tool failure includes machining a workpiece to form a bottom surface without machining a bottom cavity of the dental prosthesis, then machining the bottom cavity and machining the top.

Method for automatically fabricating a dental superstructure for attachment to an implant

A system for a dental superstructure to be attached to an implant using a digital model description of a shape of the superstructure, the superstructure including first and second elements. The system comprises a computing device arranged to (a) analyze a recorded real clinical situation or shaped clinical situation of an implant axis and insertion axis, (b) compute a shape of the dental superstructure based at least in part on the determined implant axis, (c) generate digital data representing the shape of the superstructure, and (d) separate the computed shape into first digital data representing a shape of the first element to be connected to the implant and second digital data representing a shape of the second element to be connected to the first element, the shape of the first element being optimized, at least in part, based on a tilt angle between the determined implant axis and insertion axis.

Abutment and abutment systems for use with implants

An abutment for supporting a prosthesis relative to an implant includes an implant engaging portion configured to engage with a dental implant and a component supporting portion having a key feature on an external surface portion thereof. The key feature is configured to provide keyed mating engagement with a complimentary key feature on a component to be engaged with the abutment.

Dental Implant System and Method of Use

A dental implant system includes an implant having a well, an abutment having a post shaped to be received in the well, and a collar modifiable to the gingival anatomy and the tooth restoration anatomy. Both the implant and the abutment are made from a millable ceramic, and the abutment post and/or the implant well have grooves carved therein. In one embodiment, the implant and the abutment are joined one to the other with a retentive elastomeric product containing micro-bubbles and/or micro-spacers. The dental implant system may be produced using a computer-readable medium containing instructions for analyzing surface data and X-ray data, for developing contour data of the implant and of the abutment according to the anatomy of the patient, and for generating machine instruction for milling the implant and the abutment from blocks of the millable ceramic.

Method and system for designing and producing dental prostheses and appliances

A virtual model of an intraoral cavity is provided, wherein this process is initialized by a dental clinic, and the design and manufacture of a suitable dental prosthesis for the intraoral cavity is shared between a dental lab and a service center.

Process for the Preparation of Dental Restorations

The invention relates to a process for preparing dental restorations, wherein a lithium silicate glass ceramic or a lithium silicate glass is used which contains at least 8.5 wt.-% transition metal oxide selected from the group consisting of oxides of yttrium, oxides of transition metals with an atomic number from 41 to 79 and mixtures of these oxides.

Lithium silicate glass ceramic and glass with ZrO2 content

Lithium silicate glass ceramics and glasses are described which can advantageously be applied to zirconium oxide ceramics in particular by pressing-on in the viscous state and form a solid bond with these.

Ceramic manufactures

Fired magnesium oxide stabilized transformation toughened zirconia ceramic can be for or of an implant or implant component of a one-piece unicompartmental knee spacer device; a multi-piece unicompartmental joint aligning device; a temporal mandibular joint cap implant; a vertebra cap; an ankle joint ensemble or component; a bridge, a tooth or teeth; a patellofemoral joint implant; a tibial tray for a knee joint replacement implant; an intermediary articulation plate for a tibial tray and liner for a knee joint replacement implant; or the intermediary articulation plate assembled in combination with the tibial tray.

Systems and methods for making monolithic gel bodies

Systems and methods for making a monolithic gel body. Some systems can include a substrate, a sol, an ammonia atmosphere. Some methods can include applying a first quantity of the sol to the substrate to form a first coated substrate, and positioning the first coated substrate in the ammonia atmosphere to cure the first quantity of sol to form a first supported gel comprising a first gel supported by the substrate. Such methods can further include applying a second quantity of the sol to the first supported gel to form a second coated substrate comprising the second quantity of sol and the first supported gel. Some methods can include positioning the substrate in the ammonia atmosphere while applying the sol onto the substrate to form a monolithic gel body by a layering process.

Computer-aided Fabrication Of A Removable Dental Prosthesis

A method and system for fabricating a dental prosthesis are provided. High resolution digital scanned images of a patient's oral structures are acquired. Three dimensional (3D) cone beam X-ray images of hard and soft oral tissues are acquired. The scanned images are integrated with the 3D cone beam X-ray images in a 3D space to obtain combined three dimensional images of the oral structures. The occlusal relationship between upper and lower oral structures are digitally simulated using the combined three dimensional images. The dental prosthesis is digitally modeled for planning intra-oral positioning and structure of the dental prosthesis. The digital dental prosthesis model is refined based on simulated force tests performed for assessing interference and retention of the digital dental prosthesis model. A prospective dental prosthesis model is created based on the refined digital dental prosthesis model. The dental prosthesis is fabricated based on a verified prospective dental prosthesis model.

Dental Implant and Method for Manufacturing Dental Implant

In a method for manufacturing a dental implant including an abutment, the abutment is manufactured through steps including a titanium molded body production step for molding a titanium molded body composition to obtain a titanium molded body having one of male and female thread portions, a ceramic molded body production step for molding a ceramic molded body composition to obtain a ceramic molded body having the other thread portion which makes thread coupling with the one thread portion, an assembling step for assembling the titanium molded body and the ceramic molded body together so that the one thread portion makes thread coupling with the other thread portion, to obtain an assembled body, a degreasing step for degreasing the assembled body, and a sintering step for sintering the assembled body thus degreased.

MULTICOLOR DENTAL BLANKS AND RELATED METHODS

A dental blank has at least an inner zone (or layer) of a first color and an outer zone (or layer) of a second color, wherein the inner and outer zones are concentric. The inner zone can be surrounded in its entirety by the outer zone such that only the outer zone is visible on all surfaces of the blank. Alternatively, the inner zone and the outer zone can extend to a same single surface of the blank, such that only the outer zone covers all remaining surfaces. The blank may also have an intermediate zone between the inner and outer zones. A method of fabrication includes solid free form processes, such as robocasting, laser sintering and 3D printing that allow for placement of multiple colors. A dental restoration made from the blank can have a variety of shades depending on a ratio of milled outer layers to internal layers. 1. A method of milling a dental prosthesis from a blank , comprising:providing a blank with concentric zones, including an outermost zone, wherein each of the zones has a different color;positioning a form of the dental prosthesis on the blank wherein an occlusal surface of the prosthesis is contained in the outermost zone.2. A method of claim 1 , further comprising adjusting a position of the form on the blank to adjust a resulting color or chroma of the prosthesis.3. A method of claim 2 , wherein the adjusting a position results in changing an amount of the outermost zone to be contained in the prosthesis. This application is a divisional of U.S. patent application Ser. No. 12/943,618 entitled MULTICOLOR DENTAL BLANKS AND RELATED METHODS, filed Sep. 24, 2010, which is a National Stage Application of PCT/US2007/089157, filed Dec. 28, 2007, which claims priority to and the benefit of U.S. provisional application No. 60/878,041, filed Dec. 28, 2006, the entire contents of which are incorporated herein by reference.The invention relates to methods and materials for machinable multicolor dental blanks to fabricate polychromatic, color-graded ...

Method of Making Self-Ligating Orthodontic Brackets and Component Parts

A method of making a plurality of self-ligating orthodontic brackets or component parts thereof, in accordance with the principles of the invention, includes the steps of: (a) providing, in electronic form to or within an additive manufacturing system, a three-dimensional model of each of a plurality of self-ligating orthodontic brackets or component parts thereof; (b) forming a layer of particles, the particles having an average particle size of about 10 microns or less, the layer of particles having a depth of about 20 microns or less; (c) applying energy to a plurality of designated locations of the layer of particles in accordance with the three-dimensional model, thereby joining the particles together at each of the plurality of designated locations, the joined particles at each designated location being a layer of one of the plurality of self-ligating orthodontic brackets or component parts thereof or support structure; and (d) repeating steps (b) and (c) until the plurality of self-ligating orthodontic brackets or component parts thereof has been formed. 1. A method of making a plurality of self-ligating orthodontic brackets or component parts thereof , comprising the steps of:(a) providing, in electronic form within an additive manufacturing system, a three-dimensional model of each of a plurality of self-ligating orthodontic brackets or component parts thereof;(b) forming a layer of particles, the particles having an average particle size of about 10 microns or less, the layer of particles having a depth of about 20 microns or less;(c) applying energy to a plurality of designated locations of the layer of particles in accordance with the three-dimensional model, thereby joining the particles together at each of the plurality of designated locations, the joined particles at each designated location being a layer of one of the plurality of self-ligating orthodontic brackets or component parts thereof or support structure; and(d) repeating steps (b) and (c) ...

BLOCK BODY FOR PRODUCING DENTURE BASE

To provide a most suitable block body for producing a denture base used when producing a denture base by cutting, the block body for producing a denture base is produced by polymerizing a (meth)acrylate monomer so as to have a color tone within a range that L* is 40 to 55, a* is 14 to 31, and b* is 5 to 20 when the color tone is measured with a sample thickness of 4 mm based on JIS Z8729, and to be preferably in a cylindrical shape having a diameter of 8 to 15 cm and a height of 1.5 to 5 cm, or in an elliptical-cylindrical shape having a major diameter and minor diameter of 8 to 15 cm and a height of 1.5 to 5 cm. 1. A block body for producing a denture base , wherein the block body is produced by polymerizing a (meth)acrylate monomer ,and has a color tone within a range that L* is 40 to 55, a* is 14 to 31, and b* is 5 to 20 when the color tone is measured with a sample thickness of 4 mm based on JIS Z8729.2. The block body for producing a denture base as claimed in claim 1 , wherein the block body has a cylindrical shape having a diameter of 8 to 15 cm and a height of 1.5 to 5 cm.3. The block body for producing a denture base as claimed in claim 1 , wherein the block body has an elliptical-cylindrical shape having a major diameter and minor diameter of 8 to 15 cm and a height of 1.5 to 5 cm.4. The block body for producing a denture base as claimed in claim 1 , wherein the block body can be a cuboid having sides of 8 to 15 cm and a height of 1.5 to 5 cm. 1. Field of the InventionThe present invention relates to a block body for producing a denture base used when producing the denture base by a cutting machine based on three-dimensional coordinate data.2. Description of the Conventional ArtConventionally, a method of casting a metal material by a lost wax casting method has been generally used for producing a dental prosthesis e.g., a crown, an inlay, a bridge, and the like. In the ordinary production of the dental prosthesis by the lost wax casting method, an ...

Systems and methods for fabricating dental prostheses in a single office visit

A method for fabricating a dental prosthesis during a single office visit includes: scanning a template that is representative of at least a portion of a patient's intra-oral anatomy to create a computer aided design (CAD) model of the template; manipulating the CAD model of the template to design a base for the dental prosthesis having a plurality of recesses shaped to receive teeth; fabricating the base from the manipulated CAD model; and securing prosthetic teeth in the recesses of the fabricated base.

System for embedding artificial tooth root

The present invention provides a system for embedding an artificial tooth root whereby holes of various depths can be bored into an alveolar bone more stably and kinds of drills and kinds of spacers to be included herein can be reduced. The system for embedding an artificial tooth root comprises: two kinds of dental drills to bore a hole into the alveolar bone which have predetermined different lengths and have a predetermined relation; and one to three kinds of spacers to be attached to the dental drills, for combinations of an artificial tooth root and a surgical guide, the artificial tooth root being selected from a group of artificial tooth roots formed of two to five kinds of artificial tooth roots, and the surgical guide being selected from a group of surgical guides formed of one to three kinds of surgical guides.

Composite Bio-Ceramic Dental Implant and Fabricating Method Thereof

A composite bio-ceramic dental implant and fabricating method thereof are disclosed. The composite bio-ceramic is sintered at a temperature between 1000 and 1800° C. using the nearly inert bio-ceramic powder and the active bio-ceramic powder or the completely resorbable bio-ceramic powder. The bioactive bio-ceramic material is dispersed in the inert bio-ceramic material. Therefore, the composite bio-ceramic has enough mechanical strength and good bioactivity for dental implant. 1. A composite bio-ceramic dental implant , comprising:a nearly inert bio-ceramic powder between about 50˜95 wt %; anda bioactive bio-ceramic powder between about 5˜50 wt % well distributed in said nearly inert bio-ceramic powder.2. The dental implant according to wherein said nearly inert bio-ceramic powder is selected one from the group consisting of Zirconium oxide claim 1 , aluminum oxide claim 1 , yttrium stabilized zirconia and any combination thereof.3. The dental implant according to wherein said nearly inert bio-ceramic powder is yttrium stabilized zirconia.4. The dental implant according to wherein said bioactive bio-ceramic powder comprises at least one material or any combination selected from the group consisting of surface bioactive bio-ceramic material claim 1 , and completely resorbable bio-ceramic material.5. The dental implant according to wherein said surface bioactive bio-ceramic material comprises at least one material or any combination selected from the group consisting of hydroxyapatite (HA) claim 4 , and bioactive glass claim 4 , and glass-ceramic claim 4 , and said completely resorbable bio-ceramic material is tricalcium phosphate.6. The dental implant according to wherein said bioactive bio-ceramic powder is tricalcium phosphate.7. The dental implant according to wherein said bioactive bio-ceramic powder have an average particle size between about 10 nm to 10 μm.8. A method of fabricating a dental implant using the materials according to claim 1 , comprising the ...

Method for Manufacturing Dental Implant and Dental Implant

Herein is provide a dental implant for preventing elution of metal when the dental implant is applied within an oral cavity, and for preventing the occurrence of mismatching (bumpy occlusion or the like) when the dental implant is fixed in place. Also provided is a method for manufacturing the dental implant. The abutment manufacturing steps include a ceramic molded body production step for molding a ceramic molded body composition to obtain a ceramic molded body, an assembling step for assembling a titanium member and the ceramic molded body together to obtain an assembled body, a degreasing step for degreasing the assembled body so that the ceramic molded body is transformed into a ceramic degreased body, and a sintering step for sintering the assembled body to transform the ceramic degreased body into a ceramic member so that the ceramic member is firmly fixed to the titanium member.

Coated Dental Articles and Related Methods of Manufacture

Provided are dental articles, and methods of making articles, having an aesthetic inorganic coating based on zirconia at least partially stabilized with yttrium oxide, calcium oxide, cerium oxide, or magnesium oxide. Stabilized zirconia coatings were found to provide a smooth, low friction surface having high abrasion resistance. These coatings are particularly applicable to orthodontic appliances. While virgin stabilized zirconia coatings can often have an undesirable color cast, it was discovered that this color cast can be substantially eliminated by heat treating the coated appliance in an oxygenated environment. The combination of depositing a stabilized zirconia coating and subsequently heat treating to decolorize the coating provides a surprisingly robust, stable, low-friction coating that is also aesthetic. 1. A method of making a coated dental article , the method comprising:providing a dental article having an outer surface; anddepositing on at least a portion of the outer surface a coating comprising zirconia that is at least partially stabilized by an alloying compound selected from the group consisting of yttrium oxide, calcium oxide, cerium oxide, magnesium oxide and combinations thereof2. The method of claim 1 , further comprising heat-treating the coating in an oxygenated environment at a temperature ranging from 300 to 900 degrees Celsius to decolorize the coating.3. The method of claim 2 , wherein the coating is heat-treated at a temperature ranging from 450 to 800 degrees Celsius.4. The method of claim 3 , wherein the coating is heat-treated at a temperature ranging from 600 to 700 degrees Celsius.5. The method of claim 2 , wherein the heat-treated coating displays a Δa* value greater than 0.5 relative to an uncoated article for a white reflectance standard background before heat-treatment and a Δa* value of 0.5 or less relative to an uncoated article for a white reflectance standard background after heat-treatment.6. The method of claim 2 , ...

METHOD OF MAKING A DENTAL RESTORATION

The present disclosure is directed to methods of making a dental restoration comprising making a framework or framework precursor from a ceramic material, making a facing precursor from a glass ceramic material, providing a dental restoration precursor from the framework precursor and the facing precursor, and removing part of the dental restoration precursor to form the dental restoration. 1. A method of making a dental restoration comprising the steps of:providing a dimensionally predetermined framework or framework precursor;providing a dimensionally predetermined facing precursor;providing a dental restoration precursor from the framework/framework precursor and the facing precursor; andremoving part of the dental restoration precursor to form the dental restoration.2. The method of claim 1 , further comprising the steps of providing data defining an outer shape of the dental restoration and providing data defining an outer shape of the dental restoration precursor claim 1 , wherein the outer shape of the dental restoration precursor is oversized relative to the outer shape of the dental restoration.3. The method of claim 1 , wherein the step of providing the framework precursor comprises the steps ofproviding ceramic particles, andadjoining the ceramic particles such that they form an open-celled ceramic body; and wherein the step of providing the facing precursor comprises the steps ofproviding glass ceramic particles, andadjoining the glass ceramic particles such that they form an open-celled glass ceramic body.4. The method of claim 3 , wherein the step of providing the framework precursor comprises the step of shaping the ceramic body by removing a portion of the ceramic body.5. The method of claim 3 , wherein the step of providing the facing precursor further comprises the step of shaping the glass ceramic body by removing a portion of the ceramic body.6. The method of claim 3 , wherein the step of providing the framework precursor comprises the step of ...

METHODS FOR MAKING LAYERED DENTAL APPLIANCES

Methods for making a layered dental appliance. Some methods of the present disclosure can include providing a solid structure (e.g., a die or a dental core, such as a fully sintered ceramic dental core) having a desired outer shape, and applying a slurry to the solid structure to form a first free form layer on the solid structure. The slurry can include at least one of a glass and a glass ceramic. The method can further include firing the first free form layer on the solid structure, and machining the fired first free form layer to a desired shape to form a first article comprising the solid structure and a first shaped layer. Some methods can further include additional applying, firing, and machining steps to achieve a resulting dental appliance having a desired number of layers. Some methods can include removing the solid structure. 1. A method for making a layered dental appliance , the method comprising:providing a dental core having a desired outer shape;applying a slurry to the dental core to form a first free form layer on the dental core, the slurry comprising at least one of a glass and a glass ceramic;firing the first free form layer on the dental core; andmachining the fired first free form layer to a desired shape to form a first article comprising the dental core and a first shaped layer.2. The method of claim 1 , wherein the dental core includes at least one of a fully sintered ceramic claim 1 , a metal claim 1 , a metal alloy claim 1 , a precious metal claim 1 , a precious metal alloy claim 1 , and a combination thereof.3. The method of claim 1 , wherein applying a slurry to the dental core to form a first free form layer includes forming a first free form layer having no prescribed outer shape.4. The method of claim 1 , wherein the slurry has a viscosity such that the first free form layer does not flow off of the dental core before being fired.5. The method of claim 1 , further comprising rotating the dental core while the slurry is applied.6. The ...

Coupling for a multi-part dental implant system

The invention relates to an abutment for use in a dental implant system, wherein the abutment is provided with a guiding and lock means for associating the abutment to a dental implant, the guiding and lock means including: a first conically tapered section; a second substantially non-tapered section arranged apically adjacent to the first section, the second section being provided with an anti-rotational means; and a third substantially circular cylindrical section arranged apically adjacent to the second section, such that to provide axial guiding to the abutment upon the insertion thereof into a dental implant. Further, the invention relates to a dental implant formed in a similar manner.

METHODS, INSERTS, AND SYSTEMS USEFUL FOR ENDODONTIC TREATMENT

Described are devices, methods, inserts, and systems useful in endodontic treatments, involving, for example, a shaped regenerative endodontic insert comprising platelet-fibrin matrix. 1. A shaped regenerative endodontic insert comprising a platelet-fibrin matrix comprising platelets and coagulated fibrin , wherein the shaped insert is shaped to fit a root canal.2. A shaped insert according to claim 1 , wherein the insert is an endodontic insert and the shape comprises a tapered cone.3. A shaped insert according to wherein the insert has an elongate shape including a narrow end claim 1 , a wide end claim 1 , a length between the narrow end and the wide end claim 1 , a diameter at or near the narrow end in a range from 0.3 to 2 millimeters claim 1 , a diameter at or near the wide end in a range from 1.6 to 2.4 millimeters claim 1 , wherein the length is from 15 to 30 millimeters and the insert includes a taper along the length.4. A shaped insert according to comprising additive selected from the group consisting of: growth factor claim 1 , antibiotic claim 1 , a vitamin claim 1 , stem cells claim 1 , and combinations of these.5. A shaped insert according to comprising the platelet-fibrin matrix and an ingredient selected from the group consisting of: β-glycerophosphate claim 1 , vitamin D claim 1 , dexamethasone claim 1 , and combinations thereof.6. A shaped insert according to claim 1 , excluding coagulant and excluding anticoagulant.7. A shaped insert according to claim 1 , including coagulant and anticoagulant.8. A regenerative endodontic insert comprising a platelet-fibrin matrix comprising platelets claim 1 , coagulated fibrin claim 1 , and additive selected from the group consisting of: β-glycerophosphate claim 1 , vitamin D claim 1 , dexamethasone claim 1 , and combinations thereof.9. A method of preparing a shaped regenerative endodontic insert claim 1 , the method comprising:providing blood,concentrating the blood to provide a plasma concentrate comprising ...

Accurate Analogs For Prosthesis Using Computer Generated Anatomical Models

Pre-surgical planning for cranial and facial reconstruction includes preparing a computer generated jaw or skull model for determining a locational position for a dental implant, a surgical bone implant to repair missing bone in the cranium, install ear prostheses, and/or install nose prostheses. The computer generated jaw or skull model is made from medical imagery and computer aided design. A surgical guide is prepared with oversize holes in registration with analogs for the dental or surgical bone implants to be inserted in the jaw or cranial skull model. The surgical guide is fitted atop each analog, and bonded to the jaw or skull model at a predetermined angle of the analog in the jaw or skull. The surgical guide is removed and attached to the jaw or skull of a patient for accurate drilling for insertion of the implants into the jaw or skull of the patient. 1. An anchored anti-rotation analog post for preparing a dental crown for insertion into the mouth of a patient , said analog post comprising:an elongated pin having opposite top and bottom ends;said pin having at least one anti-rotation anchoring member extending discretely with respect to an outer surface of said pin;said analog post insertable within a model of the jaw of the mouth of the patient for preparing an implant post insertable within the law of the patient, wherein the shape and insertion positional location orientation of said implant post insertable within the jaw of the patient is modeled on a predetermined shape and positional locational orientation of said analog post insertable within said model of the jaw of the patient's mouth.2. The anchored anti-rotation analog post as in wherein said anti-rotation member extends radially from said pin.3. The anchored anti-rotation analog post as in wherein said anti-rotation member extends parallel to an axis of said pin.4. The anchored anti-rotation analog post of wherein said at least one anchoring member comprises at least one rod.5. The anchored ...

Dental Implant Assembly, Implant, and Prosthesis to Replace a Nonfunctional Natural Tooth and Related Methods

Dental implant assemblies, custom dental implants, and custom dental prosthesis and components each individually designed and manufactured to replace nonfunctional natural teeth of a specific pre-identified patient are provided. An example dental prosthesis/assembly includes a transgingival interlock abutment having a prosthesis interface formed therein to receive an occlusally-facing dental prosthesis component, and an implant interface form to receive a dental implant body. The prosthesis interface has a custom three-dimensional surface shape formed to create a form locking fit with respect to the occlusally-facing dental prosthesis component when connected herewith. The implant interface also has a custom three-dimensional surface shape formed to create a form locking fit with respect to the dental implant component when connected therewith.

System and process for duplication of dentures

Systems and processes for the duplication of dentures from existing dentures. The interior and exterior of the dentures are scanned and a best fit procedure is used to create a fully digitized denture. The denture teeth are selected from a library that is the closest fit to the original denture teeth. The library teeth are offset a preset distance to compensate for the best fit. The teeth are then subtracted from the digitized denture. The margins of the denture are then cleaned after subtracting the teeth. The denture base is then ready for manufacturing. The teeth are then installed onto the denture base and provided to the patient.

Lithium Silicate Materials

Lithium silicate materials are described which can be easily processed by machining to dental products without undue wear of the tools. 1. A process for manufacturing a lithium silicate dental glass-ceramic article comprising:preparing a lithium silicate blank comprising lithium metasilicate as the main crystalline phase and exhibiting a flexural strength of greater than 180 MPa; andmachining the lithium silicate blank into a dental article.2. The process of further comprising coating the machined dental article.3. The process of further comprising heat treating the machined dental article.4. The process of claim 1 , wherein the step of preparing the lithium silicate blank comprises:{'sub': 2', '2', '2', '5, 'melting a starting glass containing the initial components SiO, LiO and POor other nucleating agent, as the main components;'}forming the molten glass into shaped blanks;subjecting the glass blanks to one or more heat treatments to convert the glass blanks into machinable glass-ceramic blanks comprising lithium metasilicate as the main crystalline phase.5. The process of wherein the starting glass is melted at a temperature within the range of about 1300° C. to about 1600° C.6. The process of wherein the one or more heat treatments to convert the glass blanks into machinable glass-ceramic blanks is/are in the temperature range of from about 450° C. to about 830° C.7. The process of wherein further heat treating the machined dental article is in the temperature range of from about 350° C. to about 850° C.8. The process of wherein the flexural strength is in the range of about 190 to about 400 MPa.9. The process of wherein the lithium silicate blank exhibits a fracture toughness of less than about 2.0 MPam.10. The process of wherein the fracture toughness is less than about 1.5 MPam.11. The process of wherein the machinable phase comprises lamellar or platelet crystals.12. The process of wherein the machinable lithium silicate dental glass-ceramic article further ...

VIRTUALLY DESIGNING A POST AND CORE RESTORATION USING A DIGITAL 3D SHAPE

A method of virtually designing a post and core restoration for attachment in a damaged tooth of a patient, where the tooth includes a bore for receiving the post of the post and core, the method includes obtaining a first 3D scan includes at least a part of the damaged tooth; providing a digital 3D shape adapted to fit the bore of the damaged tooth; virtually matching the first 3D scan of the tooth and the digital 3D shape, where the matching includes matching a surface region in the first 3D scan of the tooth with a corresponding surface region of the digital 3D shape, such that at least part digital 3D shape is represented relative to the first 3D scan of the tooth; and virtually designing the post and core restoration based on the representation of the digital 3D shape relative to the first 3D scan of the tooth. 1. A method of virtually designing a post and core restoration adapted for attachment in a damaged tooth of a patient , where the damaged tooth comprises a bore for receiving the post of the post and core , wherein the method comprises:obtaining a 3D image comprising a first 3D scan comprising at least a part of the damaged tooth;providing a digital 3D shape adapted to fit the bore of the damaged tooth;virtually matching the first 3D scan of the tooth and the digital 3D shape, where the matching comprises matching a surface region in the first 3D scan of the tooth with a corresponding surface region of the digital 3D shape, such that at least part digital 3D shape is represented relative to the first 3D scan of the tooth;virtually designing the post and core restoration based on the representation of the digital 3D shape relative to the first 3D scan of the tooth.2. A method according to claim 1 , further comprising that the digital 3D shape is at least a part of a surface representation adapted for matching at least a part of the bore of the damaged tooth.3. A method according to claim 1 , further comprising that the digital 3D shape is at least a part ...

Implant material, implant component, implant component manufacturing method, laser machining method, and laser machining apparatus

In a hydroxyapatite to be joined to another hydroxyapatite or a bone by laser machining (machining of the bone and the hydroxyapatite includes irradiation of laser light on the bone and irradiation of laser light on the hydroxyapatite), to prevent occurrence of a fracture in a junction and in a peripheral portion of the junction during laser machining, the present invention provides an optimum weight ratio of a cordierite or quartz glass component mixed in the hydroxyapatite. As a mixing ratio of the cordierite or quartz glass component, the cordierite or quartz glass component is mixed at least at a weight ratio equal to or higher than 25.7%.

PROCESS AND APPARATUS FOR COMPUTER-CONTROLLED PREPARATION OF TEETH

The subject of the invention is automation of process and apparatus for computer-controlled preparation of teeth, during said process preparing the tooth-stump(s) holding the prosthetic piece as pillar(s), takes place on basis of a digital plan of three dimensions, with a combined laser head of small size, matching the size of the oral cavity, moving along a trajectory fixed to a frame of face-bow controlled by a computer, preparing teeth-stump(s) before placing into the mouth the prosthetic piece produced by CAD/CAM technique. 1. Process for the automation of dental stump preparation , during which process the designing of the preparation of the dental stump(s) serving as pillar tooth/teeth for the fixing of the prothetic piece—bridge , crown , insert ,—to be placed into the oral cavity takes place by the dentist on basis of a three-dimensional X-ray recording , taken from the relative spot of the jaw , on computer with the help of a designing-program made for this purpose , then , on basis of the complete digital plan , producing the prosthesis takes place with CAD/CAM technology , then on basis of the same digital plan , preparation of the dental stump(s) serving as pillar tooth/teeth takes place also by the dentist with laser head dental milling device ,characterized by that,during the preparation of the dental stump(s){'b': '14', "as Step 1 the dentist, or a professionally qualified person persuades the patient's mandible into maximum opening position with the help of the telescopic frame of maxillo-mandibular fixing () and fixes it there,"}{'b': 26', '25, 'as Step 2 on basis of the complete digital plan the computer directs the combined laser head () in the car () to the pillar tooth to be prepared,'}{'b': 27', '26', '28, 'as Step 3 the laser miller () with mobility towards every direction of the space situated on the combined laser head () directed to the proper spot, carries out the preparation of the pillar tooth on basis of the complete digital plan, ...

DENTAL MODELS AND RELATED METHODS

A dental model and related systems and methods, including a first component representing a portion of a patient's jaw and a second component that is demountably attachable to the first component, and a second component representing a dental structure of interest, such as the remaining portion of a tooth or a dental implant. 1. A dental model comprising:a first component configured to represent a portion of a patient's jaw; andat least one second component that is demountably attachable to the first component, the interface between the first and second components including contact with a plurality of locally protruding portions of at least one of the first and second components, at least some of the plurality of locally protruding portions having a compliance configured to accommodate an interference fit between the first and second components.2. The dental model of claim 1 , comprising a plurality of the second components.3. The dental model of claim 1 , wherein:the first component defines a socket;the second component includes a shaft that is received by the socket and interfaces with the socket when the second component is mounted to the first component; andat least one of the socket and the shaft have at least one of the locally protruding portions.4. The dental model of claim 3 , wherein the socket includes an integral spring feature that pushes the shaft into contact with the socket.5. The dental model of claim 4 , wherein the spring feature pushes the shaft into contact with three protruding portions of the socket that register the shaft relative to the socket laterally to an insertion direction for the second component.6. The dental model of claim 3 , comprising a fastener that engages the shaft to secure the shaft to the socket along an insertion direction for the second component.7. The dental model of claim 3 , wherein the shaft has a substantially rectangular cross-sectional shape perpendicular to an insertion direction of the second component and the ...

Non-Pre-Colored Multi-Layer Zirconia Dental Blank that has a Gradual Change in Translucency through a Thickness After Sintering

A dental block for producing a dental prosthesis comprises a green body including zirconia and having a chemical composition including increasing amounts of yttria through a thickness of the green body. The green body is substantially opaque with a substantially consistent optical characteristic of non-translucency with respect to visible light across the thickness, and is subsequently millable and sinterable to form the dental prosthesis with an optical characteristic of increasing translucency through a thickness of the dental prosthesis.

Dental Devices

The present invention is a dental device comprising natural and sustainable materials. These materials are derived from the nut of the tangua palm tree that may be fashioned into devices for human and animals when replacing one or more teeth of the subject. 1. A dental device comprising a chewing surface:the chewing surface comprising a naturally derived material;wherein the naturally derived material is derived from a vegetable nut.2. The dental device of claim 1 , wherein the naturally derived material comprises an endosperm of Tagua palm nut.3. The dental device of claim 1 , wherein the hardness of the naturally derived material is from about 2.5 to about 4 on the Mohs Hardness Scale.4. The dental device of claim 2 , wherein the naturally derived material comprises a coating of hydroxylapatite.5. The dental device of claim 1 , wherein the device is selected from the group consisting of a bridge claim 1 , a full denture claim 1 , a partial denture claim 1 , a crown claim 1 , a cap claim 1 , and combinations thereof.6. The dental device of claim 5 , wherein the device is a crown.7. The dental device of claim 6 , wherein the naturally derived material matches the color or texture claim 6 , or both color and texture of a human tooth.8. (canceled)9. A method for making a dental device comprising the steps of:a. matching a material derived from a tree nut to a tooth for color or texture;b. milling the material derived from the tree nut to a desired shape, size, or shape and size to form a chewing surface of a dental device.1013-. (canceled)14. The method of claim 9 , further comprising combining the material derived from a tree nut with an additional material.1516-. (canceled)17. A biocompatible composite material comprising:a material derived from a tree nut; andhydroxylapatite.18. The composite material of wherein the material derived from the tree nut is a dehydrated Tagua nut endosperm.19. The composite material of wherein the composite material is in a shape ...

PROCESS FOR PRODUCING A DENTAL ARTICLE, ARTICLE OBTAINABLE BY THIS PROCESS AND USES THEREOF

In one aspect the present disclosure relates to a process for producing a dental article comprising at least two parts, Part A (e.g. coping) and Part B (e.g. veneer), Part A and Part B each having a 3-dim. structure and an outer and an inner surface, the outer surface of Part A having a shape which essentially corresponds to the shape of the inner surface of Part B, Part B comprising a material with a porous section and being produced with the aid of a rapid-prototyping technique, the process comprising a first heating step, wherein Part A is serving as support structure for Part B during said heating step. 1. A process for producing a dental article comprising at least two parts , Part A and Part B , Part A and Part B each having a 3-dim. structure and an outer and an inner surface , the outer surface of Part A having a shape which essentially corresponds to the shape of the inner surface of Part B ,Part A having the shape of a dental coping and comprising a metal, a metal alloy or a metal oxide containing material,Part B comprising a material with a porous section, being produced with the aid of a rapid-prototyping technique without using Part A, Part B having the shape of a dental veneer and comprising a glass or glass ceramic material,the process comprising a heating step, wherein Part A is serving as support structure for Part B during said heating step and a removing step, wherein Part B is removed from Part A after the heating step.3. The process according to claim 1 , the rapid-prototyping technique being selected from ink jetprinting claim 1 , 3d-printing claim 1 , multi jet plotting claim 1 , robo-casting claim 1 , electrophoretic deposition claim 1 , fused deposition modeling claim 1 , selective laser sintering or melting claim 1 , laminated object manufacturing claim 1 , stereolithography claim 1 , photostereolithography or combinations thereof.4. The process according to claim 1 , the rapid-prototyping technique comprising a printing or plotting step.5. ...

PATIENT-SPECIFIC SYSTEM FOR RESTORING MISSING DENTITION

A patient-specific system for restoring missing dentition may include surgical components including a dental implant drilling guide adapted to the patient's dental anatomy, dental implant, drills required to place said implant, and drilling depth and sequence instructions specific to the patient. Further, the system includes a patient-specific healing abutment to form a customized emergence profile, an impression coping with the same emergence profile, a provisional abutment with the same emergence profile, a final abutment with the same emergence profile, a provisional crown or bridge, and a final crown or bridge. The crown or bridge may be screw or cement retained. 1. A patient-specific system for restoring missing dentition comprising:a dental implant drilling guide adapted to the dental anatomy of a patient, a dental implant,one or more drills required to place the implant,drilling depth and sequence instructions specific to the patient,patient-specific components having a customized emergence profile including: a healing abutment, an impression coping, a provisional abutment, and a final abutment;wherein the patient-specific components have the same customized emergence profile geometry.2. The system of claim 1 , further comprising: a provisional crown or bridge; and a final crown or bridge.3. The system of claim 2 , wherein the final crown or bridge is retained using a screw or cement.4. The system of claim 1 , wherein the patient specific components include an implant contact region configured to connect the bottom of the patient-specific components to the dental implant.5. The system of claim 1 , wherein the customized emergence profile geometry of the patient-specific components is designed by computer-aided design (CAD).6. The system of claim 1 , wherein the customized emergence profile geometry of the patient-specific components is designed by computer-aided design (CAD) and the designed geometry is produced by computer-aided machining (CAM).7. The system ...

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 dental prosthesis to be integrated into a receiving jaw bone cavity structure of a pre-identified patient , the dental prosthesis being a finished manufactured product prior to its insertion into the receiving jaw bone cavity structure , the dental prosthesis comprising:a root portion configured to be positioned in and substantially integrated into and adopted by at least one of the following: a jaw bone structure of the pre-identified patient and a periodontal ligament structure of the pre-identified patient, defining the receiving jawbone cavity structure, the root portion having an outer surface, substantial portions of the outer surface having a custom three-dimensional surface shape specifically dimensionally matching an undersized three-dimensional surface shape of corresponding outer surface portions of a root portion of a natural tooth of the pre-identified patient.2. A dental prosthesis as defined in claim 1 , wherein the root portion is configured to be substantially integrated into and adopted by the jaw bone structure of the pre-identified patient claim 1 , the jaw bone structure defining the receiving jawbone cavity structure.3. A dental prosthesis as defined in claim 1 , wherein the portion is configured to be substantially integrated into and adopted by the periodontal ligament ...

CLAMPING DEVICE

A clamping device () for a machine tool () for machining at least one dental workpiece (), wherein the clamping device () has at least one workpiece carrier () for accommodating the dental workpiece () during machining, wherein at least one tool holder () for holding at least one, preferably a plurality of cutting tools () for machining the dental workpiece () is arranged, preferably fixedly, on the workpiece carrier (), and the workpiece carrier () and the tool holder () are fastened or fastenable together as one component on a carrier of the clamping device () in an exchangeable manner by a fastening device () that is non-destructively releasable, preferably without a tool. 1. A clamping device for a machine tool for machining at least one dental workpiece , the clamping device comprising at least one workpiece carrier for accommodating the dental workpiece during machining , at least one tool holder for holding at least one cutting tool for machining the dental workpiece is arranged on the workpiece carrier , and the workpiece carrier and the tool holder are fastened or are fastenable together as one component on a carrier of the clamping device in an exchangeable manner by a fastening device which is non-destructively releasable.2. The clamping device as claimed in claim 1 , wherein the fastening device is at least one of operable or reachable by the end user of the clamping device.3. The clamping device as claimed in claim 1 , wherein the workpiece carrier is mounted together with the tool holder on the carrier so as to be rotatable about a first axis.4. The clamping device as claimed in claim 1 , wherein the carrier comprises a carrying arm which is mounted so as to be rotatable claim 1 , about a second axis which is different from the first axis.5. The clamping device as claimed in claim 4 , wherein the workpiece carrier and the tool holder are mounted together laterally on the carrying arm.6. The clamping device as claimed in claim 1 , wherein the cutting ...

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 ...

UNIVERSAL VENEERING OF FRAMEWORKS OF DENTAL RESTORATIONS

A process for the universal, at least partial, veneering of frameworks made of framework materials of dental restorations having a coefficient of thermal expansion CTEby means of using a ceramic-based veneer material having a coefficient of thermal expansion CTE, wherein a veneer is prepared by a shaping process from a blank of the respective veneer material to be complementary to the framework, and permanently attached to the framework by adhesive bonding, wherein the difference (Δ) between the coefficient of thermal expansion of the framework material, CTE, and the coefficient of thermal expansion of the veneer material, CTE, is outside the range of 0≦Δ<2×10K. 1. A process for a universal , at least partial , veneering of frameworks made of framework materials of dental restorations having a coefficient of thermal expansion CTEby means of using a ceramic-based veneer material having a coefficient of thermal expansion CTE ,wherein a veneer is prepared by a shaping process from a blank of the respective veneer material to be complementary to the framework, andpermanently attached to the framework by adhesive bonding,{'sub': CTE', 'framework', 'veneer', 'CTE, 'sup': −6', '−1, 'wherein the difference (Δ) between the coefficient of thermal expansion of the framework material, CTE, and the coefficient of thermal expansion of the veneer material, CTE, is outside the range of 0≦Δ<2×10K.'}2. The process according to claim 1 , wherein said framework material is selected from the group consisting of a metallic material claim 1 , in particular an alloy of metal claim 1 , a ceramic material claim 1 , and a polymer material.3. The process according to claim 2 , wherein said metallic material is selected from the group consisting of gold-containing metals as well as cobalt- and/or chromium-based metals and alloys thereof.4. The process according to claim 2 , wherein said ceramic material is selected from the group consisting of glass-infiltrated ceramic materials claim 2 , oxide ...

METHOD FOR MANUFACTURING A DENTAL PROSTHESIS

A method of fabricating a dental prosthesis, the method comprising the following steps: 1. A method of fabricating a dental prosthesis , the method comprising the following steps:a) preparing a paste by mixing a particulate filler and a resin suitable for forming a binder phase by hardening;b) hardening the paste prepared in step a), optionally after shaping it, so as to form a solid composite mass;c) optionally cutting the solid composite mass so as to form at least one composite block; andd) optionally machining the composite block so as to form a dental prosthesis;in which method, in step b) the hardening is performed at a pressure greater than 500 bar, and the pressure is returned to atmospheric pressure once all of the resin has hardened.2. A method according to claim 1 , wherein said pressure is greater than 1000 bar.3. A method according to claim 2 , wherein said pressure is greater than 2000 bar.4. A method according to claim 1 , wherein the greatest dimension of the solid composite mass is greater than 15 mm claim 1 , and the smallest dimension of the solid composite mass is less than 30 mm.5. A method according to claim 1 , wherein a temperature higher than 60° C. is applied during step b).6. A method according to claim 5 , wherein a temperature higher than 150° C. is applied during step b).7. A method according to claim 1 , wherein a temperature lower than 220° C. is applied during step b).8. A method according to claim 1 , wherein claim 1 , in step a) claim 1 , no catalyst is added to the paste claim 1 , and wherein a temperature lying in the range 150° C. to 220° C. is applied during step b).9. A method according to claim 1 , wherein a catalyst is added to the paste in step a) claim 1 , and wherein a temperature lying in the range 60° C. to 150° C. is applied during step b).10. A method according to claim 1 , wherein during step b) the pressure is returned to atmospheric pressure when all of the resin has hardened.11. A method according to claim 1 , ...

METHODS OF MAKING MULTILAYER ANATOMICAL ALL-CERAMIC DENTAL APPLIANCES

A method of making a multilayer all-ceramic dental appliance. A first article can be formed of a first material based on a first digital surface representation having a desired outer shape of the dental appliance. A portion of the first article can be removed to form an outer layer comprising a cavity dimensioned to accommodate an inner layer. A second article can be formed by filling the cavity of the first article with a second material. The second article can be further processed, as desired. For example, a desired inner shape can be formed in the second article. Such a desired inner shape can be based on a second digital surface representation of a dental object configured to receive the dental appliance. At least one of the first article, the outer layer, and the second article can be fired, for example, while still being coupled to a support. 116-. (canceled)17. A method of making a multilayer all-ceramic dental appliance , the method comprising:providing a first digital surface representation of a desired outer shape of a dental appliance;providing a dental blank assembly comprising a blank coupled to a support, the blank being formed of a first material, the first material comprising at least one of a glass, a glass-ceramic, a porcelain, and a ceramic;forming a first article of the blank while the blank is coupled to the support, the first article having the desired outer shape based on the first digital surface representation;providing a first assembly comprising the first article coupled to the support;removing an inner portion of the first article, while the first article is coupled to the support, to form an outer layer of the dental appliance comprising a cavity dimensioned to accommodate an inner layer;providing a second assembly comprising the outer layer coupled to the support;forming a second article by filling the cavity of the outer layer with a second material adapted to form the inner layer, the second material comprising at least one of a glass ...

Combination Tool For Anatomical Measurement for Denture Manufacture

A combination tool for defining and measuring anatomical features of a patient for the fabrication of dentures. The tool includes components for preparing a double arch impression, for determining the vertical spacing of the patient's mouth, for measuring the lip, mid line and smile lines of the patient, and for determining the occlusal plane of the patient. This single tool replaces the need for a multitude of tools typically used in preparing for the fabrication of dentures. 1. A tool for measuring anatomical features for the manufacture of dentures , said tool comprising:a lower tray for creating an impression of the lower arch;an upper tray for creating an impression of the upper arch;an adjustment mechanism for adjusting the vertical spacing between said lower tray and upper tray;a lip support for engagement on one of said upper tray and lower tray;a occlusal plane plate; andan attachment mechanism for securing said occlusal plane plate to said tool.2. The tool of wherein said lip support further includes:a horizontal adjustment mechanism to adjust the spacing of said lip support relative to the tray to which it is engaged.3. The tool of wherein said lip support further includes:a horizontal adjustment mechanism to adjust the spacing of said lip support relative to the tray to which it is engaged; andsaid horizontal adjustment mechanism includes a threaded screw for adjusting the horizontal spacing.4. The tool of wherein said lip support further includes:a horizontal adjustment mechanism to adjust the spacing of said lip support relative to the tray to which it is engaged; andsaid horizontal adjustment mechanism includes a click mechanism for adjusting the horizontal spacing.5. The tool of wherein said lip support further includes:a horizontal adjustment mechanism to adjust the spacing of said lip support relative to the tray to which it is engaged; andsaid horizontal adjustment mechanism includes a bold for adjusting the horizontal spacing.6. The tool of ...

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 ...

FIREABLE DENTAL BLANK ASSEMBLY

A fineable dental blank assembly. The assembly can include a blank and a support coupled to the blank to facilitate machining of the blank. The blank can be adapted to be machined to form at least a portion of dental appliance, and can be formed of at least one of a glass, a glass-ceramic, a porcelain, and a ceramic. The support can be formed of at least one of a high melting point metal (or metal alloy) and a ceramic, wherein the blank and the support are separately formed. The assembly can further include a bonding composition positioned between the blank and the support. Other means for coupling the blank and the support can include a direct bond and/or mechanical inter-engagement. The assembly can be configured to withstand temperatures necessary to fire at least a portion of the assembly in a downstream firing process. 1. A fireable dental blank assembly , the assembly comprising:a blank adapted to be machined to form at least a portion of dental appliance, the blank being formed of at least one of a glass, a glass-ceramic, a porcelain, and a ceramic;a support coupled to the blank to facilitate downstream machining processes of the blank, the support being formed of at least one of a high melting point metal and a ceramic, wherein the blank and the support are separately formed; anda bonding composition positioned between the blank and the support to couple the blank and the support, the bonding composition having a bonding temperature that is lower than a softening temperature of the blank and that is lower than a softening temperature of the support;wherein a high melting point metal is a metal or metal alloy that has a melting point that is higher than a firing temperature of the blank, and that is higher than the bonding temperature of the bonding composition;wherein the blank has a first coefficient of thermal expansion (CTE), wherein the support has a second CTE, and wherein the bonding composition has a third CTE, wherein the first CTE and the second CTE ...

LITHIUM SILICATE GLASSES OR GLASS CERAMICS, METHOD FOR PRODUCTION THEREOF AND USE THEREOF

The invention relates to glass ceramics based on the lithium metasilicate system (LiO SiO(LiSiO)), which are mechanically processible in a simple manner in an intermediate stage of the crystallization and, after complete crystallization, represent a high- strength, highly translucent and chemically stable glass ceramic. 115-. (canceled)16. A lithium silicate glass or glass ceramic having the following composition:{'sub': '2', '50 to 70 wt-% SiO,'}{'sub': '2', '15 to 22 wt-% LiO,'}{'sub': 2', '2, '8 to 20 wt-% of a stabilizer selected from ZrOand/or HfO,'}{'sub': 2', '2, '0.1 to 4 wt-% KO and/or NaO,'}{'sub': 2', '3, '0.1 to 4 wt-% AlO, and'}2 to 8 wt-% additives.17. The glass or glass ceramic of with the following composition:{'sub': '2', '50 to 64 wt-% SiO,'}{'sub': '2', '17 to 20 wt-% LiO,'}{'sub': 2', '2, '8 to 20 wt-% of a stabilizer selected from ZrOand/or HfO,'}{'sub': 2', '2, '1 to 3 wt-% KO and/or NaO,'}{'sub': 2', '3, '1 to 3 wt-% AlO, and'}4 to 6 wt-% additives.18. The glass or glass ceramic of with the following composition:{'sub': '2', '55 to 64 wt-% SiO,'}{'sub': '2', '10 to 20 wt-% LiO,'}{'sub': 2', '2, '8 to 20 wt-% of a stabilizer selected from ZrOand/or HfO,'}{'sub': 2', '2, '0 to 5 wt-% KO and/or NaO,'}{'sub': 2', '3, '0.1 to 5 wt-% AlO, and'}0 to 10 wt-% additives.19. The glass or glass ceramic of with the following composition:{'sub': '2', '50 to 60 wt-% SiO,'}{'sub': '2', '10 to 20 wt-% LiO,'}{'sub': 2', '2, '8 to 20 wt-% of a stabilizer selected from ZrOand/or HfO,'}{'sub': 2', '2, '1 to 5 wt-% KO and/or NaO,'}{'sub': 2', '3, '0.1 to 5 wt-% AlO, and'}0 to 10 wt-% additives.20. The glass or glass ceramic of with the following composition:{'sub': '2', '55 to 64 wt-% SiO,'}{'sub': '2', '10 to 20 wt-% LiO,'}{'sub': 2', '2, '10 to 20 wt-% of a stabilizer selected from ZrOand/or HfO,'}{'sub': 2', '2, '0 to 5 wt-% KO and/or NaO,'}{'sub': 2', '3, '0.1 to 5 wt-% AlO, and'}0 to 10 wt-% additives.21. The glass or glass ceramic of with the following ...

Lithium Silicate Materials

Lithium silicate materials are described which can be easily processed by machining to dental products without undue wear of the tools and which subsequently can be converted into lithium silicate products showing high strength. 1. A lithium silicate glass ceramic for dental restorations which comprises:an intermediate phase having a main crystalline phase comprising lithium metasilicate, and wherein the lithium metasilicate comprises lamellar or platelet crystals; anda final phase having a biaxial strength greater than 400 MPa.2. The lithium silicate glass ceramic of claim 1 , wherein the lithium metasilicate forms more than 50 and up to 80 vol.-% of the lithium silicate glass ceramic.3. The lithium silicate glass ceramic of claim 1 , wherein the glass ceramic is in form of a blank or a dental restoration.4. The lithium silicate glass ceramic of claim 3 , wherein the blank is shaped into a dental restoration by machining or pressing.5. The lithium silicate glass ceramic of claim 4 , wherein machining comprises grinding claim 4 , trimming or milling.6. The lithium silicate glass ceramic of claim 4 , wherein the dental restoration is an inlay claim 4 , an onlay claim 4 , a bridge claim 4 , an abutment claim 4 , a facing claim 4 , a veneer claim 4 , a facet claim 4 , a crown claim 4 , a partial crown claim 4 , a framework or a coping.7. The lithium silicate glass ceramic of claim 1 , wherein the biaxial strength of the final phase is in a range of greater than 400 MPa to about 900 MPa.8. The lithium silicate glass ceramic of claim 1 , wherein the final phase comprises lithium disilicate.9. The lithium silicate glass ceramic of claim 1 , comprising SiO claim 1 , LiO and a nucleating agent. This application is a continuation of U.S. application Ser. No. 13/175,370, filed on Jul. 1, 2011, which is a continuation of U.S. application Ser. No. 12/944,578, filed Nov. 11, 2010, now U.S. Pat. No. 7,993,137, which is a continuation of U.S. patent application Ser. No. 12/253,437 ...

METHOD OF SURGICAL PLANNING

A method of pre-operatively forming a surgical splint configured to receive a patient's dentition can include combining a 3-D facial computer model and a 3-D dental computer model. The method includes the step of obtaining a 3-D facial computer model of at least the patient's maxilla, mandible, and dentition from a CT scanner and the step of obtaining a 3-D dental computer model of the patient's dentition with an optical scanner. The 3-D dental computer model is then combined with the 3-D facial computer model to form a composite virtual model. The composite virtual model can be manipulated into a planned post-operative shape, and a surgical splint can be custom constructed to match the planned post-operative shape. The surgical splint can be configured to receive the patient's dentition. 1. A method of pre-operatively forming a surgical splint configured to receive a patient's dentition when the patient's skull is in a post-operative shape , the method comprising:obtaining a 3-D facial computer model in a computer of at least the patient's maxilla, mandible, and dentition, the 3-D facial computer model including first virtual dentition, wherein at least a portion of the first virtual dentition has a first virtual surface geometry that defines at least one first fiduciary marker;obtaining a 3-D optical scan of a surface geometry of the patient's dentition in the computer so as to produce second virtual dentition, wherein at least a portion of the second virtual dentition has a second surface geometry that defines at least one second fiduciary marker;aligning the first fiduciary marker with the second fiduciary marker;after the aligning step, replacing the first virtual dentition of the 3-D facial computer model with the second virtual dentition to form a composite 3-D virtual model, the composite 3-D virtual model having third virtual dentition in a planned post-operative configuration; andconstructing a surgical splint having a negative impression of at least a ...

ARTIFICIAL TOOTH ROOT IMPLANTATION POSITION DETERMINING INSTRUMENT, ARTIFICIAL TOOTH ROOT IMPLANTATION POSITION DETERMINING METHOD, GUIDE MEMBER MANUFACTURING DEVICE, SENSOR, DRILL, ARTIFICIAL TOOTH MANUFACTURING DEVICE, COMPUTER PROGRAM, AND RECORDING MEDIUM

Dentition three-dimensional data and jaw-bone three-dimensional data are collected from a patient and they are combined. According to the combined data, dental crown data for making up for data on a lost tooth and occlusion data on a dental crown represented by the dental crown data are created. When an occlusion force according to the occlusion data is exerted on the occlusion face of a dental crown, a mechanical evaluation factor is produced in a jaw bone. The mechanical evaluation factor produced near the place where an artificial tooth root supporting a dental crown is to be implanted is calculated. The implantation place is determined so that the mechanical evaluation factor may be smaller and the mechanical load on the jaw bone from the opposed tooth during mastication may be lighter. 1. An artificial tooth root implantation position determining instrument for determining the implantation position of an artificial tooth root which supports an artificial tooth that supplements a lost portion of dentition , the instrument comprising:dentition data acquisition module to acquire three-dimensional data relating to said dentition;jaw bone data acquisition module to acquire three-dimensional data relating to the jaw bone connected to said dentition;combining module to combine the three-dimensional data relating to dentition acquired by said dentition data acquisition module and the three-dimensional data relating to the jaw bone acquired by said jaw bone data acquisition module based on occlusion face information;artificial tooth data creating module to create artificial tooth data indicating an artificial tooth that supplements the lost portion of said dentition indicated by the combined data for dentition and jaw bone created by said combining module;candidate receiving module to receive a plurality of candidates for the implantation position of said artificial tooth root on the basis of combined data to which artificial tooth data created by said artificial tooth ...

Modeling and manufacturing of dentures

Disclosed is a method for modeling and manufacturing a denture for a patient, where the denture comprises a gingival part and artificial teeth, wherein the method comprises: providing a 3D scan comprising at least part of the patient's oral cavity; virtually modeling at least part of the denture using the 3D scan; obtaining virtual teeth to represent the artificial teeth; virtually modeling at least one of the virtual teeth to obtain a set of modeled virtual teeth; manufacturing the modeled virtual teeth in a first material; manufacturing the gingival part in a second material; and manufacturing at least part of the denture by means of computer aided manufacturing (CAM).

Method and Apparatus for Preparing a Ceramic Dental Restoration in One Appointment

Methods and apparatus that permit a dentist to provide a patient with a monolithic ceramic dental restoration (e.g., crown, bridge, or the like) in one office visit. In some embodiments, a dentist is provided with a kit containing one or more near net shape (NNS) millable blanks of various shapes and shades, chair-side software, and a chair-side milling machine to convert a selected millable blank into a finished, fully contoured restoration in about one hour or less. Each such millable blank may be, for example, a dental ceramic (e.g., fully sintered zirconia, fully crystallized lithium silicate, fully crystallized lithium disilicate, or the like) NNS component. In some embodiments, the NNS component includes an integral mandrel at a precise location and orientation to minimize the amount of milling time.

Method for designing dental prosthesis structures on implants

Method for modelling positions of implants in the patient's mouth in order to calculate the program for milling the structure of the prosthesis, which can be coupled onto the implants, where the operation of modelling the implants includes: a placing posts, which can be detected by X-ray, on the implants in the patient's mouth; performing a CAT scan of the patient's mouth with the posts; converting the CAT result into a three-dimensional computer model for the CAD/CAM manipulation thereof; defining the posts in the computer model; CAD/CAM modelling of the structure on the computer model with the defined posts; and generating a file containing positions and orientations for calculating the structure milling program.

DEVICE AND METHOD FOR EDITING A VIRTUAL, THREE-DIMENSIONAL DENTAL MODEL BY MEANS OF A VIRTUAL TOOL

The invention concerns a device () for editing a virtual 3-D model () of teeth () positioned in a dental arch () by means of a virtual tool (). The tool () can be used on a first tooth () of the 3-D model (), whereby the corresponding application is carried out on a second mirrored tooth (), contralateral to the first tooth with respect to a plane of symmetry (), that is, on the tooth on the other side of the plane of symmetry (), which is positioned as a mirror image of the first tooth () with respect to the plane of symmetry (). 1. A device for editing a virtual 3-D model of teeth positioned in a dental arch the device comprising a virtual tool the tool for working on a first tooth of the 3-D model , and for performing a corresponding application on a second , mirrored tooth , contralateral to the first tooth with respect to a plane of symmetry , on another side of the plane of symmetry , which is positioned as a mirror image of the first tooth with respect to the plane of symmetry.2. A device in accordance with claim 1 , wherein the corresponding application is of the tool and is performed on the contralateral tooth claim 1 , computer-aided claim 1 , simultaneously with application of the tool on the first tooth.3. A device in accordance with or claim 1 , wherein the tool effects a rotation of the first tooth around a first axis of rotation and a corresponding mirrored rotation of the second tooth around a second axis of rotation.4. A device in accordance with or claim 1 , wherein the tool effects an enlargement or a reduction of the first tooth and of the second tooth by a scale factor.5. A device in accordance with or claim 1 , wherein the tool effects a change in a position of the first tooth with a same orientation and a mirrored change in a position of the second tooth around the plane of symmetry.6. A device in accordance with or claim 1 , wherein the tool effects a change in a shape of a surface of the first tooth and a corresponding mirrored change in a ...

PRODUCTION OF INDIVIDUAL DENTAL PROSTHESES VIA CAD/CAM AND RAPID MANUFACTURING / RAPID PROTOTYPING BASED ON DATA OF THE SITUATION IN THE MOUTH OBTAINED BY DIGITAL MEANS

Summary 1. Method for the production of a complete prosthesis comprisingA) provision of 3D data of the situation in the mouth in the edentulate state;B) digital designing of the denture base for lower and upper jaw each;C) digital positioning of virtual teeth with appropriate occlusion and a tooth shape selected according to aesthetic criteria;{'b': '1', 'D) production of the dental arch using an automated method from the groups of layer-building and of material-removing methods;'}{'b': '2', 'D) production of the denture base using an automated method from the groups of layer-building and of material-removing methods.'}2. Method for the production of a partial prosthesis comprisingA) provision of 3D data of the situation in the mouth in the partially toothed stateB) digital designing of the denture baseC) digital positioning of virtual teeth with appropriate occlusion{'b': '1', 'D) production of the dental arch using an automated method from the groups of layer-building and of material-removing methods;'}{'b': '2', 'D) production of the support structures or fastening elements using an automated method from the groups of layer-building and of material-removing methods.'}3. Method according to claim 1 , comprising{'b': 1', '2, 'D) production of the dental arch using any one of the methods, SLA, inkjet printing, FDM, and CAD/CAM cutting, each from Material- that is suitable for the respective method.'}{'b': 2', '1', '2, 'D) production of the denture base using any one of the methods, SLA, inkjet printing, FDM, SLM, and CAD/CAM cutting, each from Material- or Material- that is suitable for the respective method.'}4. Method according to claim 2 , comprising{'b': 1', '1', '2, 'D) production of the dental arch using any one of the methods: SLA, inkjet printing, FDM, and CAD/CAM cutting from a Material- or Material- that is appropriate for the respective method,'}{'b': 2', '1, 'D) production of the support structures or fastening elements using any one of the methods: SLM ...

Prefabricated Thermoplastic Partial Denture Clasp with Improved Performance Characteristics and Kit Thereof

A pre-form for making a removable partial dental prosthesis. The pre-form has a tree-shape form having a central body portion and at least one arm extending laterally therefrom and a tail and a head positioned on opposite ends of the arm such that the arm is detachably affixed to the central body portion at the tail. The arm is incorporated into a molding for a removable partial dental prosthesis having a base, an artificial tooth supported by the base and a substantially transparent clasp. The clasp and base are formed to mate with oral mucosa for support of the prosthesis thereon. Also disclosed is a kit for making and inserting a partial dental prosthesis in a gap between natural teeth in a human mouth. 1. A pre-form for making a removable partial dental prosthesis , said pre-form having a tree-shape form comprising a central body portion and at least one arm extending laterally from said central body portion; said arm comprising a tail and a head positioned on opposite ends of said arm , wherein said arm is detachably affixed to said central body portion at said tail , said arm being incorporated into a molding for a removable partial dental prosthesis said prosthesis having a base , an artificial tooth supported by said base and a substantially transparent clasp , wherein said clasp is and said base are formed to mate with oral mucosa for support of said prosthesis thereon.2. The pre-form of wherein said arm further comprises a hook positioned at or near said head for securing said clasp to an anchor.3. The pre-form of wherein said anchor is selected from the group comprising teeth claim 2 , posts and removable partial dentures.4. A pre-form for making a removable partial dental prosthesis claim 2 , said pre-form having central core and at least one arm extending laterally from said central body portion; said arm comprising a head portion positioned on said arm claim 2 , wherein said arm is detachably affixed to said central core and said tail being formed by ...

TOOTH PREPARATION GUIDE DEVICE AND METHOD OF PREPARING TOOTH FOR DENTAL PROSTHESIS

Dental preparation uses a tooth preparation guide custom-made for fitting with teeth of a patient. The preparation guide includes one or more guide channels for guiding a cutting tool. The preparation guide enables modification of the teeth as planned with high level of precision. A dental prosthesis for installing onto prepared teeth of the patient is provided before preparation of the teeth. The prosthesis includes features that are complementary to the prepared teeth. The prosthesis can be installed immediately after preparing the teeth using the preparation guide. With the high level of accuracy and precision in the preparation of teeth, no modification of the prosthesis would be needed for installation. 1. A dental preparation guide apparatus in a single body , the single body apparatus comprising a lingual sidewall , a buccal sidewall , and an occlusal wall , which in combination form the single body and define an interior space in which to receive two or more teeth comprising a first tooth and a second tooth ,wherein the lingual sidewall comprises a first lingual sidewall and a second lingual sidewall, the buccal sidewall comprises a first buccal sidewall and a second buccal sidewall, the occlusal wall comprises a first occlusal wall and a second occlusal wall;wherein the first lingual sidewall and the first buccal sidewall oppose each other and are configured to sandwich the first tooth when the first and second teeth are received in the interior space;wherein the second lingual sidewall and the second buccal sidewall oppose each other and are configured to sandwich the second tooth when the first and second teeth are received in the interior space;wherein the first occlusal wall is configured to at least partly overlay the first tooth when the first and second teeth are received in the interior space;wherein the second occlusal wall is configured to at least partly overlay the second tooth when the first and second teeth are received in the interior space; ...

DENTAL CERAMIC ARTICLE, PROCESS OF PRODUCTION AND USE THEREOF

The present disclosure relates to a dental ceramic article comprising ceramic components, the ceramic components having ZrO2 and Al2O3 and at least one component comprising Mn, Er or mixtures thereof, Al2O3 being present in an amount below about 0.15 wt.-% with respect to the weight of the ceramic article. The present disclosure relates also to kit of parts comprising a ceramic article and a colouring solution and processes for producing a dental ceramic article. 1. A dental ceramic article comprising ceramic components , the ceramic components comprising ZrO2 and Al2O3 and colouring components comprising ions or oxides of Mn , Er , or mixtures thereof , Al2O3 being present in an amount from about 0.0001 to about 0.14 wt.-% with respect to the weight of the ceramic components.3. The dental ceramic article according to comprising a stabilizer selected from oxides of Y claim 1 , Mg claim 1 , Ca claim 1 , Ce claim 1 , La and mixtures thereof.4. The dental ceramic article according to having the shape of a dental support structure claim 1 , a dental crown claim 1 , a dental bridge claim 1 , a dental facing claim 1 , an inlay claim 1 , an onlay claim 1 , a mill blank claim 1 , an implant or of an abutment.5. The dental ceramic article according to being contained in a frame or comprising a holding device.6. The dental ceramic article according to being in a pre-sintered stage and being characterized by at least one of the following features:raw breaking resistance: from about 5 to about 55 MPa,{'sup': '3', 'density: from about 2.4 to about 3.7 g/cm,'}porosity: from about 40 to about 60 vol.-%.7. The dental ceramic article according to being in a sintered stage and being characterized by at least one of the following features:breaking resistance: at least about 400 MPa,{'sup': '3', 'density: from about 5.9 to about 6.1 g/cm,'}fluorescence emission in the region of the visible light.8. A kit of parts comprising at least one dental ceramic article and at least one colouring ...

ARTIFICIAL TEETH, METHOD OF DETERMINING GRINDING PORTION, AND METHOD OF MANUFACTURING DENTURE

An artificial tooth where an occlusal surface is formed by grinding has a reference point that represents a position and an angle of the artificial tooth when an occlusal surface of the artificial tooth is obtained by an occlusal-surface form measuring apparatus. The reference point is a convexed spherical surface or a concaved spherical surface arranged on the occlusal-surface. The spherical surface is 3 or more. The convexed spherical surface is fit to the concaved spherical surface when the maxillary artificial tooth and mandibular artificial tooth are occluded. The occluding portion of the artificial tooth has a grinding portion. 1. A method for determining a grinding portion of maxillomandibular artificial teeth , each of which comprising an occlusal surface formed by grinding , a grinding portion disposed in the occlusal surface; and three or more reference points disposed on the grinding portion , the reference points being configured and arranged so as to present a position and an angle of the artificial tooth , the method comprising:a reference point data acquisition step of acquiring a three-dimensional reference point data of an artificial-tooth reference point of the artificial tooth having reference point and an articulator reference point representing a position of an articulator on which upper and lower jaws with the artificial teeth having reference point arranged are attached;a reproduction step of reproducing the positions of artificial teeth of the upper and lower jaws attached on the articulator on a three-dimensional space from the acquired maxillomandibular three-dimensional reference point data; anda grinding data determination step of determining grinding data of a girding portion under a dynamic condition or set condition from a portion surrounded by an image of upper and lower jaws on the three dimensional image in a reproduced occlusal state.2. A method for manufacturing a denture using artificial teeth , each of which comprising an ...

Lithium silicate glass ceramic and glass with ZrO2 content

Lithium silicate glass ceramics and glasses are described which can advantageously be applied to zirconium oxide ceramics in particular by pressing-on in the viscous state and form a solid bond with these. 1. A process for preparing dental restorations comprising shaping of a lithium silicate glass ceramic by(i) pressing or(ii) machiningto the dental restoration,{'sub': '2', 'wherein the glass ceramic comprises at least 6.1 wt.-% ZrO,'}wherein the glass ceramic comprises more than 10 vol.-% of lithium metasilicate crystals or lithium disilicate crystals.2. The process according to claim 1 , wherein the glass ceramic comprises more than 20 vol.-% of lithium metasilicate crystals or lithium disilicate crystals.3. The process according to claim 1 , wherein the glass ceramic comprises more than 30 vol.-% of lithium metasilicate crystals or lithium disilicate crystals.4. The process according to claim 1 , wherein the dental restorations are selected from inlays claim 1 , onlays claim 1 , crowns claim 1 , veneers claim 1 , facings or abutments.5. The process according to claim 1 , wherein the pressing is conducted at a temperature in the range of from 700 to 1200° C.6. The process according to claim 1 , wherein the pressing is conducted at a pressure in the range of from 2 to 10 bar.7. The process according to claim 1 , wherein the machining is carried out in a CAD/CAM process.8. The process according to claim 1 , wherein after the shaping the glass ceramic is heat treated to convert the lithium metasilicate glass ceramic to lithium disilicate glass ceramic.9. The process according to claim 1 , wherein the glass ceramic comprises at least 10.0 wt.-% ZrO.10. The process according to claim 1 , wherein the glass ceramic comprises 55.0 to 71.0 wt.-% SiO.11. The process according to claim 1 , wherein the glass ceramic comprises 9.0 to 17.0 wt.-% LiO.12. The process according to claim 1 , wherein the glass ceramic comprises 0.5 to 12.0 wt.-% nucleating agent claim 1 , and ...

THIN FILM TANTALUM COATING FOR MEDICAL IMPLANTS

A method of depositing a relatively thin film of bioinert material onto a surgical implant substrate, such as a dental implant. Chemical vapor deposition (CVD) may be used to deposit a layer of tantalum and/or other biocompatible materials onto a solid substrate comprised of an implantable titanium alloy, forming a biofilm-resistant textured surface on the substrate while preserving the material properties and characteristics of the substrate, such as fatigue strength. 1. A method for depositing a tantalum coating onto an implant substrate , the method comprising the steps of:providing the implant substrate within a reaction chamber; andchemical vapor depositing the tantalum coating onto the implant substrate at a temperature of 800° C.-900° C. so as to form an angulated textured tantalum coating on the implant substrate, wherein the implant substrate is shielded from excess heat in the reaction chamber by a heat diffusing structure.25-. (canceled)6. The method of claim 1 , wherein the tantalum coating includes a tantalum alloy.7. The method of claim 1 , wherein the heat diffusing structure is porous so as to be penetrable by the tantalum coating within the reaction chamber.8. The method of claim 7 , wherein the heat diffusing structure includes a bottom claim 7 , side walls claim 7 , and an open top.9. A method of implantation claim 7 , comprising:providing a medical implant that includes a metallic substrate with an angulated textured tantalum coating chemical vapor deposited on a surface of the metallic substrate, the angulated textured tantalum coating effective to inhibit biofilm formation on the metallic substrate upon implantation of the metallic substrate in a patient; andimplanting the medical implant in a patient.10. The method of claim 9 , wherein the angulated textured tantalum coating is chemical vapor deposited on the surface of the metallic substrate in a reaction chamber at a temperature between 800° C. and 850° C. claim 9 , and wherein the metallic ...

METHOD FOR PRODUCTING A DENTAL RESTORATION BY CAD CASTING

A method for producing a dental restoration (D) by CAD casting is described, said method comprising the steps of a) recording three-dimensional, digital data of the dentition or of a part of the dentition of a patient, b) creating a virtual dental restoration (VD) using the recorded three-dimensional, digital data, wherein the virtual dental restoration (VD) is expanded in relation to the dental restoration (D) to be produced, c) preparing a model (M) using the created virtual dental restoration, such that the model (M) is expanded in relation to the dental restoration (D) to be produced, d) embedding the model (M) in an embedding compound (EM), e) hardening the embedding compound (EM) and removing the model (M), such that a casting mold is obtained, f) filling the casting mold, preferably by pouring, with a casting material (GM) and cooling the casting material (GM), such that the dental restoration (D) is obtained, and optionally the further steps of c) working the dental restoration (D), and h) veneering the dental restoration (D). 1. A method for producing a dental restoration (D) by CAD casting , comprisinga) recording three-dimensional, digital data of the dentition or of a part of the dentition of a patient;b) creating a virtual dental restoration (VD) using the recorded three-dimensional, digital data, wherein the virtual dental restoration (VD) is expanded in relation to the dental restoration (D) to be produced;c) preparing a model (M) using the created virtual dental restoration, such that the model (M) is expanded in relation to the dental restoration (D) to be produced;d) embedding the model (M) in an embedding compound (EM);e) hardening the embedding compound (FM) and removing the model (M), so that a casting mold is obtained;f) filling the casting mold, preferably by pouring, with a casting material (GM) and cooling the casting material (GM) such that the dental restoration (D) is obtained, and optionally the further steps of,a) working the dental ...

Model plate array for producing dentures

The invention relates to a two-part model plate array for producing dentures. The model plate array comprises a model plate having a dental crown model and sliding elements, and a model base plate having guides. The sliding elements can be inserted into the guides of the model base plate.

DENTAL IMPLANT ABUTMENT AND METHOD FOR MANUFACTURING SAME

Provided are a dental implant abutment and a method of manufacturing the same, and more particularly, a dental implant abutment which forms an outer appearance of an artificial tooth, supports a porcelain prosthesis that is formed of a porcelain, and couples to and fixedly combines with a fixture. The dental implant abutment includes: a first part having a coupling structure that corresponds to an inner structure of the fixture, so that the first part couples to the fixture; a second part that extends upward from the first part and contacts gums; and a third part extending upward from the second part, having an outer circumferential surface which includes a side surface and a top surface, with a porcelain prosthesis attached to the outer circumferential surface, and including a shape in which a concave part, inwardly recessed, is formed on the side and a horizontal cross-sectional area increases in an upward direction from the concave part. 1. A dental implant abutment , which forms an outer appearance of an artificial tooth , supports a porcelain prosthesis that is formed of porcelain , and couples to and fixedly combines with a fixture , the dental implant abutment comprising:a first part having a coupling structure that corresponds to an inner structure of the fixture, so that the first part couples to the fixture;a second part that extends upward from the first part and contacts gums; anda third part extending upward from the second part, having an outer circumferential surface which comprises a side and a top surface, with the porcelain prosthesis attached to the outer circumferential surface, and comprising a shape in which a concave part, inwardly recessed, is formed in the side and a horizontal cross-sectional area increases in an upward direction from the concave part.2. The dental implant abutment of claim 1 , wherein the third part has an irregular and asymmetric outer appearance.3. The dental implant abutment of claim 1 , wherein the third part has a ...

METHOD AND APPARATUS FOR PREPARING DENTURE

In a method of obtaining a gum impression of a patient's mouth and measuring jaw relations, a dental impression tray assembly including a lower tray and an upper tray to fabricate a denture, is used. The lower tray includes a first piece and a pair of second pieces and the upper tray includes a third piece and fourth piece. The method includes inserting the lower tray loaded with an impression material into the mouth to take an impression; taking out the lower tray from the mouth and cutting the impression material along a borderline between the first piece and the pair of second pieces; separating the first piece from the pair of second pieces; attaching an intra-oral tracer to the first piece and inserting the first piece, to which the intra-oral tracer is attached, and the third piece into the mouth to measure the jaw relations. 1. A method of obtaining a gum impression of a patient's mouth and measuring jaw relations using a dental impression tray assembly comprising a lower tray and an upper tray to fabricate a denture , the lower tray comprising a first piece and a pair of second pieces and the upper tray comprising a third piece and fourth piece , the method comprising:loading a first impression material on the lower tray comprising the first piece and the pair of second pieces;inserting the lower tray loaded with the first impression material into the patient's mouth to take a lower impression;taking out the lower tray from the patient's mouth and cutting the first impression material on the lower tray proximate to a borderline between the first piece and the pair of second pieces;separating the first piece from the pair of second pieces such that a first portion of the cut first impression material is retained on the separated first piece and a pair of second portions of the cut first impression material is retained on the separated pair of second pieces;loading a second impression material on the upper tray comprising the third piece and the fourth piece; ...

Surgical guide fabrication

A digital model of a dental implant site can be modified to impart various features aligned to a trajectory for a planned drilling procedure. An object fabricated from the modified model can then be used as a mold to vacuum form or otherwise fabricate a drill guide for the drilling procedure. Numerous variations are possible to fabricate on-surface and off-surface guides, and/or thin layer guides or tube guides suitable for use in dental surgery.

METHOD OF MODIFYING THE GINGIVAL PART OF A VIRTUAL MODEL OF A SET OF TEETH

Disclosed is a method of generating and modifying a virtual model of a set of teeth, where the method provides that a restoration can be inserted into a physical model of the set of teeth manufactured from the virtual model of the set of teeth. 151-. (canceled)52. A method of generating and modifying a virtual model of a set of teeth , said set of teeth comprising a region configured for insertion of a restoration , the region being located in a gingival part of the set of teeth , the method comprises:obtaining at least one three dimensional representation of the set of teeth;generating a virtual model of the set of teeth from said three dimensional representation, where the virtual model of the set of teeth comprises a gingival part, said gingival part comprising a virtual region corresponding to said region configured for insertion of a restoration and at least part of the gingiva surrounding said region;obtaining a virtual model of said restoration; andmodifying the gingival part of the virtual model of the set of teeth such that the virtual model of the restoration can be virtually inserted into said virtual region with no overlap between the volume of said virtual model of the restoration and the volume of said gingival part of the virtual model of the set of teeth.53. The method according to claim 52 , wherein modifying the gingival part of the virtual model of the set of teeth comprises digitally cutting a portion of the gingiva away such that the volume of the restoration and the volume of the gingiva do not overlap.54. The method according to claim 52 , wherein the method comprises subtracting the virtual model of the restoration or the volume enclosed by an offset surface from the virtual model of the set of teeth.55. The method according to claim 54 , wherein an offset is provided between the adjoining surfaces of the virtual model of the restoration and the gingival part of the virtual model of the set of teeth.56. The method according to claim 52 , ...

TITANIUM NANO-SCALE ETCHING ON AN IMPLANT SURFACE

A method of forming an implant to be implanted into living bone is disclosed. The method comprises the act of roughening at least a portion of the implant surface to produce a microscale roughened surface. The method further comprises the act of immersing the microscale roughened surface into a solution containing hydrogen peroxide and a basic solution to produce a nanoscale roughened surface consisting of nanopitting superimposed on the microscale roughened surface. The nanoscale roughened surface has a property that promotes osseointegration. 128-. (canceled)29. A method of forming an implant to be implanted into living bone , the method comprising the acts of:roughening at least a portion of the implant surface to produce a first topography;further roughening the implant surface to produce a second topography superimposed on the first topography; andproviding a nanoscale topography superimposed on the first and second topographies.30. The method of claim 29 , wherein the implant is made of a metal selected from the group consisting of tantalum claim 29 , cobalt claim 29 , chromium claim 29 , titanium claim 29 , stainless steel claim 29 , or alloys thereof.31. The method of claim 29 , wherein the implant is a dental implant.32. The method of claim 31 , wherein the portion of the implant surface is a threaded bottom portion for facilitating bonding with bone.33. The method of claim 29 , wherein the act of roughening the implant surface to produce the first topography comprises grit blasting the surface.34. The method of claim 33 , wherein the first topography includes peak-to-valley irregularity distances of about 10 microns to about 30 microns.35. The method of claim 29 , wherein the implant is made of titanium and the act of roughening the implant surface to produce the second topography comprises:removing a native oxide layer from the implant surface; andacid etching the resulting surface.36. The method of claim 35 , wherein the act of acid etching the surface ...

METHODS, SYSTEMS AND ACCESSORIES USEFUL FOR PROCEDURES RELATING TO DENTAL IMPLANTS

A method and system are provided for manufacturing a physical dental model. A virtual model is provided representative of at least a portion of the intra-oral cavity including at least one dental implant implanted therein, and the virtual model includes a virtual portion representative of each dental implant. The virtual spatial disposition of each such virtual portion is determined with respect to the virtual model, corresponding to a real spatial disposition of the respective implant with respect to the intra oral cavity. A physical model is then manufactured based on the virtual model, the physical model including a physical analog corresponding to each implant at a respective physical spatial disposition with respect to the physical model corresponding to the respective virtual spatial disposition of the respective virtual portion with respect to the first virtual model as already determined. In some embodiments, a jig is provided configured for maintaining a desired physical spatial disposition between the physical analog and a cavity of the physical dental model at least until the physical analog is affixed in the cavity. 1. A system for manufacturing a physical dental model of an intra-oral cavity , comprising:(a) computer system configured for providing a first virtual model representative of at least a part of the intra-oral cavity including at least one dental implant implanted therein, said first virtual model comprising a virtual portion representative of a respective physical portion of a respective said dental implant, said virtual portion being at a virtual spatial disposition with respect to said first virtual model, and for providing an implant spatial disposition of the respective said dental implant with respect to said part of the intra oral cavity based on said virtual spatial disposition;(b) a physical analog corresponding to the or each said implant;(c) a manufacturing system configured for manufacturing the physical dental model, ...

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 ...

MODELING AND MANUFACTURING THE SUPERSTRUCTURE FOR A DENTURE

The present invention relates to a system and a method for providing a model of a superstructure joining a denture and a corresponding dental arch, the method comprising the steps of: 161-. (canceled)62. A method for providing a model of a superstructure joining a denture and a corresponding dental arch , the method comprising the steps of:obtaining a first 3D representation of at least a part of a preliminary model of the denture,obtaining a second 3D representation of at least a part of the dental arch comprising dental implants, andgenerating a model of a superstructure based on the first 3D representation, the second 3D representation, dental implant positions and dental implant orientations.63. The method according to claim 62 , wherein generating a model of a superstructure is further based on template superstructure elements and/or predefined dental and superstructure parameters.64. The method according to claim 62 , wherein the method further comprises:combining the first and second 3D representations to provide a third 3D representation of at least part of the preliminary model of the denture where the gingival side of the third 3D representation corresponds to the second 3D representation.65. The method according to claim 62 , wherein the method further comprises virtually modeling a superstructure based on the second 3D representation and/or the third 3D representation.66. The method according to claim 64 , wherein the method further comprises virtually modeling the final denture based on the third 3D representation claim 64 , wherein individual teeth and gingiva are segmented and each tooth is provided with an individual cut-back depending on position in the dental arch.67. The method according to claim 62 , wherein at least a part of the preliminary model of the denture comprises the teeth side.68. The method according to claim 62 , wherein at least a part of the preliminary model of the denture comprises the gingival side.69. The method 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. 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 ...

SCREW CHANNEL DIRECTING DEVICE FOR A DENTAL SUPERSTRUCTURE AND METHODS FOR MANUFACTURING A DENTAL SUPERSTRUCTURE

A screw channel directing device () for a dental superstructure comprises a screw channel part () and an implant cooperating part (A, B), the former having a screw member seat () with a screw hole in the proximal end. The proximal end of the screw channel part () is bowl shaped, such that the inner bottom surface has a concave shape and its outer bottom surface () has a convex shape. The screw hole of the screw member seat () is a long hole. The implant cooperating part (A, B) comprises a collar-shaped lower implant cooperating part (A) to be connected to a dental implant () and a collar-shaped upper implant cooperating part (B). The lower implant cooperating part (A) has a distal concave seat (), and said upper implant cooperating part (B) has a proximal convex bottom surface () with a radius corresponding to the radius of the concave seat () of the lower implant cooperating part (A) to form a first ball joint (). The upper implant cooperating part (B) has a distal concave seat () with a radius corresponding to the radius of the outer bottom surface () of the screw channel part () to form a second ball joint (). The two ball joints have the effect that the screw channel part () may be tilted/angled and transferred sideways in relation to a central axis of the lower implant cooperation part (A). 1. A screw channel directing device for a dental superstructure , comprising a screw channel part and an implant cooperating part , said screw channel part comprising a screw member seat with a screw hole in the proximal end , wherein the proximal end of the screw channel part is bowl shaped , such that the inner bottom surface has a concave shape and its outer bottom surface has a convex shape , and wherein the screw hole of the screw member seat is a long hole , and wherein said implant cooperating part comprises a collar-shaped lower implant cooperating part to be connected to a dental implant and a collar-shaped upper implant cooperating part , said lower implant ...

METHOD, APPARATUS AND SYSTEM FOR USE IN DENTAL PROCEDURES

A method and system are provided for providing patient data useful for dental procedures, including scanning a dental structure of a patient when coupled to a geometric structure to provide a virtual model representative of the coupling and the dental structure, and relating the virtual model to a body reference of the patient. 1. A method of determining a spatial relationship of at least part of a dental structure of a patient with respect to a reference feature of the patient , the method comprising:receiving, on a computer system, digital scan data representing a virtual model of at least a part of the dental structure coupled with a geometric structure that is aligned with a predetermined reference feature of the patient; anddetermining, using the computer system, a spatial relationship between the part of the dental structure and the predetermined reference feature based at least in-part on: (1) the coupling between at least the part of the dental structure and the geometric structure, and (2) the alignment of the geometric structure with the predetermined reference feature.2. The method of claim 1 , further comprising transmitting output data comprising the spatial relationship for use in a dental procedure.3. The method of claim 1 , wherein the predetermined reference feature comprises a sagittal plane of the patient claim 1 , a visual marking on the patient claim 1 , or a combination thereof.4. The method of claim 1 , wherein the geometric structure comprises a facebow apparatus structurally configured to align with the predetermined reference feature.5. The method of claim 1 , wherein the dental structure comprises one or more teeth claim 1 , a mandibular arch claim 1 , a maxillary arch claim 1 , or a combination thereof.6. The method of claim 1 , wherein the virtual model comprises at least a portion of the patient's maxillary arch and mandibular arch in occlusion.7. The method of claim 1 , wherein the virtual model comprises a first portion of the ...

Porous, silicate, ceramic body, dental restoration and method for the production thereof

The present invention relates to a porous, silicate, ceramic body, possibly with different colors, with a first density, which can be sintered into a silicate, ceramic body with a second density, wherein the ratio of the first density to the second density is 2/5 to 98/100, and the three-point bending strength of the porous, silicate ceramic body with a first density, measured according to ISO 6872, amounts to 25 to 180 MPa.

ARTIFICIAL TEETH

The invention enables artificial molar teeth to be arranged at appropriate positions according to the oral cavity environment of each patient without requiring advanced techniques or experience. The artificial molar teeth have maxillary molar teeth and mandibular molar teeth arranged so as to form a pair on denture bases to be mounted on upper and lower jaws in an oral cavity, in which one cusp out of the cusps of the maxillary molar teeth and the mandibular molar teeth is engaged with a fossa of the antagonist, and at least one of the other cusps is engaged with a groove of the antagonist. 15-. (canceled)6. A method for positioning artificial teeth , the method comprising:arranging a first molar tooth on a first base, the first molar tooth having a lingual cusp and a central groove;arranging a second molar tooth on a second base, the second molar tooth having a fossa and a buccal cusp;adjusting the relative position of the first molar tooth and the second molar tooth, so as to present the first molar tooth and the second molar tooth in a central occlusal position, by:(i) engaging the lingual cusp of the first molar tooth with the fossa of the second molar tooth such that a fossa-cusp engagement is established at a fossa-cusp engagement point; and(ii) rotating at least one of the first molar tooth and the second molar tooth about the fossa-cusp engagement point until the buccal cusp of the second molar tooth engages the central groove of the first molar tooth,wherein one of the first molar tooth and the second molar tooth is a maxillary molar tooth and the other of the first molar tooth and the second molar tooth is a mandibular molar tooth.7. The method of claim 6 , wherein the first molar tooth is one of a first maxillary premolar tooth claim 6 , a second maxillary premolar tooth claim 6 , a first maxillary molar tooth claim 6 , and a second maxillary molar tooth claim 6 , andwherein the second molar tooth is a corresponding mandibular tooth.8. The method of claim ...

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 ...

DENTURE AND METHOD AND APPARATUS OF MAKING SAME

A method for making a denture comprising a base and a plurality of teeth joined thereto. The method comprises forming a first cavity in a block of a denture base material, the first cavity being formed to match the contour of natural teeth as arranged on maxillae or on a mandible; filling the first cavity with a first fluid synthetic tooth material and solidifying the first fluid synthetic tooth material into a first solid synthetic tooth material; removing a portion of the first solid synthetic tooth material to form the plurality of teeth; and removing a portion of the block of denture base material to form the denture base. The steps of the method may be implemented by a computer. An apparatus for making the denture according to certain embodiments of the method, and a denture comprised of a base and artificial teeth are also disclosed. 119-. (canceled)20. An apparatus for making a denture comprised of a base and a plurality of teeth joined to the base , the apparatus comprising:a) a material holding fixture;b) a material removal device; andc) a first fluid synthetic tooth material delivery device;wherein the material removal device is contactable with a block of denture base material held by the fixture so as to remove denture base material and form a first mold cavity in the block for receiving first fluid synthetic tooth material;wherein the first fluid synthetic tooth material delivery device is configured to deliver a first fluid synthetic tooth material into the first mold cavity; andwherein the material holding fixture and material removal device are movable with respect to each other so as to enable the material removal device to remove denture base material from the block and first solid tooth material in the first mold cavity so as to form the denture base and at least a portion of the plurality of teeth.21. The apparatus of claim 20 , further comprising a fluid-to-solid tooth material curing device configured to cure the first fluid synthetic tooth ...

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.

PROSTHETIC TOOTH SUPPORT

Prosthetic tooth support () with at least one prosthetic tooth (), in particular with several prosthetic teeth (), wherein a crown area () of the prosthetic tooth () or of the prosthetic teeth () is embedded, preferably cast, at least partially, preferably completely, in a support layer (). 1. A prosthetic tooth support , comprising at least one prosthetic tooth having a crown area , the crown area of the at least one prosthetic tooth is embedded at least partially in a support layer.2. The prosthetic tooth support as claimed in claim 1 , wherein a neck and root area of the at least one prosthetic tooth protrudes at least partially above the support layer and is freely visible.3. The prosthetic tooth support as claimed in claim 1 , wherein a neck and root area of the at least one prosthetic tooth is embedded at least partially in a cover layer of the prosthetic tooth support.4. The prosthetic tooth support as claimed claim 1 , further comprising a milling machine adapter for the prosthetic tooth support that is secured on the support layer claim 1 , said milling machine adapter protrudes from the support layer and is used to secure the prosthetic tooth support in a milling device during a milling procedure.5. The prosthetic tooth support as claimed in claim 3 , wherein at least one of the support layer or the cover layer has or is comprised of a material having a Vickers hardness of between 10 HV and 200 HV.6. A kit comprised of a prosthetic tooth support as claimed in and of a data record fixed in a tangible medium claim 1 , wherein the data record contains information concerning a shape and a position of the at least one prosthetic tooth in or on the prosthetic tooth support.7. A method for machining at least one prosthetic tooth of a kit as claimed in claim 6 , wherein the prosthetic tooth support of the kit is clamped in a milling device claim 6 , and the data record of the kit is read into a data processor claim 6 , and the milling device is controlled by the ...

RAPID IDENTIFICATION OF DENTAL PROSTHESES

The invention provides ownership identification and manufacturing data of removable or fixed dental prostheses or appliances. This is achieved through the embedding of a unique high resolution 2D Code and 5 digit alpha-numeric identification number printed with a high contrast ink on a translucent adhesive material. The insertion of the 2D Code and identification number is achieved via etching a rectangular indentation in the removable prosthesis with an acceptable Dental Laboratory etching device and securing/protecting it with a clear autopolymerizing acrylic resin. If the dental prosthesis is too small to accommodate the 2D Code and/or Identification Number, an Identification Card is also provided containing an identical Code & Identification Number. 1. A method for storing and accessing information corresponding to a dental prosthesis , the method comprising:defining a cavity in a surface of a dental prosthesis;placing a label within the cavity, the label having at least one unique identifying insignia printed thereon;applying a clear resin over the label; andcuring the applied resin;wherein defining a cavity within a surface of a dental prosthesis comprises etching a cavity in a previously manufactured dental prosthesis or forming a cavity during manufacture of a dental prosthesis; andwherein the at least one unique identifying insignia corresponds to a data record specific to the dental prosthesis stored in a secure database.2. The method of claim 1 , wherein the at least one unique identifying insignia comprises a first unique identifying insignia that is machine-readable and a second unique identifying insignia that is human-readable; andwherein the first and second unique identifying insignia both correspond to the data record specific to the dental prosthesis.3. The method of claim 2 , wherein the first identifying insignia comprises a 2D code claim 2 , and wherein the second identifying insignia comprises an alphanumeric string.4. The method of claim 2 , ...

Method and apparatus for dental crown restorations using prefabricated sleeve-crown pairs

A dental restoration device includes a sleeve having an exterior surface and an interior pocket that is at least partially filled with a dental cement, and a crown having an exterior surface and an interior surface that is mated to the exterior surface of the crown and bonded thereto by an adhesive disposed between the exterior surface of the sleeve and the interior surface of the crown.

HIGH STRENGTH INTRAOSSEOUS IMPLANTS

The present invention enables modification of an intraosseous implant device that is not only biologically non-inert, but can stimulate bone and vascular growth; decrease localized inflammation; and fight local infections. The method of the present invention provides a fiber with any of the following modifications: (1) Nanofiber with PDGF, (2) Nanofiber with PDGF+BMP2, and (3) Nanofiber with BMP2 and Ag. Nanofiber can be modified with other growth factors that have been shown to improve bone growth and maturation—BMP and PDGF being the most common. Nanofiber can be applied on the surface of the implant in several ways. First, a spiral micro-notching can be applied on the implant in the same direction as the threads with the nanofibers embedded into the notches. Second, the entire surface of the implant may be coated with a mesh of nanofibers. Third, it can be a combination of both embedding and notching. 19-. (canceled)10. A threaded intraosseous implant , comprising:a cylindrical device having external threads extending from a root of the device along a helix angle with interspaces located between turns of said threads;grooved surfaces comprising at least one microgroove at the interspaces between thread turns and oriented according to the helix angle of said threads;nanofibers coating said grooved surfaces, said nanofibers substantially aligned with the helix angle of said threads,wherein, said at least one microgroove is adapted to mitigate physiological loading of said nanofibers during insertion of said implant into biological bone.11. The threaded intraosseous implant according to claim 24 , wherein said at least one microgroove exhibits a capacity to hold 18 layers of nanofibers.12. The threaded intraosseous implant of claim 25 , wherein said nanofibers are adhered to said microgrooves.13. The threaded intraosseous implant of claim 26 , further comprising tresyl chloride coupled with fibronectin (FN) coating said grooved surfaces;14. The threaded intraosseous ...

METHOD FOR PRODUCING A DENTAL PROSTHESIS

A method of producing a dental prosthesis produced from a gum part, and prosthetic teeth arranged on the gum part and connected to the gum part. The surface of the dental prosthesis is surface-treated, the surface treatment of the dental prosthesis involving a solvent, and the solvent containing at least one chlorohydrocarbon and at least one methane nitroderivative. 1. A method for producing a dental prosthesis , wherein the dental prosthesis is produced from a gum part and prosthetic teeth arranged on the gum part and connected to the gum part and wherein the surface of the dental prosthesis is subjected to a surface treatment , wherein the surface treatment of the dental prosthesis is effected with a solvent , wherein the solvent contains at least one chlorinated hydrocarbon and at least one nitro derivative of methane.2. The method according to claim 1 , wherein the solvent contains at least one chlorinated hydrocarbon at 50 to 80 percent by weight and at least one nitro derivative of methane at 15 to 45 percent by weight.3. The method according to claim 1 , wherein the production of the dental prosthesis comprises the steps ofproducing the gum part by machining, in particular milling, a first plastic blank,producing the prosthetic teeth by machining, in particular milling, at least one second plastic blank and connecting, in particular gluing, the prosthetic teeth to the gum part to form the dental prosthesis.4. The method according to claim 3 , wherein the connection of the prosthetic teeth to the gum part is effected by the solvent.5. The method according to claim 4 , wherein the prosthetic teeth and the gum part have contact areas claim 4 , via which the prosthetic teeth and the gum part contact each other in the assembled state claim 4 , wherein the connection is effected by depositing the solvent on the contact area of the gum part and/or of the prosthetic teeth before assembly.6. The method according to claim 1 , wherein the at least one chlorinated ...

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 ...

Process for producing dental restoration

The invention is related to a process for producing a dental restoration, the process comprising the steps: —shape a dental restoration out of a shapeable material being placed on a dental situation to be restored in the mouth of a patient, —make an impression of the shaped dental restoration placed on the dental situation to be restored by using a dental impression material, —remove the dental impression material and the shaped dental restoration from the dental situation in the mouth of a patient, —place a curable dental composition in the negative mould of the dental impression material relating to the dental situation to be restored. The invention is also directed to a kit of parts comprising a shapeable material, a curable dental composition, optionally a dental cement, optionally a dental impression material, instruction for use.

REMOVABLE SYSTEM AND METHOD FOR DENTURES AND SURGICAL GUIDES

A removable system and method for helping position and stabilize implant supported dentures during the healing process after surgery is provided, wherein a removable system comprises a soft tissue supported provisional denture structure configured to help position and stabilize the provisional denture during the transfer of the implant positions to the provisional denture. In the surgical process of providing implant-supported dentures, immediately after the implants are surgically implanted, adhesive is applied to the underside of the provisional denture, and implant connectors are seated on the implants. The provisional denture is seated in the patient's mouth wherein the soft tissue supported provisional denture structure helps stabilize and position the denture. The implant connectors adhere to the adhesive and transfer the implant positions to the provisional denture. 1. A removable denture system for facilitating positioning and stabilization of implant-supported provisional dentures , said removable system comprising:an implant supported provisional denture that is positioned onto the implants;a soft tissue supported structure attached to said provisional denture; andone or more connectors configured to attach said soft tissue supported structure to said provisional denture such that said soft tissue supported structure is configured to be cut or broken off by way of said connectors at a location of attachment, allowing for said provisional denture to be trimmed down along a border and thus be ready to stay in the patient's mouth as a provisional implant supported denture during the healing process.2. A removable denture system of wherein said connectors are break line connectors.3. A removable denture system of wherein said connectors are snap connectors.4. A removable denture system of further comprising a bar structure interfaced between implants and said provisional denture.5. A removable denture system of wherein said connectors are spaced and shaped to ...

METHOD AND DEVICE FOR CONTROLLING A COMPUTER PROGRAM BY MEANS OF AN INTRAORAL SCANNER

The present invention relates to a computer program and to a method for controlling the computer program, wherein a control signal is sent to the computer program when an optical marker, in particular a two-dimensional barcode (), is detected by an intraoral scanner (), which signal switches the computer program to a predefined state. A device for controlling the computer program comprises a support () on which at least one optical marker is arranged. The optical marker has an inscription () which indicates a state of the computer program to which the computer program can be switched by detection of the optical marker by the intraoral scanner (). 1. A method for controlling a computer program , wherein , when an optical marker is detected by an intraoral scanner , a control signal is sent to the computer program which switches the computer program to a predetermined state , wherein the computer program is a CAD/CAM program , wherein the predetermined state is a change of an image field , the deletion of an image area , an image calculation , a restoration calculation or an input of a patient's name.22222a,b,c,d. The method according to claim 1 , characterized in that the optical marker is a two-dimensional barcode ().3. The method according to claim 1 , characterized in that the optical marker is applied to a carrier which has at least one optical marker.4. The method according to claim 1 , characterized in that the optical marker is applied to a scan body or consists of a scan body. The present invention relates to a computer program as well as a method and a device for controlling the computer program by means of an intraoral scanner. In addition, the invention relates to a data medium that stores the computer program according to the invention. Furthermore, the invention relates to the use of an intraoral scanner for controlling a computer program and a device that comprises an intraoral scanner and is designed to generate a control signal when an optical marker ...

METHOD FOR CONSTRUCTING TOOTH SURFACES OF A DENTAL PROSTHESIS AND FOR PRODUCING DENTAL RESTORATIONS

The invention relates to a method for constructing tooth surfaces of a dental prosthesis and for producing dental restorations, starting from a 3D data record of an upper mandible layout and a 3D data record of a lower mandible layout, each layout comprising a number of teeth arranged in each mandibular arch and the teeth of the upper mandible layout and the teeth of the lower mandible layout at intercuspation making contact with each other at multiple contact points. The contact surfaces are selected by approximation. Relevant surface pairs lying opposite one another are identified and are incorporated by an optimization algorithm into local minimum distances, taking into consideration surfaces that can slide past one another. This allows the desired contact points to be produced. Surfaces that have not been selected are not considered in the production of the points 1. Method for construction of tooth surfaces of a dental prosthesis part as well as for producing dental restorations , starting from a 3D data record of a maxilla layout and a 3D data record of a mandible layout , each with a plurality of teeth arranged in the respective arch of the jaw , wherein the teeth of the maxilla layout and the teeth of the mandible layout have a multi-point contact with numerous contact points in intercuspation , characterized in that the allocation is performed with contact optimization , in thata common occlusal direction is automatically determined from the 3D data record of the maxilla layout and from the 3D data record of the mandible layout,the position of the teeth in the arch of the jaw is determined automatically in the 3D data record of the maxilla layout and in the 3D data record of the mandible layout,on the basis of the position of the teeth in the arch of the jaw, as expected, surface elements that are at least approximately opposite one another are identified automatically on at least one side, andon at least one side of the opposing surface elements, the ...

DENTAL PROSTHESIS MOLDING BLOCK AND METHOD FOR PRODUCING A DENTAL PROSTHESIS PART FROM THE DENTAL PROSTHESIS MOLDING BLOCK

The present invention relates to a dental prosthesis molding block () for producing a dental prosthesis part. The block comprises an inner material () that is at least partially surrounded by an outer material (), the hardness of which differs from the hardness of the inner material (). The inner material () forms part of a first surface () of the dental prosthesis molding block (). The invention further relates to a method for producing a dental prosthesis part. In said method, a dental prosthesis molding block () is provided, and the dental prosthesis part is produced by removing material from the dental prosthesis molding block () using a CAD/CAM process. In doing so, a pin having a self-tapping external screw thread is created. 1. Dental prosthesis molding block for producing a dental prosthesis part , comprising an inner material which is at least partially surrounded by an outer material , the hardness of which differs from the hardness of the inner material , wherein the inner material forms a part of a first surface of the dental prosthesis molding block wherein the dental prosthesis molding block includes an internal screw thread , which extends into the inner material from a second surface opposite to the first surface.2. (canceled)3. Dental prosthesis molding block according to claim 1 , wherein the inner material has a lower hardness than the outer material.4. Dental prosthesis molding block according to claim 3 , wherein the inner material is a metal and the outer material is a ceramic.5. Dental prosthesis molding block according to claim 3 , wherein the inner material and the outer material are metals.6. Dental prosthesis molding block according to claim 1 , wherein the inner material has a greater hardness than the outer material.7. Dental prosthesis molding block according to claim 6 , wherein the inner material is a ceramic.8. Dental prosthesis molding block according to claim 1 , further comprising an opening having the internal screw thread claim ...

Reduction or Guidance Coping

A computer-implemented method of generating a reduction coping includes receiving a digital model comprising a virtual preparation tooth, determining one or more virtual reduction regions on the virtual preparation tooth, and generating a virtual reduction coping comprising one or more exposed regions corresponding to the one or more virtual reduction regions. A method of generating a physical reduction coping includes receiving a 3D digital model of a virtual reduction coping and performing additive manufacturing to generate a physical reduction coping from the virtual reduction coping.

DIGITAL INTEGRATED MOLDING METHOD FOR DENTAL ATTACHMENTS

A digital integrated molding method for dental attachments includes 3D design, aiming at acquiring 3D data of an attachment itself through 3D scanning of an attachment preform, carrying out modeling design directly on the basis of acquired data, adjusting corresponding positions of an inner-crown and an attachment, or a bridge and an attachment by design software, and directly designing the attachments of the inner-crown and the bridge into a whole; data processing, aiming at slicing the integrated inner-crown and attachment or bridge and attachment for additive manufacturing; and additive manufacturing, aiming at processing an integrated inner-crown, bridge or attachment. The molding method can greatly improve the molding accuracy of dental attachments, and ensure the relative accuracy of inner-crowns, bridges or attachments. 111-. (canceled)12. A digital integrated molding method for dental attachments , comprising the steps of:3D design: aiming at obtaining the data of a related part and an attachment, adjusting the relative position thereof, and designing the related part and the attachment directly as a whole;data processing: aiming at slicing the integrated related part and attachment required for additive manufacturing; andadditive manufacturing: printing the integrated related part and the attachment through additive manufacturing according to the slicing processing results;the additive manufacturing adopts the selective laser melting technology, and the plane scanning includes the following area scanning:contour scanning: scanning along the outer contour of the plane;internal stripe scanning: scanning the stripe in the internal area of the plane;{'b': '1', 'claim-text': {'br': None, 'i': D', 'ah, '1=·tanα'}, 'upper skin scanning: scanning the upper skin area inside the contour line, wherein the upper skin area is located on the side of the plane close to the upper surface of the preform, and the upper skin area is located between the outer contour line and ...

Abutment Tool Set, And Device For Producing Dental Replacements

Device for producing tooth replacements, which device has a milling cutter (36) for shaping the front face of the tube portion (16), which milling cutter (36) has at least one abutment face which is intended to bear at least indirectly on a surface of the abutment (10), in particular on the collar (14) of the abutment, and via which milling cutter (36) the length or height of the tube portion (16) of the abutment (10) can be fixed, in particular the tube portion can be shaped. Tool set consisting of a milling cutter (36) and of a sleeve (42), wherein at least one abutment face (76) is formed on the milling cutter and extends towards the sleeve (42), and wherein the sleeve (42) has a supporting face (78), in particular for supporting on an abutment (10).