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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Форма поиска

Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
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Применить Всего найдено 2875. Отображено 100.
10-05-2012 дата публикации

Dental material with color indicator and methods of using same

Номер: US20120115109A1
Автор: Xiangxu Chen, Xuejun Qian
Принадлежит: Kerr Corp

A dental material is provided that exhibits a color change upon or after mixing or contacting components of the composition. The composition includes an acidic component in one part, and a basic component in another part that upon contact with the acidic component initiates a chemical reaction thereof that alters the pH of the composition. An acid or base sensitive color change agent is present in the composition that registers the change in pH by changing color as the pH changes.

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10-01-2013 дата публикации

One-part dental adhesive composition

Номер: US20130012615A1
Принадлежит: Kuraray Noritake Dental Inc

The present invention provides a one-part dental adhesive composition that exhibits excellent adhesive property and bond durability to a tooth structure (particularly dentin) and has high stability to ambient light, in which respective components have been mixed uniformly. The present invention is a one-part dental adhesive composition including a polymerizable monomer (A) having an acidic group, a polymerizable monomer (B) having a fluorocarbon group represented by the general formula (1), water (C), and a polymerization initiator (D). A content of the polymerizable monomer (A) having an acidic group is 5.5 to 35 parts by weight in 100 parts by weight of the total amount of polymerizable monomers. (In the formula, R 1 denotes a hydrogen atom or a methyl group, and Rf denotes a fluoroalkyl group having 1 to 20 carbon atoms.)

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31-01-2013 дата публикации

Kit and method for producing bone cement

Номер: US20130030058A1
Принадлежит: HERAEUS MEDICAL GMBH

A kit for producing bone cement includes at least one paste A and one paste B. Paste A contains at least one monomer (a1) for radical polymerization; at least one polymer (a2) insoluble in monomer (a1); at least one polymer (a3) soluble in monomer (a1); and at least one radical polymerization initiator (a4). The weight ratio of the at least one polymer (a2) to the at least one polymer (a3) is at least 2 to 1. Paste B contains at least one monomer (b1) for radical polymerization; at least one polymer (b2) and at least one accelerator (b3) soluble in monomer (b1); and optionally a polymer (b4) insoluble in monomer (b 1 ). The maximum quantity of polymer (b4) is 5% by weight, relative to the total weight of paste B. The weight ratio of polymer (b4) to the at least one polymer (b2) is no more than 0.2.

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14-11-2013 дата публикации

Dental prosthetics comprising curable acrylate polymer compositions and methods of their use

Номер: US20130302513A1
Принадлежит: Scientific Pharmaceuticals Inc

Disclosed herein are acrylic and methacrylic acid ester-based polymeric materials containing as flexibilizing and brittleness reducing agents 1-60% of C 4 -C 8 polyalkylene or polyalkyldiene compounds, preferably having a molecular weight of 300-2100, and the use of such materials in dentistry and medicine.

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20-02-2014 дата публикации

Methods of using in situ hydration of hydrogel articles for sealing or augmentation of tissue or vessels

Номер: US20140052168A1
Автор: Amarpreet S. Sawhney
Принадлежит: INCEPT LLC

Pharmaceutically acceptable hydrogel polymers of natural, recombinant or synthetic origin, or hybrids thereof, are introduced in a dry, less hydrated, or substantially deswollen state and rehydrate in a physiological environment to undergo a volumetric expansion and to affect sealing, plugging, or augmentation of tissue, defects in tissue, or of organs. The hydrogel polymers may deliver therapeutic entities by controlled release at the site. Methods to form useful devices from such polymers, and to implant the devices are provided.

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03-04-2014 дата публикации

Compositions, methods and kits for remineralization and inhibition of dental caries in teeth

Номер: US20140093457A1
Автор: Shigemi Nagai
Принадлежит: Harvard College

Methods, compositions and kits are provided for enhancing remineralization of a tooth or bone containing hydroxyapatite and inhibiting caries progression or loss of hydroxyapatite using a bisphosphonate or pyrophosphonate. The tooth or tooth surface contains a trauma or defect, for example the tooth contains a caries that is identified using a detectable probe. The bisphosphonate or pyrophosphonate is contacted to the tooth and/or oral cavity and binds to the hydroxyapatite material in the tooth or bone and prevents loss of hydroxyapatite material or strengthens the hydroxyapatite. The amount and extent of enhanced remineralization or of inhibition of caries progression and loss of hydroxyapatite are determined by techniques including photography, light microscopy and fluorescence microscopy.

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07-01-2021 дата публикации

POWDER-LIQUID TYPE RESIN-REINFORCED DENTAL GLASS IONOMER CEMENT COMPOSITION

Номер: US20210000699A1
Автор: KIMOTO Katsuya, UCHIDA Jun
Принадлежит: SHOFU INC.

An object of the present invention is to provide a dental resin-reinforced glass ionomer cement composition which exhibit high surface curability even under wet conditions, which makes it difficult for the surface to become cloudy even if moisture comes in contact with at the initial stage of curing, exhibits high mechanical properties, low water absorption expansion and excellent coloring resistance in the set product and is also excellent in storage stability. The dental resin-reinforced glass ionomer cement composition consisting of a powder material and a liquid material, wherein the powder material contains (a) acid-reactive glass powder, the liquid material contains (b) water, (c) polymer of acidic group-containing polymerizable monomer, (d) hydroxyl group-containing (meth)acrylate-based polymerizable monomer and (e) tri or more functional (meth)acrylamide-based polymerizable monomer, and at least one of the powder material and the liquid material contains (f) polymerization initiator. 1. A dental resin-reinforced glass ionomer cement composition consisting of a powder material and a liquid material , whereinthe powder material contains (a) acid-reactive glass powder,the liquid material contains (b) water, (c) polymer of acidic group-containing polymerizable monomer, (d) hydroxyl group-containing (meth)acrylate-based polymerizable monomer and (e) tri or more functional (meth)acrylamide-based polymerizable monomer, andat least one of the powder material and the liquid material contains (f) polymerization initiator.2. The dental resin-reinforced glass ionomer cement composition of claim 1 , whereinat least one of the powder material and the liquid material contains (g) acidic group-containing polymerizable monomer.3. The dental resin-reinforced glass ionomer cement composition of claim 1 , whereinthe (c) polymer of acidic group-containing polymerizable monomer is a polymer of an α,β-unsaturated carboxylic acid.4. The dental resin-reinforced glass ionomer cement ...

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13-01-2022 дата публикации

ONE STEP GINGIVA RETRACTION AND IMPRESSION MATERIAL AND METHOD

Номер: US20220008173A1
Автор: DUBEY Ryan
Принадлежит:

A dental retraction and impression system providing self-retracting and impression taking of a prepared tooth in one step. Paired setting materials simultaneously retract gingiva, widen a sulcus around the tooth, and take an impression of the tooth and margins. A low viscosity setting gingival retracting impression material having an astringent and a high viscosity setting impression material set together. The high viscosity setting impression material is heavy body and has a higher viscosity than the low viscosity setting gingival retracting material so as to force the low viscosity setting gingival retracting impression material into the gingival space or sulcus. 1. Paired setting dental gingival retraction impression materials comprising:a setting low viscosity dental impression material;a retracting agent mixed within said setting low viscosity dental impression material;a setting high viscosity dental impression material, wherein said setting low viscosity dental impression material is configured to have a harder onset earlier than said setting low viscosity dental impression material.2. Paired setting dental gingival retraction impression materials as in wherein:said setting low viscosity dental impression material has a viscosity ranging from 120,000 to 150,000 cP; andsaid setting high viscosity dental impression material has a viscosity greater than 150,000 cP.3. Paired setting dental gingival retraction impression materials as in wherein:said setting high viscosity dental impression material has a viscosity greater than 400,000 cP.4. Paired setting dental gingival retraction impression materials as in wherein:said retracting agent is selected from the group consisting of aluminum chloride, aluminum potassium sulfate, aluminum sulfate, alum, or ferric sulfate.5. Paired setting dental gingival retraction impression materials as in wherein:said retracting agent comprises aluminum sulfate.6. Paired setting dental gingival retraction impression materials as in ...

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14-01-2021 дата публикации

ANTISEPTIC AND/OR ANTI-INFLAMMATORY GEL FOR TREATMENT OF ORAL CAVITY DISEASES COMPRISING POLYVINYL ALCOHOL AND POLYACIDS

Номер: US20210007983A1
Автор: CHIARELLI Piero
Принадлежит:

Product for the therapeutic treatment for the prevention and cure of oral cavity diseases of teeth and dental implants including a mixture in a polyvinyl alcohol aqueous solution, of one or more polyacids or their salts, of one or more antiseptics and/or anti-inflammatories, capable of obtaining in situ a protective and adhesive barrier, capable of facilitating the bioavailability of the aforementioned medicinal products, antiseptics and anti-inflammatories. 1. Product for the hygiene , cosmetics or oral or dental care , comprising a mixture , in a polyvinyl alcohol aqueous solution , of one or more polyacids or their salts , of one or more antiseptics and/or anti-inflammatories.2. The product according to claim 1 , wherein polyvinyl alcohol has a molecular weight comprised between 10 and 1 claim 1 ,000 claim 1 ,000 claim 1 , and a concentration comprised between 0.0001% and 30% w/w.3. The product according to claim 1 , wherein the polyacids and their salts are selected from among the group consisting of polyacrylic acid and its monovalent salts and they have a molecular weight comprised between 10 and 5 claim 1 ,000 claim 1 ,000 and a concentration comprised between 0.0001% and 30% w/w.4. The product according to claim 1 , wherein the polyacids and their salts are selected from among the group consisting of alginic acid and its alginates of monovalent salts and they have a concentration comprised between 0.0001% and 30% w/w.5. The product according to claim 1 , wherein said polyacid salt is the high molecular weight sodium alginate claim 1 , with viscosity greater than 40 centipoises at 20° C. in solution at 1.5% w/w and with a concentration comprised between 0.0001% and 5% w/w.6. The product according to claim 1 , wherein the antiseptic is selected from among the group consisting of chlorhexidine gluconate claim 1 , chlorhexidine dihydrochloride claim 1 , iodine claim 1 , silver ions and any combination thereof.7. The product according to claim 1 , any wherein the ...

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03-02-2022 дата публикации

TOOTH MINERALIZATION SOLUTION AND MINERALIZATION METHOD THEREOF

Номер: US20220031575A1
Принадлежит:

Disclosure is a tooth mineralization solution and a mineralization method thereof. The tooth mineralization solution can be used to mineralize collagen and teeth. The mineralization solution component of the present application comprises two parts, namely, reagent A containing non-collagenous protein analogue and calcium salt, and reagent B is phosphate solution. The mineralization method of the tooth mineralization solution of the present application comprises the steps of first applying the reagent A to the surface of tooth, and then applying the reagent B to achieve tooth mineralization. In addition, the mineralization solution of the present application can also be used to achieve biomimetic mineralization of collagen by the same method, comprising the steps of soaking or floating single-layer reconstituted collagen fibril, collagen gel or collagen sponge in the reagent A, and then soaking or floating in the reagent B to achieve biomimetic mineralization. 1. A tooth mineralization solution , comprising a reagent A and a reagent B;wherein the reagent A is a solution comprising non-collagenous protein analogue and calcium salt; the non-collagenous protein analogue is one or more of a group consisting of polyaspartic acid, polyacrylic acid, polyvinylphosphonic acid, polyglutamic acid, carboxymethyl chitosan, sodium trimetaphosphate or sodium tripolyphosphate; the calcium salt is one or more of a group consisting of calcium chloride or a hydrate thereof, calcium fluoride or a hydrate thereof, calcium carbonate or a hydrate thereof, calcium nitrate or a hydrate thereof, or calcium acetate or a hydrate thereof; in the reagent A, the non-collagenous protein analogue accounts for 0.001 g/L-20 g/L, and a concentration of calcium ions is 0.001 mol/L-10 mol/L;the reagent B is a phosphate solution; the phosphate is one or more of a group consisting of trisodium phosphate, tripotassium phosphate, disodium hydrogen phosphate, dipotassium hydrogen phosphate, sodium dihydrogen ...

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21-01-2021 дата публикации

DENTAL ADHESIVE MATERIAL KIT

Номер: US20210015716A1
Принадлежит: KURARAY NORITAKE DENTAL INC.

The present invention provides a dental adhesive material kit that exhibits high adhesive property to tooth structure and dental prosthesis through photopolymerization while maintaining good ease of handling with the paste properties that undergo little change during long storage. The present invention relates to a dental adhesive material kit comprising: 1. A dental adhesive material kit , comprising:an aqueous adhesive dental composition; anda curable dental composition, a radical polymerizable monomer comprising an acidic group;', 'a polymerization accelerator;', 'water; and', 'a radical polymerizable monomer containing no acidic group,, 'wherein the aqueous adhesive dental composition comprises a hydrophilic radical polymerizable monomer containing no acidic group;', 'a hydrophobic radical polymerizable monomer containing no acidic group;', 'a chemical polymerization initiator;', 'a photopolymerization initiator; and', 'a filler,, 'wherein the curable dental composition compriseswherein the filler is treated with a surface treatment agent, and the filler has an average particle diameter of 0.01 to 50.0 μm, {'br': None, 'sub': 2', '2', 'p', 'q', '(3−q), 'sup': 1', '2', '3, 'CH═C(R)—COO—(CH)—Si—RR\u2003\u2003[1],'}, 'a silane coupling agent represented by the following general formula [1],'}, 'wherein the surface treatment agent comprises [{'sup': '1', 'Ris a hydrogen atom or a methyl group;'}, {'sup': '2', 'Ris an optionally substituted hydrolyzable group;'}, {'sup': '3', 'sub': 1', '3, 'Ris an optionally substituted Cto Calkyl group;'}, 'p is an integer of 1 to 13; and', 'q is 2 or 3; and, 'wherein {'br': None, 'sup': 4', '5', '6', '7', '8', '9, 'RRR—Si—NH—Si—RRR\u2003\u2003[2],'}, 'an organosilazane represented by the following general formula [2],'} [{'sup': 4', '5', '6, 'sub': 1', '3, 'R, R, and Reach independently represent a hydrogen atom or an optionally substituted Cto Calkyl group;'}, {'sup': 4', '5', '6, 'sub': 1', '3, 'at least one of R, R, and Ris an ...

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16-01-2020 дата публикации

Dental adhesive composition including chain transfer agent

Номер: US20200016043A1
Принадлежит: Shofu Inc

To provide a dental adhesive composition comprising: (a) an acidic group-non-containing polymerizable monomer, (b) an acidic group-containing polymerizable monomer, (c) a filler, (d) a photo polymerization initiator, and (e) a chain transfer agent, wherein the chain transfer agent (e) contains α-alkylstyrene compound.

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26-01-2017 дата публикации

Adhesive dental materials with strongly acidic adhesive polymers

Номер: US20170020791A1
Принадлежит: IVOCLAR VIVADENT AG

Radically polymerizable dental material which contains at least one radically polymerizable oligomer or polymer with strongly acidic groups, which has a number-average molecular weight of 1,000 to 200,000 g/mol.

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25-01-2018 дата публикации

Antimicrobial polymeric compositions containing metal containing methacrylates

Номер: US20180021225A1

Metal-containing methacrylates incorporated into polymeric materials with antimicrobial capacity for biomedical applications, and more particularly for dental purposes, are provided. The incorporation of metal-containing methacrylates such as calcium methacrylate, tin methacrylate, copper methacrylate, silver methacrylate, in combination or alone, for potentializing antimicrobial effect of cements, in particular, to biomaterial compositions including metal containing methacrylates, such as calcium, tin, copper, silver, nickel, titanium and iron methacrylates, in the formulation of biomaterials for applications in human health provides advantages, particularly in dentistry, and allows for expressive antimicrobial activity to dental compositions, so as to be useful in dental prosthesis, operative dentistry, orthodontics, pediatric dentistry, implantodontics, and endodontics.

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17-02-2022 дата публикации

COMPOSITIONS AND MEDICAL DEVICES COMPRISING ANTI-MICROBIAL PARTICLES

Номер: US20220046915A1
Принадлежит: NOBIO LTD.

This invention relates to compositions and medical devices comprising anti-microbial active particles, for inhibiting microbial growth. This invention further provides methods of making such compositions and medical devices. 3. The composite of claim 1 , wherein the particles are dispersed in the polymeric material.4. The composite of claim 1 , wherein the core of the particles comprises silica.5. The composite of claim 4 , wherein the silica is selected from the group consisting of amorphous silica claim 4 , dense silica claim 4 , aerogel silica claim 4 , porous silica claim 4 , mesoporous silica and fumed silica.6. The composite of claim 1 , wherein the inorganic polymer is selected from the group consisting of silicone polymers ceramics claim 1 , metals claim 1 , and combinations thereof.7. The composite of claim 1 , wherein the inorganic core is polyhedral oligomeric silsesquioxane (POSS).8. The composite of claim 1 , wherein the weight ratio of the anti-microbial particles which are represented by structure (1) to the polymeric material is between 0.25-5%.9. The composite of claim 1 , wherein the particles are a mixture of different particles.10. The composite of claim 1 , wherein said composition is capable of filling of tooth decay cavities claim 1 , is a dental restorative endodontic filling material for filling root canal space in root canal treatment claim 1 , or is selected from the group consisting of a dental restorative material intended for provisional and final tooth restorations or tooth replacement claim 1 , a dental inlay claim 1 , a dental onlay claim 1 , a crown claim 1 , a partial denture claim 1 , a complete denture claim 1 , a dental implant claim 1 , a dental implant abutment claim 1 , and a cement intended for permanently cementing crowns bridges claim 1 , onlays claim 1 , partial dentures and orthodontic appliances onto tooth enamel and dentin.11. The composite of claim 1 , wherein the anti-microbial active groups have a surface density of ...

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17-02-2022 дата публикации

DENTAL COMPOSITION

Номер: US20220047465A1
Принадлежит:

One embodiment of the present invention relates to a dental composition including a (meth)acrylate, an ultraviolet absorber, and a fluorescent agent, wherein the ultraviolet absorber has free of a maximum absorption wavelength in a range of greater than 320 nm and less than or equal to 500 nm. 1. A dental composition comprising:a (meth)acrylate;an ultraviolet absorber; anda fluorescent agent,wherein the ultraviolet absorber has free of a maximum absorption wavelength in a range of greater than 320 nm and less than or equal to 500 nm. The present invention relates to a dental composition.In dental treatment, a paste-like photocurable composition commonly referred to as a composite resin is used to repair teeth damaged by caries, fractures, or the like.It is demanded for the cured resin tooth of a composite resin to have aesthetic appearance similar to that of natural teeth. In addition to a high color matching of each patient's natural teeth with a cured resin tooth, it is also important for the composite resin to have high photostability so that there is minimal color change when the composite resin is exposed to ultraviolet light. In fact, it is required that color changes cannot be readily recognized by the naked eye when a cured resin tooth of a composite resin is exposed to sunlight for 10 hours in accordance with JIS T 6514.Therefore, a benzotriazole compound is included as an ultraviolet absorber in the composite resin (see, for example, Patent Document 1).In addition, a phthalate ester fluorescent agent is included in the composite resin (see, for example, Patent Document 1) because natural teeth absorb ultraviolet light and emit weak fluorescence.In contrast, LED lights emitting a variety of colors have become familiar in recent years due to the development of LEDs. Near-ultraviolet light is less harmful to the human body than ultraviolet light. Therefore, near-ultraviolet LED light has increasingly used in medical practice.A phthalate ester-based ...

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03-03-2022 дата публикации

DENTAL ENAMEL COMPOSITIONS WITH ANTI-INFLAMMATORY AGENTS FOR ANIMALS

Номер: US20220061974A1
Принадлежит:

Provided are methods and compositions relating to a dental composition more specifically to prepare the damaged dentin of the tooth for animals and pets such as canine, feline and members of the taxonomic family Equidae prior to repair. The dental compositions include a bioactive glass and a non-aqueous solvent comprising an alcohol, anti-inflammatory and anti-pain reliever.

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13-02-2020 дата публикации

Dental composition

Номер: US20200046612A1
Принадлежит: Dentsply Sirona Inc

The present invention relates to a dental composition comprising (i) a polymerizable composition containing a compound having repeating units of the following formula (I): wherein R 1 represents a hydrogen atom or a linear C 1-6 alkyl group, or a branched or cyclic C 3-6 alkyl group; L represents a divalent organic linker group which may contain one or more monovalent or divalent organopolysiloxane groups and/or one or more monovalent or divalent perfluorohydrocarbyl groups; n is an integer of at least 1; and (ii) one or more vinyl compounds selected from vinyl ethers, vinyl esters, vinylsiloxanes, (meth) acrylamides and 1-alkenes having from 4 to 20 carbon atoms, said vinyl compounds being copolymerizable with the compound having repeating units of formula (I); and (iii) a polymerization initiator system.

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04-03-2021 дата публикации

SHADE MATCHING DENTAL COMPOSITE

Номер: US20210059798A1
Автор: Bringley Joseph F.
Принадлежит:

A dental composite or coating that comprises at least one photopolymerizable resin, at least one inorganic filler, a photoinitator, and at lease one interference platelet. The dental composite is able to adapt and match the color and shade of adjacent tooth structure in the cavity in which it is placed, without the need for conventional dyes and pigments, although it may be desirable to use dyes and pigments in a specific shade series. 1. A curable dental composition comprising a photocurable resin , at least one filler , a photoinitiator and at least one interference platelet to form a translucent composite that mimics the color of a surrounding cavity.2. The curable dental composition of claim 1 , wherein the contrast ratio of a disk of 1 mm thickness of the composite is between 40 and 85.3. The curable dental composition of claim 1 , wherein the contrast ratio of a disk of 1 mm thickness of the composite is between 55 and 75.4. The curable dental composition of claim 1 , wherein the difference between the refractive index of the filler and that of the photocurable resin after curing is not greater than 0.03.5. The curable dental composition of claim 1 , wherein the at least one interference platelet is reflective or scattering in the visible region of the spectrum.6. The curable dental composition of claim 1 , wherein the at least one interference platelet is reflective or scattering in the red and green region of the spectrum.7. The curable dental composition of claim 1 , wherein the at least one interference platelet is reflective or scattering in the red and yellow region of the spectrum.8. The curable dental composition of claim 1 , wherein the at least one interference platelet has a mean particle diameter between 5 and 100 microns.9. The curable dental composition of claim 1 , wherein the at least one interference platelet has a mean particle diameter between 5 and 50 microns.10. The curable dental composition of wherein the filler has a refractive index ...

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17-03-2022 дата публикации

BUFFERED MICROENCAPSULATED COMPOSITIONS AND METHODS

Номер: US20220079849A1
Принадлежит:

A microcapsule composition comprising at least one polymer substantially disposed as a semipermeable shell around an aqueous buffered solution and at least one agent, wherein the agent permeates the shell, and wherein the composition is suitable for delivery to a mammal. 1. A composition comprising a plurality of first microcapsules and a plurality of second microcapsules , said plurality of first microcapsules comprising a polymer substantially disposed as a semipermeable shell around a positively charged ion and said plurality of second microcapsules comprising a polymer substantially disposed as a semipermeable shell around a negatively charged ion in said plurality of second microcapsules , wherein each of the positively charged ion and negatively charged ion permeates the semipermeable shell , and wherein the composition is suitable for delivery to a mammal.2. The composition of wherein the positively charged ion is a calcium ion.3. The composition of wherein the negatively charged ion is a phosphate ion or fluoride ion.4. The composition of wherein the first microcapsules and the second microcapsules are prepared by an interfacial polymerization of a reverse emulsion.5. The composition of wherein the calcium ion is donated from calcium salts including claim 2 , but not limited to claim 2 , calcium acetate claim 2 , calcium aluminosilicate claim 2 , calcium benzoate claim 2 , calcium bromide claim 2 , calcium butyrate claim 2 , calcium aragonite claim 2 , calcium calcite claim 2 , calcium chloride claim 2 , calcium aluminate claim 2 , calcium chloride fluoride orthophosphate claim 2 , calcium thiosulfate claim 2 , calcium valerate claim 2 , calcium cinnamate claim 2 , calcium citrate claim 2 , calcium fluosilicate claim 2 , calcium fluoride claim 2 , calcium formate claim 2 , calcium fumarate claim 2 , calcium gluconate claim 2 , calcium glycerophosphate claim 2 , calcium iodate claim 2 , calcium iodide claim 2 , calcium isobutyrate claim 2 , calcium lactate ...

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11-03-2021 дата публикации

Photoinitiator modified polyacidic polymer

Номер: US20210069070A1
Принадлежит: Dentsply Sirona Inc

The present invention relates to an initiator modified polyacidic polymer having a covalently bonded initiator compound, and to a dental resin-modified glass ionomer composition comprising this polyacidic polymer. Furthermore, the present invention relates to a use of the initiator modified polyacidic polymer for the preparation of a dental composition. The covalently bonded initiator compound of the initiator modified polyacidic polymer may be any compound of a redox initiator system, a photoinitiator system, for example a Norrish type I or II photoinitiator, an electron donor component, a sensitizer component or a coinitiator component.

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24-03-2022 дата публикации

DENTAL IMPLANT, COMPONENT FOR DENTAL APPLICATIONS, IMPLANT SYSTEM FOR DENTAL APPLICATIONS, METHOD FOR FORMING A PROTECTIVE LAYER ON THE SURFACE OF AN IMPLANTABLE OR IMPLANT COMPONENT, IMPLANTABLE OR IMPLANT COMPONENT HAVING A PROTECTIVE LAYER, AND USE OF A PROTECTIVE LAYER

Номер: US20220087784A1
Принадлежит:

The present invention provides Dental implant configured to be inserted into a hole in jaw bone and to be at least partially situated in bone tissue when implanted, comprising: a coronal implant region, the surface of which is at least partly covered by an oxide layer with an average thickness in the range from 60 nm to 170 nm and has an average arithmetical mean height Sa in the range from 0.1 μm to 1.0 μm. Further provided is a component for dental applications, preferably dental abutment, wherein the surface of the component is at least partly covered by an oxide layer with an average thickness in the range from 60 nm to 170 nm and has an average arithmetical mean height Sa in the range from 0.05 μm to 0.5 μm and an implant system comprising the dental implant and the component. Method for forming a protective layer on the surface of an implantable or implant component, the method comprising a) applying a solution on the surface of component, the solution having a pH at 25° C. of 6.8 or less and b) drying the solution applied in step a) to form a protective layer on the surface of the component for dental applications. Finally, part of the present invention is an implantable or implant component having a protective layer obtainable as above and a use of such layer for storage. 112.-. (canceled)13. Component for dental applications , wherein the surface of the component isat least partly covered by an oxide layer with an average thickness in the range from 60 nm to 170 nm andhas an average arithmetical mean height Sa in the range from 0.05 μm to 0.5 μm.14. Component according to claim 13 , wherein the surface of the component is at least partially obtained by performing an anodic oxidation process.15. Component according to claim 13 , wherein the surface of the component is smooth claim 13 , nanostructured claim 13 , basically non-porous and/or exhibits an as-machined structure.16. Component according to claim 13 , wherein the surface of the component exhibits a ...

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24-03-2022 дата публикации

PHOTOPOLYMERIZATION INITIATOR, PHOTOCURABLE COMPOSITION, CURED PRODUCT, AND DENTAL MATERIAL

Номер: US20220087906A1
Автор: Takahashi Issei
Принадлежит: Mitsui Chemicals, Inc.

A photopolymerization initiator including a peroxide, a photobase generator, and a photoradical generator; a photocurable composition; a cured product; and a dental material. 1. A photopolymerization initiator , comprising:a peroxide;a photobase generator; anda photoradical generator.2. The photopolymerization initiator according to claim 1 , wherein the photoradical generator is excited by light having a wavelength of from 420 nm to 525 nm.3. The photopolymerization initiator according to claim 1 , wherein the photoradical generator is a Norrish type II initiator claim 1 , or an aniline compound and an iodonium salt compound.4. The photopolymerization initiator according to claim 1 , wherein the peroxide comprises at least one selected from the group consisting of diacyl peroxide compounds claim 1 , peroxyester compounds claim 1 , hydroperoxide compounds claim 1 , inorganic peroxides claim 1 , and alkyl peroxides.5. The photopolymerization initiator according to claim 1 , wherein the photobase generator comprises at least one selected from the group consisting of oxime ester compounds claim 1 , acyl compounds claim 1 , carbamate compounds claim 1 , aminoacetophenone compounds claim 1 , tertiary amine compounds claim 1 , quaternary ammonium salt compounds claim 1 , and amide compounds.6. The photopolymerization initiator according to claim 1 , further comprising a benzodioxole compound.7. The photopolymerization initiator according to claim 1 , which is for a dental material.8. A photocurable composition claim 1 , comprising:{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'the photopolymerization initiator according to ; and'}a polymerizable monomer.9. The photocurable composition according to claim 8 , wherein a mass content ratio of the photoradical generator to a total amount of the polymerizable monomer is from 0.0001 to 1.0.10. The photocurable composition according to claim 8 , wherein a mass content ratio of the photobase generator to a total amount of the ...

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12-06-2014 дата публикации

Nanoparticle dental composition and method of making

Номер: US20140161852A1
Принадлежит: UNIVERSITY OF ROCHESTER

Disclosed are compositions and methods for reducing dentin hypersensitivity. Also disclosed are compositions containing calcium fluoride nanoparticles.

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25-03-2021 дата публикации

ONE-PART DENTAL ADHESIVE COMPOSITION FOR FIXING DENTAL COMPOSITE MATERIALS

Номер: US20210085570A1
Принадлежит:

The invention relates to a one-part dental adhesive composition comprising polymerizable component(s) with an acidic moiety as Component A, photo-initiator(s) as Component B1, transition metal ion component(s) as Component C, solvent(s) other than water as Component D1, a stabilizer as Component E, the stabilizer comprising a free radical moiety or being selected from anaerobic stabilizers, for use in a process of fixing a composite material to the surface of hard dental tissue, the composite material comprising a redox initiator system with an oxidizing agent and a reducing agent. 2. The one-part dental adhesive composition according to claim 1 , the process of fixing a dental composite material to the surface of hard dental tissue comprising the steps of:applying the dental adhesive composition to the surface of hard dental tissue,optionally applying radiation to the dental adhesive composition,applying the dental composite material to the surface of hard dental tissue which has been treated with the dental adhesive composition.3. The one-part dental adhesive composition according to claim 1 ,the transition metal ion component(s) comprising metal ions selected from copper, iron or vanadium and mixtures thereof,and being present preferably in an amount of 0.01 to 1 wt. % with respect to the weight of the dental adhesive composition.4. The one-part dental adhesive composition according to claim 1 ,the photo-initiator(s) being selected from components comprising an alpha-alpha diketone moiety, an anthraquinone moiety, a thioxanthone moiety or benzoin moiety,and being present preferably in an amount of 0.5 to 3 wt. % with respect to the weight of the dental adhesive composition.5. The one-part dental adhesive composition according to claim 1 , the stabilizer comprising a moiety selected from 2 claim 1 ,2-diphenyl-1-picrylhydrazyl claim 1 , 4-hydroxy-2 claim 1 ,2 claim 1 ,6 claim 1 ,6-tetramethyl-piperidine 1-oxyl claim 1 , 2 claim 1 ,2 claim 1 ,6 claim 1 ,6 ...

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30-03-2017 дата публикации

Resin reinforced zinc polycarboxylate temporary cement compositions and related kits and methods

Номер: US20170087061A1
Принадлежит: Ultradent Products Inc

Dental cement compositions (including two-part compositions), kits, and related methods are used for bonding a dental prosthetic appliance to a tooth. A first part includes an amine activator component and a zinc oxide reactive filler, while a second part includes a polymerization initiator (e.g., benzoyl peroxide) and a polymerizable component having a structure including at least one acrylate or methacrylate group at one end and a carboxylic acid group at another end. A temporary cement composition advantageously exhibits reduced compressive and/or bonding strength relative to permanent cement compositions, which provides sufficient strength to facilitate normal use of the teeth while the provisional appliance is in use, while also facilitating easy removal of the provisional appliance for replacement with a permanent appliance at a later time.

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12-05-2022 дата публикации

ANTI-MICROBIAL PARTICLES AND METHODS OF USE THEREOF

Номер: US20220142155A1
Принадлежит: NOBIO LTD.

This invention relates to anti-microbial active particles, compositions and uses thereof for inhibiting bacterial growth on surfaces or devices. This invention further discloses methods of making such anti-microbial active particles. 2. The composite of claim 1 , wherein the particles are dispersed in the polymeric material.5. The composite of claim 1 , wherein the core of the particles comprises silica.6. The composite of claim 5 , wherein the silica is selected from the group consisting of amorphous silica claim 5 , dense silica claim 5 , aerogel silica claim 5 , porous silica claim 5 , mesoporous silica and fumed silica.7. The composite of claim 1 , wherein the polymeric material is selected from the group consisting of organic polymers claim 1 , inorganic polymers and combinations thereof.8. The composite of claim 7 , wherein the organic polymer is selected from the group consisting of polyolefins claim 7 , epoxy resin claim 7 , acrylate resin and combinations thereof.9. The composite of claim 7 , wherein the inorganic polymer is selected from the group consisting of silicone polymers ceramics claim 7 , metals and combinations thereof.10. The composite of claim 1 , wherein the weight ratio of the anti-microbial particles which are represented by structure (1) to the polymeric material is between 0.25-5%.11. The composite of claim 1 , wherein the particles are a mixture of different particles.12. The composite of claim 1 , wherein said composition is capable of filling of tooth decay cavities claim 1 , is a dental restorative endodontic filling material for filling root canal space in root canal treatment claim 1 , or is selected from the group consisting of a dental restorative material intended for provisional and final tooth restorations or tooth replacement claim 1 , a dental inlay claim 1 , a dental onlay claim 1 , a crown claim 1 , a partial denture claim 1 , a complete denture claim 1 , a dental implant claim 1 , a dental implant abutment claim 1 , and a ...

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12-05-2022 дата публикации

DENTAL ENAMEL COMPOSITIONS WITH ANTI-INFLAMMATORY AGENTS

Номер: US20220142873A1
Принадлежит:

Provided are methods and compositions relating to a dental composition more specifically to prepare the damaged dentin of the tooth prior to repair. The dental compositions include a bioactive glass and a non-aqueous solvent comprising an alcohol, anti-inflammatory and anti-pain reliver. 1. A kit for repairing the dentin of a tooth comprising:a dental bonding slurry wherein said dental bonding slurry comprising a bioactive glass substantially lacking silanol groups;a non-aqueous solvent comprising alcohol, natural products and an anti-inflammatory agent;an etching composition; andan electromagnetic stimulator capable of using an alternating current (AC) voltage.2Punica granatum, Menta. The kit for repairing the dentin of a tooth of wherein said anti-inflammatory agent is selected from the group consisting of acetylsalicylic acid (ASA) claim 1 , Neem claim 1 , Nimba claim 1 , spp. clove oil claim 1 , Cannabidiol (CBD) oil claim 1 , Boswellia and chlorotoxin.3Pandinus imperatorHeterometrus swammerdamiAndroctonus australis, Hadrurus hirsutus,. The kit for repairing the dentin of a tooth of wherein said chlorotoxin is venom selected from the group of scorpions consisting of emperor scorpion () claim 2 , and the scorpion claim 2 , African Albino Scorpions claim 2 , Black Scorpions or Asian Forest Scorpions claim 2 , Blue Scorpions claim 2 , Emperor Scorpions claim 2 , Deathstalker Scorpions claim 2 , Lesser Brown Scorpions claim 2 , Red Claw Scorpions claim 2 , Red Scorpions claim 2 , Sand Scorpions claim 2 , Tailless Whip Scorpions and Whip Scorpions.4. The kit for repairing the dentin of a tooth of wherein the total weight percent of said bioactive glass substantially lacking silanol groups is 49.5% SiO claim 1 , 17.0% NaO claim 1 , 26.9% CaO claim 1 , and 6.6% PO claim 1 , 49.5% SiO claim 1 , 17.0% NaO claim 1 , 26.9% CaO claim 1 , and 6.6% PO.5. The kit for repairing the dentin of a tooth of wherein the total weight percent of said bioactive glass substantially ...

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01-04-2021 дата публикации

PHOTOPOLYMERIZATION INITIATOR AND PHOTOCURABLE COMPOSITION

Номер: US20210095055A1
Принадлежит:

A photopolymerization initiator including (a) a photosensitizer, (b) a tertiary amine compound and (c) an aryliodonium salt wherein, as the aryliodonium salt (c), there is selected the one that generates an acid having a dissociation constant of not less than −3.0 in water of 25° C. 17-. (canceled)9. (canceled)10. The photocurable composition according to claim 8 , wherein said photopolymerization initiator is added in such an amount that the amount of said photosensitizer (a) in said photopolymerization initiator is 0.01 to 10 parts by mass per 100 parts by mass of said polymerizable monomer.11. The photocurable composition according to claim 8 , wherein said photocurable composition claim 8 , further claim 8 , includes a filler claim 8 , and is used as a dental composite resin.12. The photocurable composition according to claim 8 , wherein said aryliodonium salt (c) is a diphenyliodonium-2-carboxylate monohydrate.13. The photocurable composition according to claim 8 , wherein said photosensitizer (a) is an α-diketone.14. The photocurable composition according to claim 8 , wherein said tertiary amine compound (b) includes an aromatic tertiary amine (b1).15. The photocurable composition according to claim 14 , wherein said tertiary amine compound (b) includes the aromatic tertiary amine (b1) and an aliphatic tertiary amine (b2).16. The photocurable composition according to claim 8 , wherein said tertiary amine compound (b) is contained in an amount of 10 to 1000 parts by mass and said aryliodonium salt (c) is contained in an amount of 10 to 2000 parts by mass per 100 parts by mass of said photosensitizer (a).17. The photocurable composition according to claim 16 , wherein said aryliodonium salt (c) is contained in an amount of 10 to 80% by mass on the basis of the total amount of said tertiary amine compound (b) and said aryliodonium salt (c). This invention relates to a photopolymerization initiator and a photocurable composition containing the photopolymerization ...

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02-06-2022 дата публикации

Primer and kit of primer and dental material

Номер: US20220168190A1
Принадлежит: Kettenbach GmbH and Co KG

The invention relates to an aqueous dental single-component primer composition as well as a kit with this primer composition and a composite. The primer composition according to the present invention is self-etching and self-undercoating. It comprises a polymerizable (meth)acrylate or (meth)acrylamide monomer with (i) at least one acidic group such as for example a phosphoric acid group and with (ii) at least one hydrophilic group such as for example a terminal hydroxy group or two polymerizable (meth)acrylate or (meth)acrylamide monomers, wherein one thereof comprises (i) at least one acidic group and one thereof comprises (ii) at least one hydrophilic group. In addition, at least one of the polymerizable (meth)acrylate or methylacrylamide monomers comprises (i) a polyfunctionality, preferably an at least threefold polyfunctionality, particularly preferably a 3-, 4-, 5-, 6-, 7-, 8-, 9- or 10-fold polyfunctionality and/or (ii), or a further polymerizable (meth)acrylate or methylacrylamide monomer (iii) with a polyfunctionality, preferably an at least three-fold polyfunctionality, particularly preferably a 3-, 4-, 5-, 6-, 7-, 8-, 9- or 10-fold polyfunctionality is contained. This polyfunctionality inheres in the capability to polymerize. In particularly, at least three, preferably terminal, (meth)acrylate, (meth)acrylamide and/or allyl groups are present. Furthermore, this primer composition is characterized by the absence of a photoinitiator, a polymerization catalyst, in particularly a polymerization catalyst on the basis of vanadium as well as by the absence of an organic solvent.

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28-04-2016 дата публикации

Resin reinforced zinc polycarboxylate temporary cement compositions and related kits and methods

Номер: US20160113847A1
Принадлежит: Ultradent Products Inc

Dental cement compositions (including two-part compositions), kits, and related methods are used for bonding a dental prosthetic appliance to a tooth. A first part includes an amine activator component and a zinc oxide reactive filler, while a second part includes a polymerization initiator (e.g., benzoyl peroxide) and a polymerizable component having a structure including at least one acrylate or methacrylate group at one end and a carboxylic acid group at another end. A temporary cement composition advantageously exhibits reduced compressive and/or bonding strength relative to permanent cement compositions, which provides sufficient strength to facilitate normal use of the teeth while the provisional appliance is in use, while also facilitating easy removal of the provisional appliance for replacement with a permanent appliance at a later time.

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09-06-2022 дата публикации

SOLVENT-FREE DENTAL ADHESIVE COMPOSITION

Номер: US20220175621A1
Автор: MATSUURA Ryo
Принадлежит: KURARAY NORITAKE DENTAL INC.

The present invention provides a solvent-free dental adhesive composition exhibiting high initial bond strength and high bond durability to a tooth structure and being substantially free of water and an organic solvent. The present invention relates to a solvent-free dental adhesive composition comprising: an acid group-containing polymerizable monomer (A); a hydrophobic polymerizable monomer (B) having no acid group; and a photopolymerization initiator (C), wherein the photopolymerization initiator (C) comprises at least one selected from the group consisting of a compound (C-1) having a particular structure and a compound (C-2) having a particular structure. 3. The solvent-free dental adhesive composition according to claim 1 , wherein the photopolymerization initiator (C) comprises the compound (C-1) of formula (1).4. The solvent-free dental adhesive composition according to claim 1 , wherein{'sup': 8', '15', '8', '15, 'one of the groups as Rto Ris —COOY and the other groups as Rto Rare each a hydrogen atom or a methyl group.'}5. The solvent-free dental adhesive composition according to claim 2 , wherein{'sup': 19', '20', '21', '25', '21', '25, 'Rand Rare each a methyl group or an ethyl group, one of the groups as Rto Ris —COOH or —COOY, and another one of the groups as Rto Ris —OH or a linear alkoxy group having 1 to 3 carbon atoms.'}6. The solvent-free dental adhesive composition according to claim 1 , wherein X is a methylene group.7. The solvent-free dental adhesive composition according to claim 1 , further comprising a hydrophilic polymerizable monomer (D) having no acid group.8. The solvent-free dental adhesive composition according to claim 7 , wherein a content of the hydrophilic polymerizable monomer (D) with respect to a total mass of the hydrophobic polymerizable monomer (B) and the hydrophilic polymerizable monomer (D) is 50 mass % or less.9. The solvent-free dental adhesive composition according to claim 1 , wherein the acid group-containing ...

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26-04-2018 дата публикации

Dental polymerizable monomers, compositions, adhesive dental materials and kits

Номер: US20180110683A1
Принадлежит: Mitsui Chemicals Inc, Sun Medical Co Ltd

The present invention provides polymerizable monomers represented by the following general formula (1) that are useful as dental materials. In the general formula (1), R a is a divalent C 6-9 aromatic hydrocarbon group or a divalent C 6-9 optionally bridged cyclic hydrocarbon group, R 1 and R 2 are each a hydrogen atom or a C 1-3 alkyl group, R 3 , R 4 , R 5 and R 6 are each a hydrogen atom or a hydrocarbon group, R 7 and R 8 are each a hydrogen atom or a methyl group, m and n are each independently 0 to 4, and R b and R c are each independently a C 2-6 linear alkylene or C 2-6 linear oxyalkylene group optionally substituted with a C 1-3 alkyl group or a (meth)acryloyloxymethylene group in place of a hydrogen atom.

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09-04-2020 дата публикации

Powder mixture, use of the powder mixture, and a powder jet device

Номер: US20200107997A1
Автор: Marcel Donnet
Принадлежит: Ferton Holding SA

The present invention relates to a powder mixture, in particular for the remineralization of teeth, a powder jet device, in particular for application in the field of dentistry, a use of the powder mixture for producing a means for the remineralization of teeth 5 and to a method for the remineralization of teeth, and a use of a powder mixture in a dental apparatus. The powder mixture comprises a deposition powder which is designed to adhere to tooth surfaces.

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25-04-2019 дата публикации

Dental composition

Номер: US20190117522A1
Принадлежит: Dentsply Sirona Inc

Dental composition comprising (a) a homogeneous phase comprising monomer combinations (i) and (ii), (i) and (iii), (ii) and (iii), or (i), (ii) and (iii), or comprising monomer (iii), wherein (i) represents one or more compounds having one or more radically polymerizable carbon-carbon double bonds; (ii) represents one or more compounds having one or more cationically polymerizable groups; and (iii) represents one or more compounds having a combination of one or more radically polymerizable carbon-carbon double bonds and one or more cationically polymerizable groups; (b) an initiator system comprising (iv) one or more radical polymerization initiator of the following formula (I): wherein M is Ge or Si; R 1 , R 2 and R 3 may be the same or different, independently represent an organic group, and R 4 represents a hydrogen atom, an organic or organometallic group; provided that when R 4 is a hydrogen atom, the initiator system further comprises a sensitizer compound having a light absorption maximum in the range from 300 to 600 nm; (v) a cationic polymerization initiator, which is a compound selected from the following formula (II), (III) and (IV): wherein R 5 and R 6 , which may be the same or different, independently represent an aryl group which may have a substituent; and Y − represents an anion; wherein R 7 , R 8 and R 9 which may be the same or different, independently represent an aryl group which may have a substituent; and Y − represents an anion; R 10 , R 11 , R 12 , and R 13 which may be the same or different, independently represent an alkyl or aryl group which may have a substituent; and Y − represents an anion.

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27-05-2021 дата публикации

SUBSTANCES AND METHODS FOR BEDSIDE MANAGEMENT OF POST-OPERATIVE PAIN

Номер: US20210154104A1
Принадлежит:

A solution for treating post-operative local pain, removing debris and bacteria from tooth surfaces for use in general dentistry and in endodontics. The solution compromising analgesic, disinfectant, surfactant, organic acid, and sustained release polymer. A method of making a solution for treating post-operative pain, removing debris and bacteria from tooth surfaces for use in general dentistry and in endodontics. A solution and method for use in general dentistry and in endodontics to treat post-operative local pain in oral mucosa. 1. A method of bedside management of post-operative pain in general dentistry and in endodontics:a)Mixing an analgesic with any compositions and methods for irrigating a prepared dental root canal.b)Making use of slow-sustained release polymer for longer analgesic and antibacterial effects of any compositions and methods for irrigating a prepared dental root canal.2. A substance for bedside management of post-operative pain in general dentistry and in endodontics:a)Adding benzydamine Hcl as an analgesic and chitosan as a sustained release polymer to mixture of tetracycline, acid and detergent.1. The method of claim 1 , wherein the method does not involve using slow-sustained release polymer.2. The method of claim 1 , wherein the method relieving pain longer period of time.3. The method of claim 1 , wherein the method relieving more severe pain.4. The method of claim 1 , wherein the analgesic is not benzydamine Hcl{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'The method of , wherein the slow-sustained release polymer is not chitosan.'} This application is a continuation of U.S patent application Ser. No. 10/348,298, filed on Jan. 21, 2003, the entire contents of which are hereby incorporated by reference and made a part of this specification.Mixture of tetracycline, acid and detergent (MTAD) (sold under the trade name Biopure MTAD (Dentsply Tulsa Dental, Tulsa, Okla., USA) is a substance currently used in general dentistry and in ...

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01-09-2022 дата публикации

Material for demineralizing dentin collagen fibril, preparation method and application thereof

Номер: US20220273546A1
Принадлежит: Fourth Military Medical University FMMU

The invention relates to a dentin collagen fibril demineralizing material, and a preparation method and application thereof. The invention relates to a conjugate of water-soluble chitosan and an aminocarboxylic acid metal chelating agent used for dental demineralization, preferably dentin demineralization. The invention also discloses a dentin collagen fibril demineralizing material and a preparation method and application thereof, wherein the material is prepared from 0.5-1 part by mass of water-soluble chitosan, 10-30 parts by mass of EDTA, and 0.8-1.5 parts by mass of cross-linking agent. The invention relates to a dental demineralization composition comprising a conjugate and a material of the invention. The conjugate, material and composition can be used for dentin demineralization treatment before dental bonding and restoration. When used as a dentin collagen demineralizing agent, they have excellent selective extrafibrillar demineralization performance, good biological compatibility, effective anti-bacterial activity, endogenous matrix protease-inhibiting activity and extremely low cytotoxicity.

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03-06-2021 дата публикации

RADICAL POLYMERISATION INITIATORS FOR LIGHT-CURABLE DENTAL MATERIALS

Номер: US20210161772A1
Принадлежит: DENTSPLY SIRONA Inc.

The invention provides alight-curable dental material comprising a polymerizable compound having at least one ethylenically unsaturated bond and a hexaaryl bisimidazole as a photopolymerisation initiator. 1. A light-curable dental material comprising(i) a polymerizable compound having at least one ethylenically unsaturated bond and(ii) a hexaaryl bisimidazole.2. The light-curable dental material according to claim 1 , further comprising an α claim 1 ,β-diketone as a polymerization initiator and optionally a polymerisation inhibitor.3. The light-curable dental material according to any one of or claim 1 , further comprising a solid particulate filler.4. The light-curable dental material according to any of to claim 1 , wherein said hexaaryl bisimidazole has the following structure (I):{'br': None, 'sub': 3', '3, 'ArT-TAr\u2003\u2003(I)'}wherein each T is an imidazole moiety and each Ar stands for an optionally substituted aryl group that may be the same or different and wherein the substitution on different groups Ar may be the same or different.7. The light-curable dental material according to any one of to claim 1 , wherein the aryl group is selected from phenyl and naphthyl.8. The light-curable dental material according to any one of to claim 1 , wherein each aryl group may have 1 to 5 substituents selected from the group consisting of C-alkyl claim 1 , C-alkoxy claim 1 , hydroxy claim 1 , halo claim 1 , cyano claim 1 , nitro claim 1 , nitroso claim 1 , mercapto claim 1 , carboxyl claim 1 , sulfonate claim 1 , thiol claim 1 , amino claim 1 , phenyl claim 1 , pyridyl claim 1 , and trifluoromethyl.9. The light-curable dental material according to any one of to claim 1 , wherein the concentration of said hexaaryl bisimidazole based on the total weight of all polymerizable compounds having at least one ethylenically unsaturated bond is from 0.01 to 2.0 claim 1 , preferably from 0.05 to 1.5 claim 1 , and most preferably from 0.1 to 1.0 weight-%.10. The light-curable ...

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19-05-2016 дата публикации

Method of making calcium-fluoride layer formed on an object surface for more wear resistance

Номер: US20160135937A1
Принадлежит: NATIONAL CHUNG CHENG UNIVERSITY

A method of making a calcium-fluoride layer formed on an object surface for more wear resistance includes the steps of coating sodium fluoride to a surface of an object having calcium, whereby the calcium fluoride and the calcium are inverted to become a calcium-fluoride layer on the surface of the object after a chemistry reaction; preparing a CO 2 laser device having a CO 2 laser emitter for emitting CO 2 laser; and applying irradiation of the CO 2 laser via the CO 2 laser emitter to the calcium-fluoride layer for at least five seconds. In light of this, the wear resistance of the calcium-fluoride layer is enhanced for at least 34%, the absorption rate of the fluoride is increased for at least 23%, and the surface of the object has aesthetic and integral appearance.

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07-08-2014 дата публикации

Dental compositions comprising mixture of isocyanurate monomer and tricyclodecane monomer

Номер: US20140220512A1
Принадлежит: 3M Innovative Properties Co

Hardenable compositions are described comprising at least one multifunctional ethylenically unsaturated isocyanurate monomer and at least one multifunctional ethylenically unsaturated tricyclodecane monomer. In favored embodiments, the compositions further comprise filler and are suitable dental restorations.

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30-04-2020 дата публикации

OXIDATIVE COMPOSITIONS AND METHODS FOR STIMULATING THE GROWTH OF OSTEOBLASTS AND USE IN DENTAL COATINGS AND JAW BONE AUGMENTATION

Номер: US20200129383A1
Автор: Neas Edwin, Noblitt Scott
Принадлежит: Armis Biopharma, Inc.

Clinical application of oxidative compositions, alone or in combination with polymer or salt stabilizers, for use in bone proliferation applications, such as spinal surgery, arthroplasty, or osteosarcoma. Additional applications include use in dental artificial tooth implants, orthopedic implantable prostheses for small and large bones, implantation into other surgical sites (e.g., dental implants, bone graft additive, face reconstruction, etc.) where bone growth is desired. 1. A method for stimulating the growth of osteoblast cells comprising:applying to the cells a composition comprising a mixture of a peracid and a bis(hydroperoxide), in an amount sufficient to stimulate osteoblast growth.2. A method according to claim 1 , wherein the composition further comprises a hydro-peroxide claim 1 , an epoxide claim 1 , or both.3. A method according to claim 1 , wherein the composition further comprises an oxidizing agent.4. A method according to claim 1 , wherein the peracid and bis(hydroperoxide) are used in synergistic quantities to stimulate bone growth.5. A method according to claim 1 , wherein said composition is formulated as a gel claim 1 , liquid claim 1 , beads claim 1 , film claim 1 , coating claim 1 , or a combination thereof.6. A method for stimulating bone growth in a patient in need thereof claim 1 , comprising administering to said patient a composition comprising a peracid mixture claim 1 , in an amount effective to initiate a significant increase in bone mass.7. The method of any one of - claim 1 , wherein the mixture further comprises a magnesium salt.8. The method of claim 7 , wherein the magnesium salt is magnesium acetate tetrahydrate.9. A method according to claim 6 , wherein the composition is delivered locally to a bone wound or defect.10. A method for stimulating the growth of osteoblast cells comprising culturing said cells in the presence of a composition comprising a peracid and a bis(hydroperoxide) in an amount sufficient to stimulate ...

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10-06-2021 дата публикации

SEPARATELY PACKED CURABLE COMPOSITION

Номер: US20210169749A1
Принадлежит: Mitsui Chemicals, Inc.

Provided is a curable composition that has a sufficient pot life and does not cause a significant delay in curing time even after long-term storage at room temperature or higher. A separately packed curable composition includes: (A) a first pack containing: (a1) a polymerizable monomer having no acidic group, (b) a polymerizable monomer having an acidic group, and (c) a transition metal compound; and (B) a second pack containing: (a2) a polymerizable monomer having no acidic group, (d) an aromatic amine compound, and (e) at least one compound selected from sulfinic acid and a salt thereof. 1. A separately packed curable composition , comprising: (a1) a polymerizable monomer having no acidic group,', '(b) a polymerizable monomer having an acidic group, and', '(c) a transition metal compound; and, '(A) a first pack containing (a2) a polymerizable monomer having no acidic group,', '(d) an aromatic amine compound, and', '(e) at least one compound selected from sulfinic acid and a salt thereof., '(B) a second pack containing2. The separately packed curable composition according to claim 1 , wherein the metal constituting the transition metal compound (c) is an early transition metal.3. The separately packed curable composition according to claim 1 , wherein the transition metal compound (c) is a vanadium compound.4. The separately packed curable composition according to claim 1 , wherein the second pack (B) contains a peroxyester compound (fa) and/or an alkyl peroxide (fb).5. The separately packed curable composition according to claim 1 , wherein the second pack (B) contains a photopolymerization initiator (g).6. The separately packed curable composition according to claim 1 , wherein at least one of the first pack (A) and the second pack (B) contains a filler (h).7. The separately packed curable composition according to claim 1 , wherein a total of the transition metal compound (c) claim 1 , the aromatic amine (d) claim 1 , and the at least one compound (e) selected ...

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15-09-2022 дата публикации

DENTAL ADHESIVE COMPOSITION EXCELLENT IN STORAGE STABILITY

Номер: US20220287918A1
Принадлежит: SHOFU INC.

[Problem] 2. The dental adhesive composition according to claim 1 , wherein{'sub': '1', 'the electron-withdrawing group in Ris a substituent selected from a functional group selected from the group consisting of a hydroxyl group, a carboxyl group, a vinyl group, an aryl group and a halogen, and, an organic group which is bonded via an ether bond, an ester bond, a urethane bond or a urea bond and may have —OH group, —O-group, —C(O)-group, —S-group, —NH—C(O)—NH-group, —C(O)—O-group, —O—C(O)-group, —OC(O)—NH-group, —NH—C(O)—O-group, an aromatic hydrocarbon group, or a polymerizable functional group capable of radical polymerization.'}3. The dental adhesive composition according to claim 1 , wherein{'sub': 1', '2, 'the (D-1) aliphatic tertiary amine compound represented by formula (1) is an aliphatic tertiary amine compound in which Rand Rhave an aliphatic substituent consisting of three or more carbons having an electron-withdrawing group at α-carbon and/or β-carbon.'}4. The dental adhesive composition according to claim 1 , wherein{'sub': 1', '2, 'the (D-1) aliphatic tertiary amine compound represented by formula (1) is an aliphatic tertiary amine compound in which Rand Rhave an aryl group which may have a substituent, at α-carbon and/or β-carbon.'}5. The dental adhesive composition according to claim 1 , whereinthe dental adhesive composition further comprises (G) water.6. The dental adhesive composition according to claim 1 , whereinthe dental adhesive composition further comprises (B) photosensitizer.7. The dental adhesive composition according to claim 1 , whereinthe dental adhesive composition further comprises (C) photoacid generator.8. The dental adhesive composition according to claim 1 , whereinthe dental adhesive composition comprises an aryl iodonium salt as the (C) photoacid generator, andthe aryl iodonium salt is a salt of an anion having an organic group and one or more atoms of P, B, Al, S and Ga, and an aryl iodonium cation.9. The dental adhesive ...

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15-09-2022 дата публикации

PHOTOCURABLE COMPOSITION EXCELLENT IN CURING DEPTH

Номер: US20220287919A1
Принадлежит: SHOFU INC.

[Problem] 2. The photocurable composition according to claim 1 , whereinthe (D-1) amine compound represented by formula (1) is an aliphatic tertiary amine.3. The photocurable composition according to claim 1 , wherein{'sub': '2', 'Rin the formula (1) of the (D-1) amine compound represented by formula (1) is a substituent represented by the formula (2).'}4. The photocurable composition according to claim 1 , whereinthe (D-1) amine compound represented by formula (1) is an aliphatic tertiary amine, and{'sub': '2', 'Rin the formula (1) of the (D-1) amine compound represented by formula (1) is a substituent represented by the formula (2).'}5. The photocurable composition according to claim 1 , whereinthe photocurable composition comprises an aryl iodonium salt as the (C) photoacid generator, andthe aryl iodonium salt is a salt of an anion having an organic group and one or more atoms of P, B, Al, S and Ga, and an aryl iodonium cation.6. The photocurable composition according to claim 1 , whereinthe photocurable composition comprises an aryl iodonium salt as the (C) photoacid generator, andthe aryl iodonium salt is a salt of an anion having an organic group in which at least one H is substituted with F and one or more atoms of P, B, Al, S and Ga, and an aryl iodonium cation.7. The photocurable composition according to claim 1 , whereinthe (B) photosensitizer contains (B-1) α-diketone compound, andthe photocurable composition is used for dentistry.8. The photocurable composition according to claim 1 , whereinthe photocurable composition is used in dental application, and is one pack type or two packs type.9. The photocurable composition according to claim 1 , wherein 0.001 to 1 parts by mass of the (B) photosensitizer,', '0.01 to 10 parts by mass of the (C) photoacid generator, and', '0.01 to 20.0 parts by mass of the (D-1) amine compound represented by formula (1)., 'the photocurable composition is one pack type photocurable composition comprising, with respect to 100 ...

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15-09-2022 дата публикации

DENTAL PHOTOCURABLE COMPOSITION CONTAINING HIGH SOLUBLE PHOTOACID GENERATOR

Номер: US20220287920A1
Принадлежит: SHOFU INC.

To provide a dental photocurable composition which can exhibit excellent mechanical characteristics even after returning from a low temperature to room temperature. 1. A dental photocurable composition , comprising (A) polymerizable monomer , (B) photosensitizer , (C) photoacid generator , and (D) photopolymerization accelerator , wherein ,the (C) photoacid generator contains (C-1) iodonium salt-based compound of an anion having log S of −4 or less.2. The dental photocurable composition according to claim 1 , whereinthe dental photocurable composition comprises 0.5 parts by mass or more of the (C-1) iodonium salt-based compound of an anion having log S of −4 or less, with respect to 100 parts by mass of the (A) polymerizable monomer.3. The dental photocurable composition according to claim 1 , whereinthe dental photocurable composition comprises an aryl iodonium salt consisting of an anion having an organic group and one or more atoms of P, B, Al, S and Ga, and an aryl iodonium cation as the (C-1) iodonium salt-based compound of an anion having log S of −4 or less.4. The dental photocurable composition according to claim 1 , whereinthe dental photocurable composition comprises an aryl iodonium salt consisting of an anion having an organic group in which at least one H is substituted with F and one or more atoms of P, B, Al, S and Ga, and an aryl iodonium cation as the (C-1) iodonium salt-based compound of an anion having log S of −4 or less.5. The dental photocurable composition according to claim 1 , whereinthe dental photocurable composition comprises aliphatic tertiary amine compound as (D) photopolymerization accelerator.6. The dental photocurable composition according to claim 1 , whereinthe dental photocurable composition comprises (D-1) aliphatic tertiary amine compound not having two or more primary hydroxy groups as (D) photopolymerization accelerator.7. The dental photocurable composition according to claim 1 , wherein 0.005 to 1.0 parts by mass of the (B) ...

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15-09-2022 дата публикации

DENTAL PHOTOCURABLE COMPOSITION EXCELLENT IN COLOR TONE SELECTIVITY

Номер: US20220287921A1
Принадлежит: SHOFU INC.

[Problem] 1. A dental photocurable composition , comprising (A) polymerizable monomer , (B) photosensitizer , (C) photoacid generator , (D) photopolymerization accelerator and (E) filler , wherein ,the dental photocurable composition comprises (B-1) α-diketone compound as the (B) photosensitizer, and 0.15 parts by mass or less of the (B-1) α-diketone compound,', '0.5 parts by mass or more of the (C) photoacid generator, and', '100 parts by mass or more of the (E) filler., 'the dental photocurable composition comprises, with respect to 100 parts by mass of the (A) polymerizable monomer,'}2. The dental photocurable composition according to claim 1 , whereinthe (B-1) α-diketone compound is a camphorquinone compound.3. The dental photocurable composition according to claim 1 , whereinthe dental photocurable composition comprises an aryl iodonium salt as the (C) photoacid generator, whereinthe aryl iodonium salt is a salt of an anion having an organic group and one or more atoms of P, B, Al, S and Ga, and an aryl iodonium cation.4. The dental photocurable composition according to claim 1 , whereinthe dental photocurable composition comprises an aryl iodonium salt as the (C) photoacid generator, whereinthe aryl iodonium salt is a salt of an anion having an organic group in which at least one H is substituted with F and one or more atoms of P, B, Al, S and Ga, and an aryl iodonium cation.5. The dental photocurable composition according to claim 1 , whereinthe dental photocurable composition comprises (D-1) aliphatic tertiary amine compound not having two or more primary hydroxy groups as (D) photopolymerization accelerator.6. The dental photocurable composition according to claim 1 , wherein 1 parts by mass or more of the (C) photoacid generator, and', '0.5 parts by mass or more of the (D) photopolymerization accelerator., 'the dental photocurable composition comprises, with respect to 100 parts by mass of the (A) polymerizable monomer,'}7. The dental photocurable ...

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22-09-2022 дата публикации

DENTAL POLYMERIZABLE COMPOSITION

Номер: US20220296476A1
Принадлежит:

A dental polymerizable composition includes a first agent containing a (meth)acrylate, a thiourea derivative, a vanadium compound, and a β-diketone, and a second agent containing a (meth)acrylate and an organic peroxide. 1. A dental polymerizable composition comprising:a first agent containing a (meth)acrylate, a thiourea derivative, a vanadium compound, and a β-diketone; anda second agent containing a (meth)acrylate and an organic peroxide.2. The dental polymerizable composition according to claim 1 , wherein a content of the β-diketone in the first agent is 0.01% by mass or more and 10% by mass or less.3. The dental polymerizable composition according to claim 1 , wherein a mass ratio of the β-diketone to the vanadium compound is 0.1 or higher and 500 or lower.4. The dental polymerizable composition according to claim 1 , wherein the β-diketone is acetylacetone. The present invention relates to a dental polymerizable composition.Dental cements are used in dental treatment when prostheses are worn.In addition, dental polymerizable compositions other than dental cements, such as hypersensitivity protectors and sealants for children are used.As an example of a dental polymerizable composition, a two-component dental polymerizable composition having a first agent containing an (meth)acrylate, a thiourea derivative, and a vanadium compound, and a second agent containing an (meth)acrylate and an organic peroxide is known (see, for example, Patent Document 1).However, improving the curability after long-term storage of the two-component dental polymerizable composition has been desired. That is, improving the storage stability of the two-component dental polymerizable composition has been demanded.One aspect of the invention is to provide a two-component dental polymerizable composition with excellent storage stability.One aspect of the invention is a dental polymerizable composition including a first agent containing a (meth)acrylate, a thiourea derivative, a vanadium ...

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22-09-2022 дата публикации

ANTIBACTERIAL POLYMER PARTICLES, COMPOSITION, AND ARTICLE

Номер: US20220298280A1
Принадлежит:

One aspect of the present invention includes, in antibacterial polymer particles, a crosslinked copolymer having a structural unit derived from a monofunctional monomer having an antibacterial group, and a structural unit derived from a polyfunctional monomer. A water absorption capacity of the antibacterial polymer particles is 3 g/g or more. 1. Antibacterial polymer particles comprising: 'a water absorption capacity of the antibacterial polymer particles is 3 g/g or more.', 'a crosslinked copolymer that includes a structural unit derived from a monofunctional monomer having an antibacterial group, and a structural unit derived from a polyfunctional monomer, wherein'}2. The antibacterial polymer particles according to claim 1 , wherein a median diameter of the antibacterial polymer particles is 0.2 to 110 μm.4. A composition comprising the antibacterial polymer particles of .5. The composition according to claim 4 , wherein the composition is a dental composite resin.6. An article comprising the antibacterial polymer particles of . The present invention relates to antibacterial polymer particles, composition including the antibacterial polymer particles, and an article including the antibacterial polymer particles.In the field of dentistry, antibacterial agents are added in order to impart antibacterial activity to a dental composition such as a dental composite resin.Patent Literature 1 discloses an antibacterial inorganic filler in which the surface of the filler is coated with a polymer obtained by polymerizing polymerizable monomers including at least one antibacterial polymerizable monomer selected from compounds represented by a specific structural formula.Japanese Laid-Open Patent Publication No. H10-25218However, there is a problem that an antibacterial activity and a durability of the antibacterial activity are not sufficient.One aspect of the present invention is to provide antibacterial polymer particles having high antibacterial activity and high ...

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29-09-2022 дата публикации

PHOTOPOLYMERIZABLE RESIN COMPOSITIONS FOR DURABLE DENTAL PROSTHETIC AND RESTORATIVE ARTICLES

Номер: US20220304901A1
Автор: SUN BENJAMIN J.
Принадлежит: DENTSPLY SIRONA Inc.

The present invention relates to photopolymerizable resin compositions suitable for producing durable dental prosthetic and restorative articles. In particular, the invention relates to photopolymerizable resin compositions comprised of a specific combination of multiple polymerizable components, one or more resin-modifying particle components, and one or more photopolymerization initiator components. Compositions of the invention are especially well-suited to producing durable, stain-and wear-resistant dental prosthetic and restorative articles, such as artificial teeth, crowns, bridges, inlays, onlays, and veneers, in an efficient and reliable manner using additive manufacturing systems and methods (e.g., three-dimensional (D) printing). 2. The composition of claim 1 , wherein the one or more third polymerizable acrylic compounds is the reaction product of a diisocyanate end-capped pre-oligomer intermediate compound with one or more hydroxyalkyl(meth)acrylate compounds.3. The composition of claim 2 , wherein the diisocyanate end-capped pre-oligomer intermediate compound is the reaction product of trimethyl-1 claim 2 ,6-diisocyanatohexane with bisphenol A propoxylate.4. The composition of claim 1 , wherein the weight ratio of first polymerizable acrylic compound(s) (AC) to third polymerizable acrylic compound(s) (AC) claim 1 , AC:AC claim 1 , is within the range of about 5:1 to about 20:1.5. The composition of claim 1 , wherein the composition comprises no more than about 75% by weight of the one or more first polymerizable acrylic compounds.6. The composition of claim 1 , wherein the composition comprises no more than about 45% by weight of the one or more second polymerizable acrylic compounds.7. The composition of claim 1 , wherein the composition comprises no more than about 20% by weight of the one or more third polymerizable acrylic compounds.8. The composition of claim 1 , wherein the composition comprises no more than about 18% by weight of the one or more ...

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21-05-2020 дата публикации

Imidazolium/thiol polymerization initiation system

Номер: US20200157313A1
Автор: Xiaoming Jin
Принадлежит: Dentsply Sirona Inc

Described herein is a new initiator system for initiating radical polymerization of ethylenically unsaturated monomers. The initiator system comprises an organic compound having N-charged moiety in combination with an organic thiol compounds. The initiator system demonstrates better stability and is suitable for use in the field of a dentistry in formulated dual cure compositions, such as a resin modified glass ionomers, a cement, an orthodontic adhesive, and composite formulations.

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23-06-2016 дата публикации

Dental material including propylbarbituric acid polymerization catalyst

Номер: US20160175203A1
Принадлежит: Shofu Inc

The present invention relates to a polymerization catalyst having storage stability under an oral cavity environment. Furthermore, the present invention relates to a dental material cured by use of the present polymerization catalyst. The polymerization catalyst for use in the dental material is achieved with including 1-cyclohexyl-5-propylbarbituric acid and trioctylmethylammonium chloride.

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04-06-2020 дата публикации

BALANCE FUNCTIONING DENTURE TOOTH SYSTEMS CONTAINING TOUGHENED COMPOSITIONS

Номер: US20200170892A1
Принадлежит: DENTSPLY SIRONA Inc.

A dental composition that includes one or more monomers, a plurality of crosslinking agents, and an initiator. 1. A denture tooth system having anterior and posterior teeth , wherein enamels of anterior teeth and enamels of posterior teeth have different material , wherein the material is obtained by forming or molding and causing to polymerize a dental composition , the dental composition comprising:(i) about 40 to about 95 wt. % one or more monomers selected from the group of methyl methacrylate; methyl acrylate; ethyl methacrylate; isobutyl methacrylate; cyclohexylmethacrylate; isobornyl methacrylate; isobornyl acrylate; allyl methacrylate; and mixtures thereof;(ii) about 0 to about 15 wt. % a first crosslinking agent selected from the group of ethylene glycol dimethacrylate, glycerol di(meth)acrylate, glycerol tri(meth)acrylate, ethyleneglycol di(meth)acrylate, diethyleneglycol di(meth)acrylate, triethyleneglycol dimethacrylate, tetraethylene glycol di(meth)acrylate, 1,3-propanediol di(meth)acrylate, 1,3-propanediol dimethacrylate, trimethylolpropane tri(meth)acrylate, 1,2,4-butanetriol trimethacrylate, 1,4-cyclohexanediol diacrylate, 1,4-cyclohexanediol dimethacrylate, 1,6-hexanediol di(meth)acrylate, pentaerythritol tri(meth)acrylate, pentaerythritol tetra(meth)acrylate, pentaerythritol tetramethacrylate, sorbitol hexacrylate and mixtures thereof;(iii) about 5 to about 20 wt. % a second crosslinking agent selected from the group consisting of 2,2-bis(4-methacryloxyphenyl)propane, 2,2-bis[4-(2-hydroxy-3-acryloyloxypropoxy)phenyl]propane, 2,2-bis[4-(2-hydroxy-3-methacryloyloxypropoxy)phenyl]propane, 2,2-bis[4-(acryloyloxy-ethoxy)phenyl]propane; 2,2-bis[4-(methacryloyloxy-ethoxy)phenyl]propane, and mixture thereof;(iv) about 5 to about 40 wt. % of a third crosslinking agent selected from the group consisting of a reaction product of 1,3-bis(isocyanatomethyl)cyclohexane, 2-hydroxyethyl methacrylate, 2-hydroxy-3-phenoxypropyl acrylate, 2-hydroxyethyl acrylate and ...

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11-06-2020 дата публикации

METHOD AND PRODUCT FOR CARIES TREATMENT

Номер: US20200179236A1
Принадлежит:

The present invention provides new dental care products comprising self-assembling peptides (SAP) that are capable of undergoing self-assembly at a certain pH for use in dental care, e.g. preventing and/or treating a tooth lesion such as a caries lesion, remineralising a tooth surface, increasing smoothness or shine or increasing hardness of a tooth surface. The dental care products may be administered following a simple protocol involving multiple steps, e.g., comprising tooth brushing with a sonic tooth-brush such as an ultrasonic toothbrush and/or use of an oral irrigator, thereby enabling non-targeted treatment of a plurality of teeth in a subject, independent of the diagnosis of active caries, i,e., not previously successfully treated caries. The invention also relates to said method as well as kits and devices suitable therefor. 1. A method of treating or preventing a tooth lesion and/or remineralising a tooth surface in a subject , wherein the method comprises(i) removing dental biofilm from a plurality of teeth by a method selected from the group comprising tooth brushing, flossing of teeth, use of an oral irrigator, and rinsing with a salt and detergent solution;(ii) removing dental pellicle from the plurality of teeth by a method selected from the group comprising tooth brushing, flossing of teeth, use of an oral irrigator, and rinsing with a salt and detergent solution;(iii) optionally, removing inorganic deposit from the plurality of teeth by a method selected from the group comprising tooth brushing, rinsing with an acidic solution or rinsing with a salt and detergent solution, and;(iv) optionally, rinsing of teeth with a solution having a pH of 7 or more before step (v); and(v) applying a dental care product to the plurality of teeth;wherein the dental care product comprises self-assembling peptides and wherein the self-assembling peptides maintain monomeric form after application in step (v) for at least 1 minute, wherein the self-assembling peptides ...

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18-06-2020 дата публикации

ENDODONTIC FORMULATIONS CONTAINING CYSTEAMINE AND CYSTEAMINE DERIVATIVES AND USES THEREOF

Номер: US20200188237A1
Автор: Feldman Hope L.
Принадлежит:

Endodontic formulations and methods of use are provided. The formulations can be irrigant formulations for irrigating a root canal using an effective amount of Cysteamine or a Cysteamine derivative. The effective amount can be effective to inhibit the proliferation of at least one bacterial infection in the root canal patient. The effective amount can be effective to produce a percent reduction in in the canal wall of the patient of about 60% or more when administered to the patient. The effective amount can be effective to produce a percent reduction in in the canal wall of the patient of about 65% or more when administered to the patient. The formulations can be decalcifying formulations for reducing a calcification of a tissue in a root canal of a patient in need thereof. The decalcifying ability can be greater than a corresponding formulation such as EDTA and/or NaOCl. 1. An endodontic formulation suitable for administration to a patient in need thereof , the endodontic formulation comprising an effective amount of Cysteamine or a derivative thereof.2. The endodontic formulation according to claim 1 , wherein the formulation is an irrigant formulation for reducing a bacterial proliferation in a root canal wall of the patient:wherein the reduction of the bacterial proliferation is compared to a bacterial proliferation of the otherwise same root canal wall when treated in the otherwise same manner except without administering the Cysteamine or derivative thereof; orwherein the reduction of the bacterial proliferation is compared to a bacterial proliferation of the otherwise same root canal wall when treated with the otherwise same irrigant formulation except with the Cysteamine or Cysteamine derivative replaced with NaOCl in an amount ranging from about 6.15% to about 8.25% (v/v) based upon the volume of the formulation.3. The endodontic formulation according to claim 1 , wherein the formulation is a decalcifying formulation for reducing a calcification of a ...

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29-07-2021 дата публикации

Antifungal composites and methods thereof

Номер: US20210227831A1
Принадлежит: Sintx Technologies Inc

Disclosed herein are antifungal composites, devices, and methods to reduce or prevent a fungus from growing on the antifungal composite. The antifungal composite and devices thereof may include a biocompatible polymer and a Si3N4 powder loaded in at least a portion of the biocompatible polymer. The polymer may be a thermoplastic polymer such as a poly(methyl methacrylate) (PMMA) resin and the Si3N4 powder may be present in a concentration of about 1 vol. % to about 30 vol. % in the thermoplastic polymer.

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06-08-2015 дата публикации

Blank and process for producing a dental restoration by subtractive machining

Номер: US20150216635A1
Автор: Josef Schweiger

A blank is provided for producing a dental prosthesis (tooth crown) comprising a mechanically processable material block and a holder connected thereto for clamping in an automatic processing tool. Said block is provided with a subgingival anatomic implant connecting part which is protrusively arranged thereon and in which an implant fixture for fixing it to the implant head is formed. The holder is arranged on the surface of the block arrangement side and the implant fixture to a surface on the implant side, thereby making it possible to work the blank by means of a computer-controlled conventional tool. A threaded channel which is embodied in the centre of the block in a parallel direction with respect to the surface on the fixation side, the angular orientation of the mastication surface of the tooth crown with respect to the occlusion vertical and the subgingival anatomic implant connecting part make it possible to fix the prosthetic element (tooth crown) directly to the implant without an abutment and with correct orientation in the row of teeth.

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05-08-2021 дата публикации

DIMETHICONE-BASED ORAL VARNISH

Номер: US20210236387A1
Автор: Latta Mark A.
Принадлежит:

An oral varnish comprising a combination of two different viscosity dimethicone components, wherein the difference between the two different viscosity dimethicone components is about 2.0 million cP or greater; and comprising at least one active ingredient, which is preferably a fluoride donor. 1. An oral varnish comprising a first dimethicone material having a viscosity between 1 ,000 cP and 25 ,000 cP , and a second dimethicone material having a viscosity of between about 2.0 million and 3.0 million cP and a fluoride donor.2. The oral varnish of wherein the fluoride donor is selected from the group consisting of: sodium fluoride claim 1 , stannous fluoride claim 1 , sodium monofluorophosphate claim 1 , ACPF claim 1 , amine fluoride 297 claim 1 , and combinations thereof.3. The oral varnish of wherein the ratio of the first dimethicone to the second dimethicone is between 100:1 and 1:8.4. The oral varnish of wherein the concentration of the fluoride donor is between 2.5% and 5.0% of the total weight of the oral varnish.5. The oral varnish of wherein the concentration of the fluoride donor yields a concentration of fluoride between 15 claim 1 ,000 ppm and 50 claim 1 ,000 ppm.6. The oral varnish of further comprising a phosphate donor.7. The oral varnish of further comprising a calcium donor.8. The oral varnish of further comprising a flavorant or a sweetener.9. The oral varnish of further comprising an antimicrobial agent selected from the group consisting of: benzalkonium chloride claim 1 , cetylpyridinium chloride claim 1 , and combinations thereof.10. The oral varnish of further comprising one or more of a bulking agent claim 1 , a flowing agent claim 1 , a preservative claim 1 , or combinations thereof.11. The oral varnish of wherein the bulking agent is an edible wax.12. The oral varnish of further comprising L-lysine.13. An oral varnish consisting essentially of a first dimethicone material having a viscosity of between 1 claim 1 ,000 cP and 25 claim 1 ,000 cP ...

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12-08-2021 дата публикации

Agent For Conditioning Dentin And Enamel

Номер: US20210244627A1
Принадлежит:

Aqueous solution of a transition and main group metal salt for use as conditioning agent in dental restoration therapy and method of conditioning a tooth surface. 1. A method of conditioning a tooth surface comprisingapplying an aqueous solution comprising one or more transition and/or main group metal salts to the tooth surface.2. The method according to comprisingapplying the aqueous solution before the application of dental cements, filling composites, coating materials or veneering materials, in the conditioning of the tooth surface in dental restoration therapy, in the restoration of damaged teeth, or in restorative filling therapy, or before securing of fixed prosthodontics by adhesive cementing, in preventive measures such as the sealing of tooth fissures, or in orthodontic measures such as the securing of brackets.3. The method according to claim 1 ,wherein the step of applying the aqueous solution etches the tooth surface or inactivates a matrix metalloproteinase(s) and/or cysteine cathepsin(s)on the tooth surface.4. A method of pre-treating a surface of a dental restoration comprising claim 1 ,applying an aqueous solution comprising one or more transition and/or main group metal salts extraorally to the surface of the dental restoration,wherein the dental restoration comprises prostheses, artificial teeth, inlays, onlays, crowns and bridges.5. The method according to claim 1 ,wherein the one or more transition and/or main group metal salts are salts of a metal of group 4 and/or of main group 14 or 15 of the periodic table of elements.6. The method according to claim 1 ,wherein the transition and/or main group metal salt is a salt of a trivalent or tetravalent metal ion.7. The method according to claim 6 ,{'sup': 4+', '4+', '4+', '3+', '4+, 'wherein the metal ion is Zr, Hf, Ti, Bi or Sn.'}8. The method according to claim 1 ,{'sup': −', '−', '−', '3−', '2−, 'sub': '4', 'wherein the transition or main group metal salt comprises as anion Cl, Br, I, NO, SO, ...

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26-08-2021 дата публикации

Long-wave absorbing photoinitiators

Номер: US20210261578A1
Принадлежит: IVOCLAR VIVADENT AG

Compounds according to general formula (I)in which M is Ge or Sn, RAr isR1, R2, R3, R4, R5, independently of one another in each case, are —H, —F, —Cl, —OR6, —SR6, —N(R6)2, —CF3, —CN, —NO2, —COOR6, —CONHR6, a branched, cyclic or preferably linear C1-20 alkyl, C2-20 alkenyl, C1-20 alkyloxy or a C2-20 alkenoxy radical, which can be interrupted one or more times by O, S or —NR6— and substituted by one or more polymerizable groups and/or radicals R6, R6 is H, a branched, cyclic or preferably linear C1-20 alkyl or C2-20 alkenyl radical, R7 is a chemical bond, an n-valent aromatic radical or a branched, cyclic or preferably linear C1-20 alkylene radical, which can be interrupted one or more times by O, S or —NR6— and substituted by one or more polymerizable groups, ═O and/or radicals R6, n is 2 or 3 and m is 0 or 1. The compounds are particularly suitable as photoinitiators for radical polymerization and in particular for the production of dental materials.

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09-09-2021 дата публикации

FLUORIDE RELEASING COMPOSITION AND METHOD OF USE

Номер: US20210275403A1
Принадлежит:

Fluoride releasing compositions comprising water, ethanol, partially neutralized hydrogenated acid rosin, and fluoride releasing agent. The fluoride releasing compositions are often in the form of dental varnishes. Methods of using the same, such as by application to one or more teeth. 2. The fluoride releasing composition of claim 1 , wherein the fluoride releasing composition is in the form of a dispersion.3. The fluoride releasing composition of claim 1 , wherein at least a portion of the neutralized hydrogenated rosin acid is in the form of an alkali metal salt or an alkaline earth metal salt.4. The fluoride releasing composition of claim 1 , wherein the composition is capable of setting after no more than 2 minutes at 37° C.5. The fluoride releasing composition of claim 1 , which is in the form of a dental varnish.6. The fluoride releasing composition of claim 1 , wherein at least one of the one or more fluoride sources is sodium fluoride or strontium fluoride.7. The fluoride releasing composition of claim 1 , further comprising a hydrogenated ester rosin.8. The fluoride releasing composition of claim 1 , further comprising at least one excipient selected from the group consisting of fillers claim 1 , silica claim 1 , flavorings claim 1 , and claim 1 , sweeteners.9. The fluoride releasing composition of claim 1 , wherein at least −20 microgram/square centimeter of the fluoride is released from the composition in no more than one hour after application.10. The fluoride releasing composition of claim 1 , wherein at least 40 microgram/square centimeter of the fluoride is released from the composition in no more than one hour after application.11. A method of applying fluoride to one or more teeth claim 1 , the method comprising contacting the one or more teeth with a fluoride releasing composition of any of the previous claims.12. The method of claim 11 , further comprising setting the composition on at least one of the one or more teeth.13. The method of claim 11 ...

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30-08-2018 дата публикации

Arginine-containing restorative dental materials and methods of preventing and controlling caries associated with dental work

Номер: US20180243175A1

The present disclosure provides arginine-releasing restorative dental materials, methods of making the dental materials, and methods of using arginine-releasing restorative dental materials to and/or to treat, prevent and/or control caries, such as caries associated with dental work.

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30-07-2020 дата публикации

CHEMICAL POLYMERIZATION INITIATOR, ADHESIVE COMPOSITION, ADHESIVE COMPOSITION KIT, DENTAL MATERIAL, DENTAL MATERIAL KIT, AND METHOD OF STORING ADHESIVE COMPOSITION

Номер: US20200239604A1
Автор: FUKUDOME Keishi
Принадлежит:

Provided are a chemical polymerization initiator including (a) a thiourea compound, (b) a peroxyester, (c) a divalent copper compound, and (d) an aryl borate compound, an adhesive composition, an adhesive composition kit, a dental material, and a dental material kit each using the chemical polymerization initiator, and a method of storing the adhesive composition. 1. A chemical polymerization initiator , comprising:(a) a thiourea compound;(b) a peroxyester;(c) a divalent copper compound; and(d) an aryl borate compound.3. The chemical polymerization initiator according to claim 1 , wherein (b) the peroxyester is a peroxyester having a 10-hour half-life temperature of 80° C. or more.4. The chemical polymerization initiator according to claim 1 ,wherein (c) the divalent copper compound contains a divalent copper atom and a ligand coordinating to the divalent copper atom,wherein the ligand is selected from the group consisting of a halogen atom, an atomic group containing an oxygen atom, and an atomic group containing a nitrogen atom,wherein when the ligand is the atomic group containing the oxygen atom, the atomic group containing the oxygen atom coordinates to the divalent copper atom through the oxygen atom, andwherein when the ligand is the atomic group containing the nitrogen atom, the atomic group containing the nitrogen atom coordinates to the divalent copper atom through the nitrogen atom.5. An adhesive composition claim 1 , comprising:(a) a thiourea compound;(b) a peroxyester;(c) a divalent copper compound;(d) an aryl borate compound; and(e) an acidic group-containing polymerizable monomer.6. The adhesive composition according to claim 5 , further comprising (f) an acidic group-free polymerizable monomer.7. An adhesive composition kit claim 5 , comprising a combination of a first partial composition and a second partial composition in a state of being incapable of physical contact with the first partial composition claim 5 ,wherein an entirety of the ...

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30-09-2021 дата публикации

DENTAL POLYMERIZABLE COMPOSITION

Номер: US20210299000A1
Принадлежит:

A dental polymerizable composition includes: a first component containing a (meth)acrylate, a pentavalent vanadium compound, and a thiourea derivative; and a second component containing a (meth)acrylate and an organic peroxide.

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14-10-2021 дата публикации

METHOD FOR TREATING EXPOSED DENTAL PULP

Номер: US20210315666A1
Принадлежит: KING ABDULAZIZ UNIVERSITY

The invention relates to the application of a composition containing recombinant amelogenin and propylene glycol alginate (“PGA”) on to cut dentin tubules followed by installation of a definitive restorative in a single visit.

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06-08-2020 дата публикации

3D PRINTING OF COMPOSITION-CONTROLLED COPOLYMERS

Номер: US20200247062A1
Автор: LEE Young Jong, Sun Jirun
Принадлежит: ADA Foundation

A computer-controlled system for forming composition-controlled objects using 3D printing includes two or more liquid reactant reservoirs, and a mixing sub-system for mixing the two or more liquid reactant compositions, which in turn includes a flow control sub-system to control a mass ratio of the mixed two or more liquid reactant compositions. The computer-controlled system further includes a scanning sub-system that, under control of the computer, causes relative motion of a mixed liquid reactants nozzle over a substrate; thereby depositing the mixed liquid reactant compositions onto the substrate. The system still further includes an illuminations system, operated under control of the computer, to polymerize the deposited mixed liquid reactant compositions. 1. A computer-controlled system for forming a composition-controlled object using 3D printing , comprising:two or more reservoirs, each reservoir capable of storing a liquid reactant composition, each liquid reactant composition differing in chemical properties;a mixing sub-system for controlling liquid reach composition flow from the reservoirs, homogeneously mixing the liquid reactant compositions, and discharging homogeneously-mixed liquid reactant compositions;a stage configured to support a substrate that receives the discharged homogeneously-mixed liquid reactant compositions;an illumination sub system that polymerizes the received homogeneously-mixed liquid reactant composition; and a non-transitory computer-readable storage medium having stored thereon, machine instructions that when executed, cause production of a 3D composition-controlled object, and', control a mass ratio of each liquid reactant composition in a homogeneous mixture of the liquid reactant compositions;', 'cause relative motion between a homogeneously-mixed liquid reactants nozzle and the substrate;', 'deposit the homogeneously-mixed liquid reactant compositions onto the substrate; and', 'operate the illumination sub-system to ...

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21-10-2021 дата публикации

DENTAL DESENSITIZER

Номер: US20210322284A1
Автор: Li Chen, YANG Peng
Принадлежит:

A dental desensitizer, including, by weight: 1-20 parts of a protein modified by polyethylene glycol; 1-10 parts of tris(2-carboxyethyl) phosphine hydrochloride; 1-3 parts of calcium chloride; and 2-20 parts of a pH regulator. 1. A dental desensitizer , comprising , by weight:1-20 parts of a protein modified by polyethylene glycol;1-10 parts of tris(2-carboxyethyl) phosphine hydrochloride;1-3 parts of calcium chloride; and2-20 parts of a pH regulator.2. The dental desensitizer of claim 1 , comprising by weight:4-10 parts of the protein modified by polyethylene glycol;1-2 parts of tris(2-carboxyethyl) phosphine hydrochloride;1-2 parts of calcium chloride; and6-10 parts of the pH regulator.3. The dental desensitizer of claim 1 , wherein the protein is selected from the group consisting of lysozyme claim 1 , bovine serum protein claim 1 , insulin claim 1 , α-lactalbumin claim 1 , or a mixture thereof.4. The dental desensitizer of claim 2 , wherein the protein is selected from the group consisting of lysozyme claim 2 , bovine serum protein claim 2 , insulin claim 2 , α-lactalbumin claim 2 , or a mixture thereof.5. The dental desensitizer of claim 1 , wherein a number-average molecular weight of polyethylene glycol is in the range of 200 to 20000.6. The dental desensitizer of claim 2 , wherein a number-average molecular weight of polyethylene glycol is in the range of 200 to 20000.7. The dental desensitizer of claim 1 , wherein the pH regulator is sodium carbonate claim 1 , sodium bicarbonate claim 1 , potassium carbonate claim 1 , potassium bicarbonate claim 1 , dipotassium hydrogen phosphate claim 1 , dipotassium hydrogen phosphate claim 1 , sodium benzoate claim 1 , sodium citrate claim 1 , or a mixture thereof.8. The dental desensitizer of claim 2 , wherein the pH regulator is sodium carbonate claim 2 , sodium bicarbonate claim 2 , potassium carbonate claim 2 , potassium bicarbonate claim 2 , dipotassium hydrogen phosphate claim 2 , dipotassium hydrogen phosphate ...

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13-08-2020 дата публикации

DIMETHICONE-BASED ORAL VARNISH

Номер: US20200253833A1
Автор: Latta Mark A.
Принадлежит:

An oral varnish comprising a combination of two different viscosity dimethicone components, wherein the difference between the two different viscosity dimethicone components is about 2.0 million cP or greater; and comprising at least one active ingredient, which is preferably a fluoride donor. 1. An oral varnish comprising a first dimethicone material having a viscosity between 1 ,000 cP and 25 ,000 cP , and a second dimethicone material having a viscosity of between about 2.0 million and 3.0 million cP and at least one active agent.2. The oral varnish of wherein the at least one active agent is a fluoride donor.3. The oral varnish of wherein the fluoride donor is selected from the group consisting of sodium fluoride claim 2 , stannous fluoride claim 2 , sodium monofluorophosphate claim 2 , ACPF claim 2 , amine fluoride 297 claim 2 , and combinations thereof.4. The oral varnish of wherein the ratio of the first dimethicone to the second dimethicone is between 100:1 and 1:8.5. The oral varnish of wherein the concentration of the fluoride donor is between 2.5% and 5.0% of the total weight of the oral varnish.6. The oral varnish of wherein the concentration of the fluoride donor yields a concentration of fluoride between 15 claim 2 ,000 ppm and 50 claim 2 ,000 ppm.7. The oral varnish of further comprising a phosphate donor.8. The oral varnish of further comprising a calcium donor.9. The oral varnish of further comprising a flavorant or a sweetener.10. The oral varnish of further comprising an antimicrobial agent selected from the group consisting of: benzalkonium chloride claim 2 , cetylpyridinium chloride claim 2 , and combinations thereof.11. The oral varnish of further consisting of: a bulking agent claim 2 , a flowing agent claim 2 , a preservative claim 2 , and combinations thereof.12. The oral varnish of wherein the bulking agent is an edible wax.13. The oral varnish of further comprising L-lysine.14. An oral varnish consisting essentially of a first dimethicone ...

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13-08-2020 дата публикации

DENTAL MATERIALS WITH IMPROVED MECHANICAL PROPERTIES

Номер: US20200253834A1
Принадлежит:

Radically polymerizable dental material, which contains a combination of a thiourea derivative, a hydroperoxide and at least one peroxide as well as a transition metal compound as initiator system for the radical polymerization. 1. Radically polymerizable dental material , which comprises a combination of a thiourea derivative and a hydroperoxide as initiator system for the radical polymerization , characterized in that it additionally comprises at least one peroxide and at least one transition metal compound.2. Dental material according to claim 1 , which comprises a compound of the formula R—(OOH) claim 1 , in which R is an aliphatic or aromatic hydrocarbon radical and n is 1 or 2 claim 1 , as hydroperoxide.3. Dental material according to claim 2 , which comprises t-amyl hydroperoxide claim 2 , 1 claim 2 ,1 claim 2 ,3 claim 2 ,3-tetramethylbutyl hydroperoxide claim 2 , t-butyl hydroperoxide claim 2 , t-hexyl peroxide claim 2 , 2 claim 2 ,5-dimethyl-2 claim 2 ,5-di(hydroperoxy)hexane claim 2 , diisopropylbenzene monohydroperoxide claim 2 , paramenthane hydroperoxide claim 2 , p-isopropylcumene hydroperoxide claim 2 , cumene hydroperoxide (CHP) claim 2 , or a mixture thereof claim 2 , as hydroperoxide.4. Dental material according to claim 1 , which comprises α claim 1 ,α-bis(t-butylperoxy)diisopropylbenzene claim 1 , dicumene peroxide claim 1 , 2 claim 1 ,5-dimethyl-2 claim 1 ,5-bis(t-butylperoxy)hexane claim 1 , t-butyl cumyl peroxide claim 1 , di-t-butyl peroxide claim 1 , 2 claim 1 ,5-dimethyl-2 claim 1 ,5-bis(t-butylperoxy)hexyne-3 or a mixture thereof claim 1 , as peroxide.5. Dental material according to claim 1 , which comprises a diacyl peroxide comprising isobutyryl peroxide claim 1 , 2 claim 1 ,4-dichlorobenzoyl peroxide claim 1 , 3 claim 1 ,5 claim 1 ,5-trimethylhexanoyl peroxide claim 1 , octanoyl peroxide claim 1 , lauroyl peroxide claim 1 , stearyl peroxide claim 1 , succinic acid peroxide claim 1 , m-toluoyl benzoyl peroxide claim 1 , benzoyl peroxide ...

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13-08-2020 дата публикации

DENTAL COMPOSITE MATERIAL WITH ADAPTED RATIO OF FLEXURAL STRENGTH TO ELASTIC MODULUS, AND MILL BLANKS MADE OF SAID COMPOSITE MATERIAL

Номер: US20200253836A1
Принадлежит: KULZER GMBH

A polymerisable dental composite material comprising 1. A polymerisable dental composite material , comprising(i) 60 to 85% by weight of an inorganic filler component comprising at least one tectosilicate,(ii) 10 to 40% by weight of a mixture of at least two different urethane(meth)acrylates,(iii) 0.01 to 5% by weight of at least one di-, tri-, tetra- or multi-functional monomer not being a urethane(meth)acrylate,(iv) 0.01 to 10% by weight of at least one initiator, of an initiator system, as well as optionally of at least one stabiliser and optionally of at least one pigment, wherein the total composition of the composite material amounts to 100% by weight.2. The dental composite material according to claim 1 , wherein the tectosilicate has an average particle size dof 0.7 to 3.0 μm.3. The dental composite material according to claim 1 , wherein the inorganic filler component comprises at least one tectosilicate claim 1 , as well as optionally at least one dental glass and/or at least one amorphous metal oxide.4. The dental composite material according to claim 1 , wherein the tectosilicate comprises a feldspar or a feldspar mixture.5. The dental composite material according to claim 1 , wherein (ii) comprises a mixture of at least two different urethane(meth)acrylates claim 1 , wherein the mixture comprises at least one difunctional urethane(meth)acrylate having a bivalent alicyclic group and a difunctional urethane(meth)acrylate having a bivalent alkylene group claim 1 , and optionally at least one at least tetrafunctional dendritic urethane(meth)acrylate.6. The dental composite material according to claim 1 , wherein (ii) is selected from di-methacrylic esters of polyethers claim 1 , tri- claim 1 , tetra- or multi-functional methacrylic esters of polyethers.7. The dental composite material according to claim 1 , wherein the at least one stabiliser comprises water claim 1 , at least one benzophenone derivative and/or at least one phenol derivative.8. The dental ...

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29-08-2019 дата публикации

Composition with excellent storage stability using highly basic filler

Номер: US20190262238A1
Принадлежит: Shofu Inc

To provides a polymerizable composition having high storage stability and high color stability. To provide a two-paste type dental polymerizable composition of the present invention is a two-paste type dental polymerizable composition comprising a first paste containing (A) at least one kind of polemerizable monomer, an (B) organic peroxide as a chemical polymerization initiator, and a (C) basic filler, and a second paste containing (A) at least one kind of polemerizable monomer, a (C) basic filler and an (D) aromatic amine compound as a chemical polymerization accelerator, wherein the second paste contains 30 to 80 parts by weight of the (C) basic filler based on 100 parts by weight of the total amount of the second paste.

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25-11-2021 дата публикации

Storage Stable Glass Ionomer Composition And Use Thereof

Номер: US20210361535A1
Автор: Jahns Michael
Принадлежит:

The invention relates to a kit of parts for preparing a glass ionomer composition for dental use, the kit comprising a Paste A and a Paste B, Paste A comprising water, acid-reactive inorganic filler A, non acid-reactive filler B1, sugar alcohol with 6 hydroxyl moieties, Paste B comprising water, polyacid, non acid-reactive filler B2, the sugar alcohol being present in an amount of not more than 2 wt. % and the water being present in an amount of not more than 15 wt. %, wt. % with respect to the whole composition obtained when mixing Paste A and Paste B. The invention also relates to a hardened glass ionomer composition for dental use obtained by mixing Paste A and Paste B of the kit of parts 1. A kit of parts for preparing a glass ionomer composition for dental use , the kit comprising a Paste A and a Paste B , water,', 'acid-reactive inorganic filler A,', 'non acid-reactive filler B1,', 'sugar alcohol with 6 hydroxyl moieties,, 'Paste A comprising water,', 'polyacid,', 'non acid-reactive filler B2,, 'Paste B comprisingthe ratio of sugar alcohol to water in Paste A being in a range of 1:10 to 1:3 in parts by weight,the sugar alcohol being present in an amount of not more than 2 wt. % andthe water being present in an amount of not more than 15 wt. %,wt. % with respect to the whole composition obtained when mixing Paste A and Paste B.2. The kit of parts according to claim 1 , the sugar alcohol being selected from mannitol claim 1 , sorbitol claim 1 , and mixtures thereof.3. The kit of parts according to claim 1 , the ratio of sugar alcohol in parts by weight to acid-reactive inorganic filler A in parts by weight in Paste A being from 1:10 to 1:100.4. The kit of parts according to claim 1 , Paste A and Paste B being provided in a ratio of 2:1 to 1:2 with respect to volume.5. The kit of parts according to claim 1 , being characterized as follows: water in an amount of 5 to 20 wt. %,', 'acid-reactive inorganic filler A in an amount of 40 to 90 wt. %,', 'non acid-reactive ...

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27-08-2020 дата публикации

MICRO APPLICATOR FOR USE WITH DENTAL ADHESIVES

Номер: US20200268483A1
Принадлежит: KULZER GMBH

The invention relates to a dental micro-applicator () for applying a liquid or paste in a cavity of a natural tooth, having a hollow sleeve-like application head () with a distal () and a proximal region () and with an application region () at the front face of the proximal region () of the application head (), a punching spike (), the tip of which is oriented toward distal, being arranged in the hollow sleeve-like application head () in the proximal region (), and an opening () being formed at the front face of the proximal region () for passage of a liquid or paste to be applied, a micro-container () being inserted, in particular slid in or turned in, from distal into the hollow sleeve-like application head (), the outer shape of which being formed in fit to the inner shape of the application head (), and the micro-container () having an internal space () to receive the liquid or paste to be applied. Moreover, the micro-container is closed at its distal side () and at its proximal front face (). 112222151212. A dental micro-applicator () having a hollow sleeve-like application head () with a distal (.) and a proximal (.) region and with an application region (.) at the front face of the proximal region (.) of the application head () ,wherein{'b': 4', '11', '2', '2', '1', '7', '2', '1', '3', '2', '2', '3', '10', '3', '9', '6, 'at least one punching spike (), the tip () of which is oriented toward distal, is arranged in the hollow sleeve-like application head () in the proximal region (.), and an opening () is formed at the front face of the proximal region (.) for passage of a liquid or paste to be applied, a micro-container (), the outer shape of which corresponds to the positive of the inner shape of the application head () being formed as the negative, being inserted, in particular slid in or turned in, from distal into the hollow sleeve-like application head (), and the micro-container () having an internal space () to receive the liquid or paste to be applied, ...

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16-12-2021 дата публикации

METHOD FOR TOOTH CAPPING

Номер: US20210386517A1
Принадлежит: KING ABDULAZIZ UNIVERSITY

The invention relates to the application of a composition containing recombinant amelogenin and propylene glycol alginate (“PGA”) on to cut dentin tubules followed by installation of a definitive restorative in a single visit. 1. Method for tooth capping of a damaged tooth comprising:applying a composition comprising amelogenin and propylene glycol alginate (“PGA”) to a surface of a pulp containing tooth comprising open dentinal tubules or exposed pulp, wherein the amelogenin comprises an amino acid sequence that is identical to the amino acid sequence of SEQ ID NO: 2, wherein the amelogenin is present at a concentration of from 0.5 to 50 mg/cc in a vehicle containing the propylene glycol alginate, and wherein the vehicle is an aqueous solution; andapplying a permanent dental restorative on top of the applied composition comprising the amelogenin and the PGA.2. The method of claim 1 , which is a method for indirect capping and wherein the composition is applied to the open dentinal tubules.3. The method of claim 1 , which is a method of direct capping and the composition is applied to the exposed pulp.4. The method of claim 1 , further comprising claim 1 , after applying the composition claim 1 , applying a permanent dental restorative on top of the applied composition on the same day.5. (canceled)6. (canceled)7. (canceled)8. (canceled)9. (canceled)10. The method of claim 1 , wherein the composition consists essentially of recombinant human amelogenin and the vehicle containing the propylene glycol alginate.11. The method of claim 1 , wherein the composition further comprises a remineralization agent selected from the group consisting of a material providing calcium ions claim 1 , a material providing phosphorous ions claim 1 , and a material providing fluoride ions.12. The method of claim 1 , wherein said composition further comprises at least one non-amelogenin enamel matrix protein.13. (canceled)14. (canceled)15. (canceled)16. The method of claim 1 , wherein the ...

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13-10-2016 дата публикации

Photoactivatable oxygen-evolving compositions and methods for teeth whitening

Номер: US20160296444A1
Принадлежит: Klox Technologies Inc

Disclosed herein are compositions that can rapidly evolve oxygen and/or activated oxygen generally including an oxidizing agent (e.g., a peroxide) and an activating agent that has an emission wavelength between about 400 nm and about 570 nm (e.g., Eosin B, Eosin Y, or Erythrosine B). Methods of employing these compositions to whiten teeth, and methods of making these compositions and kits that include some or part of the composition ingredients, are also described.

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22-10-2015 дата публикации

Antibacterial monomers, antibacterial resins and dental composites comprising the antibacterial resins

Номер: US20150299345A1
Автор: Huakun Xu, Michael Weir
Принадлежит: University of Maryland at Baltimore

Provided herein are antibacterial monomers, antibacterial resins comprising a resin and the monomers, and dental composites comprising the antibacterial resins and a filler, and methods of making the same. The dental composite can optionally contain amorphous calcium phosphate nanoparticles. The dental composites display strongly antibacterial properties, increased calcium and phosphate ion release, and improved mechanical properties.

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03-09-2020 дата публикации

Dental Products and Procedures

Номер: US20200276002A1
Автор: Ray F. Stewart
Принадлежит: Bay Materials LLC

Polymeric shells which fit over one or more natural teeth to change the perceived color of the teeth, and optionally to provide orthodontic support. The shells can be prepared by thermoforming selected polymeric sheets which contain optical additives over a physical image of the teeth, or by depositing polymeric compositions containing optical additives over a physical image of the teeth, or by additive manufacturing based upon a digital image of the teeth. The optical additives cause the combination of the shell and the teeth to have a desired appearance. At least part of the shell preferably has transparency greater than 75%, particularly greater than 85%.

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25-10-2018 дата публикации

Dental composition

Номер: US20180303722A1
Принадлежит: Dentsply Sirona Inc

The present invention relates to a dental composition comprising a specific polymerization initiator system comprising a compound having an acylsilyl- or acylgermanyl-group. The present invention also relates the use of the compound having an acylsilyl- or acylgermanyl group for the preparation of a dental composition.

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24-09-2020 дата публикации

FLUORINE COATING AGENT HAVING ENHANCED DENTAL TUBULE PERMEABILITY AND COATING ENDURANCE AND METHOD FOR PREPARING SAME

Номер: US20200297586A1
Принадлежит:

A fluorine coating agent having enhanced dental tubule permeability and coating endurance, and a method for preparing the same. The fluorine coating agent applied on the surface of a tooth is enhanced in abrasion resistance to increase a period of time during which a coating membrane lasts, thereby preventing dental caries. Further, the curing time of the fluorine coating agent can be controlled to allow the agent to permeate and thus block the dental tubule. 1. A fluoride coating agent with enhanced dentinal tubule penetrability and enhanced coating durability , the fluoride coating agent comprising high-molecular-weight poly(vinyl acetate) (PVAc) having a weight-average molecular weight of 300 ,000 to 600 ,000.2. The fluoride coating agent of claim 1 , further comprising rosin claim 1 , a fluoride compound claim 1 , an emulsifier claim 1 , and a solvent.3. The fluoride coating agent of claim 2 , further comprising low-molecular-weight poly(vinyl acetate) (PVAc) having a weight-average molecular weight of 1 claim 2 ,000 to 150 claim 2 ,000.4. The fluoride coating agent of claim 2 , wherein the fluoride coating agent includes the rosin at 15 to 35 wt % claim 2 , the poly(vinyl acetate) at 8 to 25 wt % claim 2 , the fluoride compound at 1 to 10 wt % claim 2 , the emulsifier at 01 to 15 wt % claim 2 , and the solvent at 27 to 71 wt % claim 2 , andthe poly(vinyl acetate) is high-molecular-weight poly(vinyl acetate) or a mixture of high-molecular-weight poly(vinyl acetate) and low-molecular-weight poly(vinyl acetate).5. The fluoride coating agent of claim 2 , wherein the emulsifier includes at least one nonionic surfactant selected from the group consisting of glycol ethers claim 2 , sorbitan fatty acid esters claim 2 , alkyl polyglycosides claim 2 , and alkoxylated alcohols.6. The fluoride coating agent of claim 2 , wherein the fluoride coating agent has a viscosity of 800 to 1 claim 2 ,500 cP.7. A method of preparing a fluoride coating agent with enhanced dentinal ...

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01-10-2020 дата публикации

DENTAL IMPLANT MADE OF ZIRCONIA OR ALUMINA WITH HEALING ELECTRICAL PROPERTIES AND ITS PRODUCTION METHOD

Номер: US20200306013A1
Принадлежит:

The present disclosure relates to a dental implant which comprises in its interior vertical and radial channels terminating in the form of holes in the lateral and lower surfaces of the implant and wherein each channel is filled by electrically conductive material in order to promote multiple electric fields along the surface of the implant. Electric fields range from 5 to 100 mv. A dental implant is described defining an axis along its length, obtained from a sintered block, which comprises in its interior longitudinal and radial channels which terminate in the form of holes in the surface of the implant and wherein each channel comprises an electrically conductive material for promoting multiple electric fields along the surface of the implant. 1. A dental implant defining an axis along its length , and being defined from a sintered block , which comprises:in its interior longitudinal and radial channels terminating at holes in the surface of the implant, andan electrically conductive material positioned to create multiple electric fields along the surface of the implant.2. The dental implant according to claim 1 , wherein the radial channels terminate at the holes in a lateral surface of the implant and the longitudinal channels terminate at the holes in a top surface of said implant.3. The dental implant according to claim 1 , wherein the radial channels terminate at the holes in a lateral surface claim 1 , the respective electrically conductive material being connected in such a way as to alternate electrical poles along the lateral surface of the implant.4. The dental implant according to claim 1 , wherein the longitudinal and radial channels terminate at the holes in lateral and lower surfaces of the implant.5. The dental implant according to claim 1 , comprising an electronic component located on the abutment or crown claim 1 , which comprises a battery having an integrated circuit claim 1 , a chip claim 1 , or a piezoelectric component.6. The dental implant ...

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01-10-2020 дата публикации

PULP REGENERATION COMPOSITIONS AND METHODS OF FORMING AND USING THE SAME

Номер: US20200306143A1
Принадлежит:

A dental tissue regenerative composition. The composition includes a combination of (1) human dental pulp stem cells and (2) at least one of human umbilical vein endothelial cells or vascular endothelial growth factor. The combination is encapsulated in a light-activated gelatin methacrylate hydrogel. 1. A dental tissue regenerative composition comprising a combination of (1) human dental pulp stem cells and (2) at least one of human umbilical vein endothelial cells or vascular endothelial growth factor , wherein the combination is encapsulated in a light-activated gelatin methacrylate hydrogel.2. The composition of claim 1 , further comprising a photo-initiator.3. The composition of claim 2 , wherein the photo-initiator is present at a concentration of about 0.05% to about 0.5% (w/v).4. The composition of claim 2 , wherein the photo-initiator is selected from the group consisting of: 1-[4-(2-hydroxyethoxy)-phenyl]-2-hydroxy-2-methyl-1-propane-1-one claim 2 , azobisisobutyronitrile claim 2 , benzoyl peroxide claim 2 , di-tert-butyl peroxide claim 2 , 2 claim 2 ,2-dimethoxy-2-phenylacetophenone claim 2 , Eosin Y claim 2 , and any combination thereof.5. The composition of claim 1 , wherein the methacrylate hydrogel is present at a concentration of about 3% to about 5% (w/v).6. The composition of claim 1 , wherein the human dental pulp stem cells have been isolated from dental pulp.7. The composition of claim 6 , wherein the dental pulp is from a mature tooth.8. The composition of claim 7 , wherein the mature tooth is a wisdom tooth.9. The composition of claim 7 , wherein the mature tooth is a cryopreserved tooth.10. The composition of claim 1 , wherein the composition is used for pulpal revascularization claim 1 , to replace infected pulpal tissues in pulpotomy claim 1 , or as a temporary intra canal medicament.11. The composition of claim 1 , wherein the composition is used for regenerating pulp-like tissues in tooth root segments.12. The composition of claim 1 , ...

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26-11-2015 дата публикации

Dental adhesive

Номер: US20150335535A1
Принадлежит: DENTSPLY INTERNATIONAL INC

A one-part self-etching, self-priming dental adhesive having a pH of at most 2, which comprises an aqueous mixture containing (i) one or more polymerizable monomers optionally containing an acidic group, (ii) optionally one or more organic or inorganic acids, (iii) a polymerization initiator, and (iv) a thermal polymerisation inhibitor of the following formula (I): wherein R′ 1 represents a hydrogen atom, or a saturated hydrocarbon group having 1 to 18 carbon atoms. R′ 2 , which may be the same or different if more than one R′ 2 is present, independently represent a saturated hydrocarbon group having 1 to 18 carbon atoms, and c represents an integer of from 1 to 4.

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08-10-2020 дата публикации

DESINFECTANT BONE AND DENTAL FILLER MATERIALS COMPRISING LIPOSOMES

Номер: US20200315923A1
Автор: Raddi Samir
Принадлежит:

Bone or dental filler materials include liposomes, which give them disinfectant properties. These filler materials are used, in particular, for filling dental pulp or a bone defect. 114.-. (canceled)15. A dental or bone filler material that is disinfectant against bacteria responsible for dental or bone infections , comprising:a matrix material; andliposomes, wherein the liposomes are selected from among liposomes carrying a bactericidal agent and unladen cationic liposomes.16. The filler material of claim 15 , wherein the matrix material comprises one or more matrix materials selected from among: calcium hydroxide claim 15 , calcium silicate claim 15 , calcium disilicate or trisilicate claim 15 , hydroxyapatite claim 15 , silicone claim 15 , zinc oxide claim 15 , eugenol claim 15 , dental resin claim 15 ,alginate claim 15 , collagen claim 15 , hydroxyapatite claim 15 , calcium phosphate claim 15 , calcium carbonate tricalcium phosphate claim 15 , fluoro-alumino-silicate claim 15 , calcium sulphate claim 15 , bioactive glass claim 15 , and a two-phase ceramic.17. The filler material of claim 15 , wherein the liposomes have a size between 20 and 8000 nm.18. The filler material of claim 15 , wherein the liposomes comprise 20% (by weight) of the filler material.19. The filler material of claim 15 , further comprising at least one surfactant.20. The filler material of claim 15 , wherein the matrix material includes a cement including calcium hydroxide or calcium silicate claim 15 , and wherein the liposomes comprise neutral lipids carrying a bactericidal agent.21. The filler material of claim 20 , wherein the cement includes calcium trisilicate claim 20 , and wherein the liposomes comprise 1 claim 20 ,2-dioleoyl-sn-glycero-3-phosphoethanolamine (DOPE) or 1 claim 20 ,2-dipalmitoyl-sn-glycero-3-phosphocholine (DPPC) and carry chlorhexidine.22. The filler material of claim 15 , wherein the liposomes carry chlorhexidine.23. The filler material of claim 15 , wherein the ...

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08-10-2020 дата публикации

INORGANIC DENTAL FILLERS INCLUDING A SILANE TREATED SURFACE

Номер: US20200315924A1
Принадлежит:

The present disclosure provides an inorganic dental filler including a surface treated with at least one silane. Exemplary silanes described in the present disclosure for the surface treatment of the inorganic filler include silanes of Formula I and/or Formula II: (R)—(CRR)—(NH—C(O)—O—CH—CH)—N(R)—C(O)—NH—(CH—CH—O)—CRR—CH-(A) Formula I (R)—(CRR)—NH—C(O)—O—CRR-(L)-CH-(A) Formula II, wherein: Ris a silane-containing group of the formula —Si(Y)(R), wherein Y is a hydrolysable group, Ris a monovalent alkyl or aryl group, and p is 1, 2, or 3. Methods of making and using the surface treated inorganic dental fillers are also disclosed. 1. A surface-treated inorganic dental filler comprising an inorganic dental filler having a surface treated with at least one silane represented by Formula I:{'br': None, 'sup': Si', '1', '2', '5', '3', '4, 'sub': n', '2', '2', 'q', '2', '2', 't', '2, '(R)—(CRR)—(NH—C(O)—O—CH—CH)—N(R)—C(O)—NH—(CH—CH—O)—CRR—CH-(A) \u2003\u2003 Formula I,'}wherein:{'sup': Si', '6, 'sub': p', '3-p, 'Ris independently a silane-containing group of the formula —Si(Y)(R)'}Y is a hydrolysable group;{'sup': 1', '2', '3, 'each R, R, and Ris independently selected from H, an alkyl group, an aryl group, an alkaryl group, and an aralkyl group;'}{'sup': '4', 'sub': 2', 'm, 'each Ris independently selected from H, an alkyl group, an aryl group, an alkaryl group, an aralkyl group, and a group of the formula —(CH)-(A);'}{'sup': 1', '7, 'sub': '2', 'each A is independently a (meth)acryl group of the formula X—C(O)—C(R)═CH;'}{'sup': 1', '7, 'Xis —O, —S, or —NR;'}{'sup': 5', 'Si', '1', '2', 'Si', '1', '2', '8', '8', '3', '4', '8', '9, 'sub': n', '2', '2', 'q', 'n', '2', 'm', '2', 'm', '2', 'm', '2', '2', 't', '2', '2', 'm, 'Ris H, an alkyl group, a cycloalkyl group, an aryl group, an alkaryl group, an aralkyl group, a group of the formula (R)—(CRR)—(NH—C(O)—O—CH—CH)—, a group of the formula (R)—(CRR)—NH—C(O)—N(R)—(CH)—, a group of the formula —(CH)-(A), a group of the formula ( ...

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23-11-2017 дата публикации

Dental materials and methods

Номер: US20170333297A1
Автор: Bradley D. Craig
Принадлежит: 3M Innovative Properties Co

The present application is directed to a dental material and a method of using the dental material. The dental material can include a hardenable resin; an initiator system; a filler; and from about 1 wt % to about 20 wt % zinc compound, based on the weight of the hardenable resin. The contrast ratio of the cured dental material increases by at least about 10 units after continuous exposure to an aqueous solution for 21 days

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22-10-2020 дата публикации

DENTAL PORCELAIN PASTE SUPERIOR IN APPLICATION PROPERTY

Номер: US20200330331A1
Автор: KAWATA Keita, Kono Kenji
Принадлежит: SHOFU INC.

To provide a dental porcelain paste which can maintain maintaining the paste state and have excellent application property for a long period of time and hardly causes carbonization or bubbles due to the influence of an organic component or a polymer component during firing. The present invention provides a dental porcelain paste for preparing a dental prosthesis device, comprising: 50.0 to 80.0 wt. % of a glass powder (a) having a maximum particle diameter of 100 μm or less and an average particle diameter of 1 to 20 μm, 0.5 to 10.0 wt. % of a hydrophobized fine particle silica (b) having an average primary particle diameter of 1 to 50 nm, and 10.0 to 49.5 wt. % of an organic solvent (c) having a boiling point it is within (bp) of 100 to 300° C. 1. A dental porcelain paste for preparing a dental prosthesis device , comprising:50.0 to 80.0 wt. % of a glass powder (a) having a maximum particle diameter of 100 μm or less and an average particle diameter of 1 to 20 μm,0.5 to 10.0 wt. % of a hydrophobized fine particle silica (b) having an average primary particle diameter of 1 to 50 nm, and10.0 to 49.5 wt. % of an organic solvent (c) having a boiling point (bp) of 100 to 300° C.2. The dental porcelain paste according to claim 1 , further comprising:a coloring material (d) and/or a fluorescent material (e). This application is based on and claims the benefit of priority from Japanese Patent Application Serial No. 2019-9167 (filed on Jan. 23, 2019), the contents of which are hereby incorporated by reference in their entirety.The present invention relates to a dental porcelain paste which is used for preparing a dental prosthesis device such as an artificial tooth and is a paste of a dental porcelain material or a coloring material for dental ceramics which are preferably used in building up a porcelain material manually by a dental technician.A dental porcelain material is a glass ceramics material comprising feldspar and the like as a raw material and is mainly used for ...

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22-10-2020 дата публикации

PRODUCTION OF ANTIBACTERIAL AND REGENERATIVE DENTAL COMPOSITE USING SUPPORTIVE PHASES (FILLERS) ANTIBACTERIAL AND BIOACTIVE PROPERTIES OF WHICH ARE IMPROVED

Номер: US20200330332A1
Принадлежит: Yildiz Teknik Universitesi

The present invention relates to restorative purpose acrylic dental composite filling material which are curable by light and are polymerizable, and which contains only β-tricalcium phosphate (β-TCP), nanocrystalline cellulose (NCC), hydroxy apatite particles/fibers/whiskers, AI-Sr-OF and AI-Sr-Si-OF and/or mixtures thereof as supportive phase system for conferring regenerative and antibacterial properties to composite filling materials, and relates to production method of said dental composite filling material. 129.-. (canceled)30. An acrylic dental composite material comprising:an organic compound which can be cured with light and which can be polymerized as the main matrix,a photo-initiator, and an oxyfluoride compound, and', {'sub': 2', '2', '2', '2', '2', '2, 'SiO, SiO/Silan, Si/Zr nano-cluster, Si/Zr/Silan nano-cluster, TiO, TiO/Silan, ZrO, ZrO/Silan, 3YSZ, β-tricalcium phosphate (β-TCP), nano-crystalline cellulose (NCC), hydroxyl-apatite particles/fibers/whiskers, or any combination thereof,'}], 'a supportive phase comprisingwherein the supportive phase provides regenerative and antibacterial characteristics to said composite material.31. The acrylic dental composite material according to claim 30 , wherein the organic compound comprises BisGMA between 1% and 5% by weight claim 30 , HEMA between 5% and 10% by weight claim 30 , UDMA between 5% and 10% by weight and TEGDMA between 1% and 5% by weight.32. The acrylic dental composite material according to claim 30 , wherein said photo-initiator is selected from the group comprising CQ claim 30 , diphenyl(2 claim 30 ,4 claim 30 ,6-trimethylbenzoyl) phosphine oxide claim 30 , 1-phenyl-1 claim 30 ,2-propandione claim 30 , 4-EDMAB claim 30 , and any combination thereof.33. The acrylic dental composite material according to claim 32 , wherein the acrylic dental composite material comprises CQ between 0.1 and 0.5 wt. % claim 32 , diphenyl(2 claim 32 ,4 claim 32 ,6-trimethylbenzoyl)phosphine oxide between 0.1 and 0.5 ...

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22-10-2020 дата публикации

MATERIAL FOR DEMINERALIZING DENTIN COLLAGEN FIBRIL, PREPARATION METHOD AND APPLICATION THEREOF

Номер: US20200330360A1
Принадлежит:

a The invention relates to a dentin collagen fibril demineralizing material, and a preparation method and application thereof. The invention relates to a conjugate of water-soluble chitosan and an aminocarboxylic acid metal chelating agent used for dental demineralization, preferably dentin demineralization. The invention also discloses a dentin collagen fibril demineralizing material and a preparation method and application thereof, wherein the material is prepared from 0.5-1 part by mass of water-soluble chitosan, 10-30 parts by mass of EDTA, and 0.8-1.5 parts by mass of cross-linking agent. The invention relates to a dental demineralization composition comprising a conjugate and a material of the invention. The conjugate, material and composition can be used for dentin demineralization treatment before dental bonding and restoration. When used as a dentin collagen demineralizing agent, they have excellent selective extrafibrillar demineralization performance, good biological compatibility, effective anti-bacterial activity, endogenous matrix protease-inhibiting activity and extremely low cytotoxicity. 1. A conjugate of a water-soluble chitosan and an aminocarboxylic acid metal chelating agent , for use in dental demineralization , preferably dentin demineralization.2. The conjugate according to claim 1 , wherein the aminocarboxylic acid metal chelating agent is selected from the group consisting of ethylenediaminetetraacetic acid claim 1 , hydroxyethyl ethylenediaminetriacetic acid claim 1 , diethylenetriaminepentaacetic acid claim 1 , aminotriacetic acid claim 1 , dihydroxyethyl glycine claim 1 , ethylene glycol tetraacetic acid claim 1 , ethylenediamine diacetic acid claim 1 , triethylenetetraaminehexaacetic acid claim 1 , cyclohexanediamine tetraacetic acid claim 1 , 1 claim 1 ,4 claim 1 ,7 claim 1 ,10-tetraazacyclododecane-1 claim 1 ,4 claim 1 ,7 claim 1 ,10-tetraacetic acid claim 1 , 1 claim 1 ,4 claim 1 ,8 claim 1 ,11-tetraazacyclododecane-1 claim 1 ,4 ...

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05-11-2020 дата публикации

Hydrogel materials for obturation

Номер: US20200347191A1
Принадлежит: Sonendo Inc

A curable mixture and method of using the mixture are disclosed. In some embodiments, the mixture comprises a water soluble acrylate-based monomer, a water-soluble acrylamide-based monomer, or a mixture thereof, and has properties suitable for use as a tooth filling after curing.

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05-11-2020 дата публикации

SURFACE PRIMER COMPOSITIONS AND METHODS OF USE

Номер: US20200347247A1
Принадлежит: Envista

In one embodiment, the present application discloses a surface binding compound of the Formula I or Formula II: 116.-. (canceled)19. The method of claim 17 , wherein each EG is independently selected from the group consisting of a Calkyl claim 17 , optionally substituted Calkyl claim 17 , —N(CH)CHOH claim 17 , —N(CHOH)CH claim 17 , —N(CHOH) claim 17 , —N(CHCH)CHCHOH claim 17 , —N(CHCHOH)CHCH claim 17 , —N(CHCHOH) claim 17 , —N(CH)CHSH claim 17 , —N(CHSH)CH claim 17 , —N(CHSH) claim 17 , —N(CHCH)CHCHSH claim 17 , —N(CHCHSH)CHCH claim 17 , —N(CHCHSH) claim 17 , —N(CH)CHNH claim 17 , —N(CHNH)CH claim 17 , —N(CHNH) claim 17 , —N(CHCH)CHCHNH claim 17 , —N(CHCHNH)CHCH claim 17 , —N(CHCHNH) claim 17 , —N(CH)CHOH X claim 17 , —N(CHOH)CHX claim 17 , —N(CHOH)X claim 17 , —N(CHCH)CHCHOH X claim 17 , —N(CHCHOH)CHCHX claim 17 , —N(CHCHOH)X claim 17 , —N(CH)CHSH X claim 17 , —N(CHSH)CHX claim 17 , —N(CHSH)X claim 17 , —N(CHCH)CHCHSH X claim 17 , —N(CHCHSH)CHCHX claim 17 , —N(CHCHSH)X claim 17 , —N(CH)CHNHX claim 17 , —N(CHNH)CH claim 17 , X claim 17 , —N(CHNH)X claim 17 , —N(CHCH)CHCHNHX claim 17 , —N(CHCHNH)CHCHX claim 17 , —N(CHCHNH)X claim 17 , CH═CHC(O)O— claim 17 , CH═C(Calkyl)C(O)O— claim 17 , CH═C(phenyl)C(O)O— claim 17 , CH═CHS(O)O— claim 17 , isocyanate claim 17 , epoxy claim 17 , oxetanyl claim 17 , styrenyl claim 17 , vinyl ether claim 17 , —Ar-(BG) claim 17 , phenyl and naphthyl claim 17 , where Xis Cl claim 17 , Br and I.20. The method of claim 17 , wherein each EG is independently selected from the group consisting of aryl claim 17 , heteroaryl claim 17 , imidazolyl claim 17 , imidazolium claim 17 , indolinium claim 17 , indolyl claim 17 , —NRRR claim 17 , —PO claim 17 , —NRRRX claim 17 , —POY claim 17 , —SOY claim 17 , wherein each R claim 17 , Rand Ris independently H and Calkyl and Calkyl substituted with 1 claim 17 , 2 or 3-OH or 1 claim 17 , 2 or 3-NH claim 17 , Xis Cl claim 17 , Br and Iand Y is H or —NRRR.21. The method of claim 17 , wherein each of SP1 claim ...

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05-11-2020 дата публикации

PHOTO-CLEAVABLE PRIMER COMPOSITIONS AND METHODS OF USE

Номер: US20200347248A1
Принадлежит: Envista

In one embodiment, the present application discloses a photo-cleavable surface binding compound of the Formula I and Formula II: 111.-. (canceled)13. The method of claim 12 , wherein each EG and EG1 is independently selected from the group consisting of a Calkyl claim 12 , CH═CHC(O)O— claim 12 , CH═C(Calkyl)C(O)O— claim 12 , CH═C(phenyl)C(O)O— claim 12 , CH═C(Calkyl)S(O)O— claim 12 , isocyanate claim 12 , epoxy claim 12 , oxetanyl claim 12 , styrenyl claim 12 , vinyl ether claim 12 , —Ar—(BG) claim 12 , phenyl and naphthyl.14. The method of claim 12 , wherein each EG and EG1 is independently selected from the group consisting of imidazolyl claim 12 , indolyl claim 12 , —NRRR claim 12 , —PO claim 12 , —NRRRX claim 12 , —POY claim 12 , —SOY claim 12 , wherein each R claim 12 , Rand Ris independently H and Calkyl claim 12 , X is Cl claim 12 , Br and I and Y is H or —NRRR.15. The method of claim 12 , wherein each of SP1 claim 12 , SP2 and SP3 is a spacer independently selected from the group consisting of —(CH)— claim 12 , —NH(CH)NH— claim 12 , —NHCHCHC(O)— claim 12 , —C(O)NHCHCHNH— claim 12 , —NHCHC(O)— claim 12 , —NHC(O)— claim 12 , —C(O)N— claim 12 , —NC(O)— claim 12 , —C(O)NH— claim 12 , —NCHC(O)— claim 12 , —C(O)NCH— claim 12 , —(CHCHO)— claim 12 , —(CHCHO)CHCH— claim 12 , —CHCH—(CHCHO)— and —OCH(CHO—)—.16. The method of claim 12 , wherein each of SP1 claim 12 , SP2 and SP3 is a spacer independently selected from the group consisting of —NRR— claim 12 , —PO— claim 12 , —NRRX— claim 12 , —POY— claim 12 , —SOY— claim 12 , —(CH)—NRR— claim 12 , —(CH)—PO claim 12 , —(CH)—NRR—X— claim 12 , —(CH)—POY— and —O—PO(O)O—(CH)—N(RR)—.17. The method of claim 12 , wherein each of SP1 claim 12 , SP2 and SP3 is independently comprise of a group selected from —CHCH—C(O)NHCHCHNH—C(O)NCH— claim 12 , —NHC(O)—(CHCHO)—(CH)— claim 12 , —(CHCHO)CHCH—C(O)NCH—(CHCHO)CHCH— claim 12 , —NHCHCHC(O)—(CH)—PO claim 12 , —PO—(CH)—NRRX— claim 12 , —(CHCHO)—(CH)—PO claim 12 , —NRRX—(CH)—PO and —PO—( ...

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12-11-2020 дата публикации

METHOD FOR REVEALING RESIN-BASED COMPOSITES

Номер: US20200352829A1
Принадлежит:

The present disclosure relates to a combination, a composite staining kit and a method for revealing a composite material on a tooth. 1. A method of revealing a composite material comprising:a. applying a phenolic residue-containing compound to the composite material; andb. applying a staining agent after step a.2. The method of claim 1 , wherein said step of applying the phenolic residue-containing compound is comprising applying a solution of said phenolic residue-containing compound to the composite material and drying said solution of said phenolic residue-containing compound before applying the staining agent.3. The method of claim 1 , wherein said step of applying the staining agent is comprising applying a solution of said staining agent and drying said solution of said staining agent.4. The method of claim 1 , wherein said step of applying the phenolic residue-containing compound is comprising applying a solution of said phenolic residue-containing compound to the composite material claim 1 , drying said solution of said phenolic residue-containing compound claim 1 , washing said composite material with water and drying said washed composite material before applying the staining agent and wherein said step of applying the staining agent is comprising applying a solution of said staining agent claim 1 , drying said solution of said staining agent claim 1 , washing said composite material with water and drying said washed composite material.5. The method of claim 1 , wherein said the phenolic residue-containing compound is a mono-aromatic claim 1 , topically non-toxic compound.6. The method of claim 1 , wherein said phenolic residue-containing compound is a mono-aromatic claim 1 , orally non-toxic compound in a form of an ethanolic solution claim 1 , the compound being non-toxic for natural tooth and having one or more of the following properties: substantially soluble in ethanol at room temperature claim 1 , a MW of from about 90 to 220 claim 1 , and a Log P ...

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12-11-2020 дата публикации

RAPID COMPOSITION-CONTROLLED PHOTO-COPOLYMERIZATION OF STYRENE AND METHACRYLATE DERIVATIVES AND USES THEREOF

Номер: US20200354493A1
Автор: Sun Jirun
Принадлежит: ADA Foundation

A composition of matter includes a mixture of styrene derivative monomers and methacrylate and/or acrylate derivative monomers, which have one or more urethane, carbamate, amide, and/or amine functional groups, and initiators, and the compositions are used to achieve composition control of the forming polymer, with the mole fraction of acrylate/methacrylate and styrene moieties in the forming polymer determined by the chemistry and composition of the feeding monomers. 1. A method for controlling a composition of a polymer , comprising:disposing in a monomer mixture, an equal molar quantity of urethane dimethacrylate (UDMA) and triethyleneglycol-divinylbenzyl ether (TEG-DVBE); andpolymerizing the monomer mixture by light irradiation to form a composition-controlled cross-linked resin.2. The method of claim 1 , further comprising disposing in the monomer mixture one or more initiators selected from the group consisting of camphorquinone or derivatives claim 1 , a combination of camphorquinone and amine(s) derivatives claim 1 , phenylpropanedione or derivatives claim 1 , bisacylphosphine oxide or derivatives claim 1 , and 1-hydroxycyclohexyl phenyl ketone.3. The method of claim 1 , further comprising;disposing in the monomer mixture one or more porous objects selected from the group consisting of metal oxide particles, ceramic particles, chitosan, and polysaccharide particles, wherein the particles are selected from the group consisting of nano-scale particles and micro-scale particles; andpolymerizing the monomer mixture following infiltration of the monomer mixture into pores of the porous objects.4. The method of claim 1 , further comprising claim 1 , disposing in the monomer mixture one or more solvents.5. The method of claim 1 , further comprising adding heat during the polymerizing.6. The method of claim 1 , wherein the light is visible light.7. The method of claim 1 , further comprising:selectively exposing the monomer mixture to light irradiation to create ...

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10-12-2020 дата публикации

Multi-part dental composition having staged viscosity prior to hardening

Номер: US20200383877A1
Принадлежит: 3M Innovative Properties Co

Disclosed herein are non-aqueous compositions including: a flowable Part A including at least one resin and Reactant A; and a flowable Part B including at least one resin and Reactant B; wherein at least one of flowable Part A and flowable Part B further includes a free radically polymerizable resin; wherein at least one of flowable Part A and flowable Part B further includes a free radical initiator system; wherein flowable Part A and flowable Part B are capable of being mixed to provide a flowable mixed composition; wherein when flowable Part A and flowable Part B are mixed, Reactant A and Reactant B are capable of interacting to cause a non-free radical reaction within a first staging time to provide a first staged stable consistency for the mixed composition; wherein Reactant A comprises an acid and Reactant B comprises a base, and upon mixing flowable Part A and flowable Part B, the Reactant A acid is capable of reacting with the Reactant B base in an ionic acid-base reaction; and wherein the mixed composition having the first staged stable consistency is capable of forming a hardened dental composition upon initiation of free radical polymerization.

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24-12-2020 дата публикации

Dental Composite Milling Blanks with Enhanced Mechanical Properties and Methods of Making the Same

Номер: US20200397543A1
Автор: Ling Long, Ma Yumeng
Принадлежит:

A dental resin composite comprising a thermally cured composition of polymeric resin monomers and inorganic fillers that comprise at least 80 wt % total filler loading is provided. Mill blocks made from the dental resin composite and produced via free radical polymerization under high-temperature (approximately 160° C. to 220° C.) and high-pressure process (approximately 300 MPa to 560 MPa) exhibited enhanced mechanical strength and good esthetics suitable for use in CAD/CAM indirect restorations such as, inlays, onlays, crowns and bridges. 1. A method of making a polymerized composite block for use in dental restorations , comprising: i. 15 wt % to 25 wt % of at least one polymeric resin monomer comprising an acrylate or methacrylate group;', 'ii. 75 wt % to 85 wt % of at least one inorganic filler, based on the total weight of the composition; and', 'iii. a thermal polymerization initiator to initiate polymerization of the polymeric resin monomer;, 'a. providing a polymerizable resin composite that comprises'}b. placing the polymerizable resin composite in a mold for shaping into a block;c. polymerizing the polymerizable resin composite in the mold at a temperature in the range of 160° C. to 220° C. and a pressure in the range of 250 MPa to 560 MPa.2. The method of claim 1 , wherein the polymerizable resin comprises bisphenol A glycidyl methacrylate (BisGMA) claim 1 , ethoxylated bis phenol A dimethacrylate (EBPADMA) claim 1 , triethyleneglycol dimethacrylate (TEGDMA) claim 1 , 1 claim 1 ,6-hexanediol dimethacrylate (HDDMA) claim 1 , 1 claim 1 ,10-decanediol dimethacrylate (DMA) claim 1 , neopentyl glycol dimethacrylate (NPDMA) claim 1 , polyethylene glycol dimethacrylate claim 1 , urethane dimethacrylate (UDMA) claim 1 , trimethylolpropane trimethacrylate (TMPTMA) claim 1 , or polytetramethylene glycol dimethacrylate claim 1 , or a combination of two or more thereof.3. The method of claim 1 , wherein the polymerizable resin comprises EBPADMA having 2 to 6 units ...

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24-12-2020 дата публикации

BONDABLE MICROCAPSULES AND SURFACE FUNCTIONALIZED FILLERS

Номер: US20200397668A1
Принадлежит:

A composition comprising microcapsules functionalized with polymerizable functional groups on the surface of said microcapsules wherein the functional groups form covalent bonds with monomers in the continuous phase to enhance the mechanical properties of the composition. 1. A composition comprising a monomer , an initiator , and a nonbiodegradable microcapsule encapsulating an aqueous solution of a salt wherein said microcapsule has a surface functionalized with a polymerizable acrylate functional group capable of polymerizing with said monomer.2. The composition of wherein the aqueous solution of a salt contains ions selected from the group consisting of: fluoride claim 1 , calcium claim 1 , phosphate claim 1 , and combinations thereof.3. The composition of comprising a combination of salt ions wherein the combination of salt ions is achieved by using a plurality of microcapsules that contain either fluoride claim 1 , calcium claim 1 , or phosphate claim 1 , wherein each microcapsule contains only one of the fluoride claim 1 , calcium claim 1 , or phosphate ions.4. The composition of wherein the aqueous solution of a salt contains benzalkonium or cetylpyridinium ions.5. The composition of wherein the aqueous solution of a salt is specifically a combination of salts that result in a buffered solution.6. The composition of wherein the buffered solution contains a therapeutic agent.7. The composition of further comprising a photoinitiator.8. A composition comprising a polymeric continuous phase and a discontinuous phase wherein the continuous phase comprises a polymeric material and the discontinuous phase comprised a microcapsule encapsulating an aqueous solution claim 1 , wherein said microcapsule has a surface functionalized with a polymerizable acrylate functional group and is bonded to the polymeric continuous phase.9. The composition of wherein the aqueous solution is an aqueous solution of a salt that contains ions selected from the group consisting of: ...

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31-12-2020 дата публикации

Dental composition

Номер: US20200405585A1
Принадлежит: Dentsply Sirona Inc

The present invention relates to a dental composition comprising a radically polymerizable compound, a redox initiator system comprising one or more clathrate compounds comprising a host molecule and one or more guest molecules, wherein the host molecule is selected from cyclodextrines, crown ethers, cucurbituriles and calixarenes and the one or more guest molecules are reducing agents, and an oxidizing agent. Furthermore, the present invention relates to a use of the redox initiator system in a dental composition.

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20-03-2008 дата публикации

Dental materials with low polymerization shrinkage

Номер: DE102007035734A1
Принадлежит: IVOCLAR VIVADENT AG

Die vorliegende Erfindung betrifft Dentalmaterialien, enthaltend Calix[n]arene, sowie deren Verwendung für Zemente, Komposite, Adhäsive und Beschichtungsmaterialien im Dentalbereich. The present invention relates to dental materials containing calix [n] arenes and their use for cements, composites, adhesives and coating materials in the dental field.

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29-12-2005 дата публикации

Acrylate dental compositions with improved viscosity and storage odor

Номер: US20050288387A1
Автор: Byoung Suh, Li Feng
Принадлежит: Bisco Inc

Dental composition and methods of use are provided, the compositions comprising a multiacrylate compound, an initiator, and an alcohol, wherein no significant storage odor is detected after storage for a significant period of time.

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