By Filling, Bonding Or Cementing Patents (Class 433/226)
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Patent number: 8371854Abstract: A dental instrument with arms pivotally connected for scissors pivot action between closed and open positions is disclosed. A pair of tines extends from distal ends of the arms and at least one shaping surface on one of said tines is supported so that it is operable to shape an interior surface of one of two matrix bands positioned around adjacent teeth. In use, each tine is positioned inside of adjacent matrix bands positioned around adjacent teeth. As the arms are pivoted towards the closed position, the shaping surface is moved towards the tine on which it is not supported and a clamping force is applied by the tines causing the shaping surface to shape at least one of the matrix bands.Type: GrantFiled: January 11, 2011Date of Patent: February 12, 2013Inventor: Adnan Ahmed
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Patent number: 8367745Abstract: To provide a dual curing type composite resin for core build-up having improved curing property by chemical polymerization with improved mechanical strength of a cured body under the condition of no light irradiation and with a shortened setting time, the composite resin is composed of a first component including a (meth)acrylate polymerizable resin and an organic peroxide, and a second component including (meth)acrylate polymerizable resin and a reducing agent, a photopolymerizaton initiator and a filler are included in the first component and/or the second component, and oxide powder of a Group II element in the periodic table having an average particle diameter of 1 ?m or less is blended in the first component and/or the second component.Type: GrantFiled: March 28, 2008Date of Patent: February 5, 2013Assignee: GC CorporationInventors: Yugo Kosaka, Yutaka Shinozaki, Tomohiro Kumagai
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Publication number: 20130017510Abstract: A fabric ribbon for use in dental applications. The fabric ribbon includes a transverse set of fibers aligned generally transverse to a length of the ribbon; and a axial set of fibers, intertwined around the transverse set of fibers and aligned generally axially along the length of the ribbon, each of the axial set of fibers having a thickness greater than a thickness of each of the transverse set of fibers. The fabric ribbon may be used for a dental appliance, for example in a periodontal splint, a pontic beam, a composite restoration, or to bridge a crack in teeth.Type: ApplicationFiled: July 9, 2012Publication date: January 17, 2013Applicant: Ribbond, Inc.Inventor: David Rudo
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Publication number: 20120329006Abstract: Disclosed herein are a tissue management impression material and a method of application into the sulcus of a patient, whereby the tissue management impression material is a part of the final dental impression made when manufacturing a dental device, such as a crown.Type: ApplicationFiled: June 22, 2012Publication date: December 27, 2012Applicant: DENTSPLY INTERNATIONAL INCInventors: PAUL B. PIERSON, FUMING SUN, Richard J. BENNETT, ROBERT PIERONI
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Publication number: 20120322026Abstract: There are disclosed methods for the restoration of a decayed portion of a tooth, and dental matrices, dental wedges, interdental matrix stabilizers, dental separator rings, dental curing light devices, and kits that can be used in the methods for the restoration of a decayed portion of a tooth.Type: ApplicationFiled: August 31, 2012Publication date: December 20, 2012Inventor: David J. Clark
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Publication number: 20120315601Abstract: The invention is directed to methods for the preparation of a long-lasting dental restoration, a kit for the preparation of a long-lasting dental restoration comprising one or more containers containing: a first polymerizable compound; a second polymerizable compound; a curing agent for a first polymerization process; a curing agent for a second polymerization process; an inorganic filler; and a pigment; and optionally containing instructions for use thereof. The invention is further directed to a long-lasting dental restoration comprising: a polymeric matrix comprising at least two polymeric systems; an inorganic filler; and a pigment, wherein said long lasting dental restoration is formed by at least two curing processes of said polymeric systems, and to methods for the preparation of a dental restoration, wherein said dental restoration is either fully or partially structured chair-side or it is fully structured in a dental laboratory.Type: ApplicationFiled: February 22, 2011Publication date: December 13, 2012Applicant: CORONA DENT Ltd.Inventors: Ehud Shchori, Amir Barad
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Patent number: 8297975Abstract: A reaction-curable adhesive composition exhibiting acidity is formed form a weakly acidic to alkaline composition (I) comprising (a) a polymerizable monomer and (b) a compound represented by the following formula (I) and a strongly acidic composition (II) comprising (a) a polymerizable monomer. R1—C6H4—NR2CH2COOR3??(1) wherein R1 and R2 are each independently a hydrogen atom or an alkyl group which may have a functional group, and R3 is a hydrogen atom or a metal atom. The composition containing the polymerizable monomer can be stably stored for a long period of time.Type: GrantFiled: May 14, 2008Date of Patent: October 30, 2012Assignee: Sun Medical Co., Ltd.Inventors: Takashi Yamamoto, Toshiki Ono, Masami Arata, Tatsuya Ori
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Patent number: 8282396Abstract: A bone or dental implant material in the form of a paste includes a mixture of calcium phosphate and/or calcium-containing powders, liquid glycerol, organic acid and gelling agent. The paste is stable, resistant to washout and will harden upon exposure to water. Physical characteristics of the paste, including consistency, porosity, and hardening time, are controlled by the choice and ratio of constituents.Type: GrantFiled: May 3, 2010Date of Patent: October 9, 2012Assignee: ADA FoundationInventors: Laurence C. Chow, Shozo Takagi
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Publication number: 20120196251Abstract: A method of preparing a target hard body tissue, such as osseous or dental tissue, to receive an implant component including; positioning an active electrode in proximity to a target tissue and proximate an electrically conductive fluid, followed by applying a high frequency voltage between the active electrode and a return electrode, the high frequency voltage sufficient to form a plasma. This plasma modifies at least a portion of the target tissue. An implant component may then be placed adjacent at least a portion of the modified target tissue.Type: ApplicationFiled: February 2, 2011Publication date: August 2, 2012Inventors: Richard J. Taft, Danielle Seybold
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Patent number: 8197252Abstract: A packaged unit of composite for performing an aesthetic restoration. The unit is mounted on a polymeric film carrier material and is covered and sealed with the same or otherwise suitable covering film. The carrier film may be an elongated strip containing serially placed units of composite, each readily separable from the strip for individual usage. This packaging is in light restrictive outer packaging since the preferred unit of composite is of a light-cured material such as bis-GMA. In preferred packaging, the unit dose is singular and applicable to the tooth surface with the film carrier which is adapted with tabs to facilitate handling and the draping or damming of the subject tooth from adjacent teeth to facilitate application of the composite. The composite is then worked, i.e., formed on the tooth with the film intermediate the composite and the customary forming tools.Type: GrantFiled: August 26, 2009Date of Patent: June 12, 2012Inventor: Louie V. Harrison, III
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Publication number: 20120129125Abstract: A dental matrix band device may be applied in a single step without the need for additional instruments for its application. The matrix band device may include a conventional matrix band, such as a Tofflemier™ band and a wire attached to the band. The band may be used to separate adjacent teeth, while the wire keeps the band in place until the procedure is completed. At the completion of the procedure, the band and wire are easily removed from the patient.Type: ApplicationFiled: November 24, 2010Publication date: May 24, 2012Inventor: Essam N. IBRAHIM
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Patent number: 8142194Abstract: Embodiments described herein are related to fillers that are placed within an extraction site in need of bone augmentation and preservation. The fillers encourage sufficient new bone growth in order that normal jaw bone deterioration following tooth removal is prevented. The fillers create, arrange, and assemble an ideal growth environment for new bone growth to rapidly grow and preserve the original contours of an individual's jaw bone. Further embodiments described herein are related to dental implants that are arranged to provide a scaffold upon which a damaged or missing dental papilla may regrow. The dental implants may include a micro-pattern to facilitate directional cell growth.Type: GrantFiled: November 16, 2009Date of Patent: March 27, 2012Assignee: Innovative Health Technologies, LLCInventor: Darnell Kaigler, Sr.
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Publication number: 20120064478Abstract: In a first aspect, the invention is directed to an accessory for use by a dental professional. The accessory includes a mirror and a connector. The connector has a connector body having a first end and a second end. The connector includes an eyewear mount at the first end and a mirror mount at the second end. The eyewear mount is configured to mount to eyewear. The connector is adjustable to position and hold the mirror in a plurality of orientations in which the mirror faces generally forwardly of the dental professional.Type: ApplicationFiled: September 14, 2011Publication date: March 15, 2012Inventor: Nicole Coriat
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Publication number: 20120058453Abstract: Example embodiments of the present invention include hot melt dental adhesive materials that can create a reversible bond. In addition, example embodiments of the present invention include hot melt dental impression materials that can be used to accurately and efficiently obtain a dental impression. Moreover, example embodiments of the invention include devices and methods for use with the hot melt dental adhesive materials and the hot melt dental impression materials disclosed herein. The hot melt dental adhesive materials and the hot melt dental impression materials can provide dental professionals with dental materials that are more effective, efficient, and easier to use when compared to conventional dental adhesive materials and conventional dental impression materials.Type: ApplicationFiled: March 4, 2011Publication date: March 8, 2012Applicant: CAO GROUP, INC.Inventor: Steven D. Jensen
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Patent number: 8129444Abstract: The invention relates to a composition which is self-adhesive to the hard tooth tissue, comprising: (A) 5 to 75 percent by weight of one or more mono or higher functional ethylenically unsaturated compounds which additionally have an acid functional group, wherein one of said compounds has a P—OH group, for instance a phosphoric, phosphonic or phosphinic acid group; (B) 2 to 50 percent by weight of one or more mono or higher functional ethylenically unsaturated compounds without any acid functional group; (C) 22.8 to 85 percent by weight of filling material(s), comprising at least one filling material that may react with component (A) in the sense of causing a ion exchange, neutralization, salt formation and/or chelate formation reaction; (D) 0.1 to 8 percent by weight of one or more initiators and optionally activators; (E) 0.1 to 20 percent by weight of further additives, for example, modifiers, wherein the weight ration in % of component (A) relative to component (B) ranges from 21 to 90: 10 to 79.Type: GrantFiled: September 6, 2005Date of Patent: March 6, 2012Assignee: 3M ESPE AGInventors: Reinhold Hecht, Manfred Ludsteck, Thomas Luchterhandt, Markus Mikulla
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Publication number: 20120052022Abstract: The present invention provides compositions and related methods for oral health treatment of a subject. Compositions of the invention include an anti-oxidant enzyme, an anti-inflammatory agent, and a pharmaceutically acceptable buffer. In certain embodiments, the compositions are administered to the subjection in conjunction with teeth whitening, oral surgery, oral pathology treatment, endodontic therapy, periodontal therapy, dental restoration, preventative tooth cleaning, or subsequent to a pro-oxidant.Type: ApplicationFiled: April 29, 2011Publication date: March 1, 2012Inventor: Rebecca Dayanim
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Publication number: 20120034572Abstract: A coated medical implant, such as a coated dental component, is provided, the coated medical implant including a substrate surface formed of a material comprising available hydroxyl groups and a silicon oxide coating layer chemisorbed on the substrate surface. A method for the preparation of such coated implants is also provided, the method involving application of the silicon oxide coating layer to the substrate surface by chemical vapor deposition. A dental structure is also provided, which includes a first dental component having a substrate surface formed of a material comprising available hydroxyl groups; a silicon oxide coating layer chemisorbed on the substrate surface; a silane coupling agent overlying and covalently attached to the silicon oxide layer; a dental cement overlying and coupled to the silane coupling agent; and a second dental component having a surface bonded to the dental cement.Type: ApplicationFiled: October 14, 2011Publication date: February 9, 2012Inventors: Jeffrey Robert Piascik, Jeffrey Yates Thompson, Sonia Grego, Brian R. Stoner
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Publication number: 20120028210Abstract: A method for dental restoration that includes disposing a flowable and curable tooth restoration composition into an open cavity of a stent that defines contours of a final design model of a patient's teeth and includes an interproximal contact that has been thinned along an interproximal contact zone but not separated, seating the stent on the patient's teeth such that the flowable and curable tooth restoration composition fills a space between at least one tooth to be restored and the stent, initiating curing of the flowable and curable tooth restoration composition in the stent such that the composition bonds to the at least one tooth to be restored and forms at least one restored tooth and removing the stent from the patient's teeth to expose the at least one restored tooth.Type: ApplicationFiled: October 11, 2011Publication date: February 2, 2012Applicant: TURN KEY DENTAL ACADEMY, INC.Inventors: Karl Edison Hegyi, Arpad Ferenc Csapo
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Patent number: 8105086Abstract: The embodiments herein provide a dental and medical biomaterial and its use for sealing and/or filling the tooth and bone cavities. In the embodiments herein, the calcium salt, calcium oxide, calcium silicate, and calcium phosphate compounds are mixed with a water-base solution, and a bioactive phosphate and calcium enriched mixture is prepared. The mixture comprises high concentration of water-soluble calcium and phosphate, and consequently forms hydroxyapatite during and after setting. The dental/medical biomaterial is biocompatible, antibacterial and capable of forming an effective seal against reentrance of microorganisms into the filled cavity. The biomaterial is compatible to handle and set in an aqueous environment and to stimulate soft/hard tissue healing/generation/regeneration.Type: GrantFiled: April 1, 2011Date of Patent: January 31, 2012Inventor: Saeed Asgary
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Patent number: 8088838Abstract: The present invention discloses a cone material in endodontic treatment. The cone material comprises a thermoplastic polyurethane and a filler. The thermoplastic polyurethane is formed by a. isophorone diisocyanate (IPDI) or hexamethylene diisocyanate (HDI), b. poly(butyleneadipate) glycol (PBA) and c. chain extender, wherein the molar ratio of PBA and the diisocyanate is equal to or more than 0.8. By changing the molar composition of the components such as polyol and diisocyanate, physical and chemical property of the disclosed cone material in endodontic treatment can be adjusted.Type: GrantFiled: February 26, 2009Date of Patent: January 3, 2012Assignee: National Taiwan UniversityInventors: Kuo-Huang Hsieh, Chun-Pin Lin, Ken-Hsuan Liao, Chung-Yi Lee, Ching-Ting Tsao
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Publication number: 20110306007Abstract: A dental instrument, suitable for use when creating a dental filling is provided. The dental instrument comprises a wedge and a matrix. The matrix is fixedly attached to the wedge, and the wedge is adapted to be inserted into the approximal space between two teeth of a patient. The wedge comprises a bow shape along a length axis of the wedge, the matrix comprises a first bow shape along a length axis of the matrix, and the matrix comprises a second bow shape along an axis perpendicular to the length axis of the matrix. A method of using the dental instrument and a disposable system, which further comprises a protective member, is further provided.Type: ApplicationFiled: January 20, 2010Publication date: December 15, 2011Applicant: Directa ABInventors: Dan Ericson, Jan Johansson, Orjan Arkang, Stefan Leffler, Olof Larsson
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Publication number: 20110300505Abstract: A dental curing light includes a device body that efficiently conducts heat away from the light emitting diode portion of the curing light. The device body includes a proximal gripping end and a distal head end. The device body is formed from a thermally conductive body material. Excellent heat conduction away from the LED dies is achieved using a thermally conductive layer disposed over the device body. The thermally conductive layer serves as a conduit to quickly conduct heat away from the LED dies for dissipation within the material of the device body In this manner, the material of the device body serves as a highly efficient heat dissipater. The surface area coupling the thermally conductive layer to the device body is sufficiently large that a majority (e g, substantially all) of heat being conducted by the thermally conductive layer is transferred to the device body during operation of the device.Type: ApplicationFiled: December 29, 2009Publication date: December 8, 2011Applicant: Ultradent Products, Inc.Inventors: Dee Jessop, Jared Sheetz, Neil Jessop
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Patent number: 8071131Abstract: Compositions and methods useful in restorative dentistry are disclosed. Compositions of the present invention include a peptide, and a polymer matrix. The peptide is one capable of reacting with a source of mineralizing ions to initiate deposition of hydroxyapatite crystals within the polymer matrix. Compositions of the present invention are uniquely capable of sealing a junction between a dental restorative material and adjacent native tooth tissue.Type: GrantFiled: July 11, 2005Date of Patent: December 6, 2011Assignee: Ivoclar Vivadent, Inc.Inventor: Bruce Rutherford
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Patent number: 8043093Abstract: To provide a dental root canal-filling composition which is generally formed in a point shape, has high strength, is properly deformed so as to afford easy operativity for filling in a root canal, has improved wetting and adhering properties with a root canal-filling sealer and is less deteriored by sterilization or chemical disinfection, the dental root canal-filling composition comprises one or more kinds of polyolefin resins selected from the group of polyethylene, polypropylene, and a copolymer of polyethylene and polypropylene, a styrene block copolymer, one or more kinds of thermoplastic resins selected from the group of ester gum, rosin, an alicyclic saturated hydrocarbon resin, a terpene resin, and an aliphatic petroleum resin, and one or more kinds of inorganic fillers selected from the group of zinc oxide, barium sulfate, zirconium oxide, titanium oxide, ytterbium fluoride, a barium glass, and an aluminosilicate glass.Type: GrantFiled: September 16, 2009Date of Patent: October 25, 2011Assignee: GC CorporationInventors: Yutaka Shinozaki, Hiroshi Kamohara
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Patent number: 8008367Abstract: Composite material with a polymerisable organic binder, characterised in that it contains a filler with filler particles which have the shape of a torus.Type: GrantFiled: May 22, 2003Date of Patent: August 30, 2011Assignee: VOCO GmbHInventors: Reinhard Maletz, Stefan Kruschel, Manfred Thomas Plaumann
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Patent number: 8002545Abstract: An instrument to compressively place and bond a restorative covering to the surface of a tooth including a gripping body (4) with a gently tapered mildly angled neck (6) having an applicator holder (8) with an attached compressible applicator with traversing photo cure apertures (12) to permit the passage of a photo curing light.Type: GrantFiled: July 28, 2008Date of Patent: August 23, 2011Inventor: Brian D. Viscomi
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Patent number: 8002546Abstract: A veneer applicator to compressively place and photo cure a restorative covering to a tooth to include a photo transmissible insert (2) having a compressible applicator (4) with at least one traversing aperture (6) and a photo transmissible insert shaft (14) to dock with an LED device (22). Docking the insert shaft (14) with the LED device (22) permits a photo curing spectrum to traverse the shaft (14) and compressible applicator (4) at least one aperture (6). This allows for direct surface bonding during veneer application.Type: GrantFiled: December 9, 2008Date of Patent: August 23, 2011Inventor: Brian D. Viscomi
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Publication number: 20110200973Abstract: Various embodiments of the present invention generally relate to a light-cure and dual-cure resin that have low color and is color stable over conventional light, self and dual-cured resins. Additionally, the light-cure resin has enhanced degree of cure over conventional light-cure resins. Finally, due to the low color and enhanced color stability of the dual-cure resins, their inherent property of having lower shrinkage stress as compared to light-cure resins can now be utilized in various dental applications and other resin applications.Type: ApplicationFiled: November 28, 2008Publication date: August 18, 2011Inventors: H. Ralph Rawls, Kyumin Whang, Nasser Barghi, Dong-Hoon Shin, Richard Plymale
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Publication number: 20110189629Abstract: The dental matrix band includes an elongated body having first and second opposing ends adapted to wrap around a tooth to be restored, and having first and second opposing longitudinal edges extending between the first and second opposing ends. The dental matrix band further includes a first line of weakness in the elongated body where the elongated body is separable along the first line of weakness. The dental matrix includes a fixture adjacent the first line of weakness. The dental matrix band may further include a second line of weakness. The dental matrix band may include an annealed section.Type: ApplicationFiled: February 1, 2011Publication date: August 4, 2011Applicant: KERRHAWE SAInventors: Beat Kilcher, Marco Da Rold
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Publication number: 20110171597Abstract: A dental instrument with arms pivotally connected for scissors pivot action between closed and open positions is disclosed. A pair of tines extends from distal ends of the arms and at least one shaping surface on one of said tines is supported so that it is operable to shape an interior surface of one of two matrix bands positioned around adjacent teeth. In use, each tine is positioned inside of adjacent matrix bands positioned around adjacent teeth. As the arms are pivoted towards the closed position, the shaping surface is moved towards the tine on which it is not supported and a clamping force is applied by the tines causing the shaping surface to shape at least one of the matrix bands.Type: ApplicationFiled: January 11, 2011Publication date: July 14, 2011Inventor: Adnan Ahmed
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Publication number: 20110143305Abstract: A medical or dental treatment device for dispensing a medium having a base part with a power supply unit and an electrical or electronic control device and at least one delivery part that can be connected detachably to the base part via a coupling device and which has a sound source, such as an ultrasound source, and a delivery device for dispensing the medium from the delivery part. In addition, at least one active part, which can be connected detachably to the base part via the coupling device, may also be provided.Type: ApplicationFiled: November 29, 2010Publication date: June 16, 2011Inventors: Hannes Wagner, Walter Schuh
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Publication number: 20110143303Abstract: A vibrating applicator is provided for applying a dental composite material onto a tooth. The applicator has an elongated body and a tip that is coupled to the elongated body to apply the dental composite material onto the tooth. The applicator further has a vibrating apparatus for vibrating the tip and a sensor for sensing a condition of the dental composite material. A controller is operatively coupled to the vibrating apparatus and to the sensor and is configured to automatically vary an output frequency of the vibrating apparatus in response to the condition sensed by the sensor.Type: ApplicationFiled: December 10, 2009Publication date: June 16, 2011Applicant: KERRHAWE SAInventors: Beat Kilcher, Marco Da Rold
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Patent number: 7939580Abstract: The present invention relates to dental compositions comprising a halogenated epoxy functional ether derivative comprising at least one aryl alkyl ether moiety, at least one halogen atom attached to each aryl residue of the aryl alkyl ether moieties, at least two aliphatic epoxy moieties, no glycidyl ether structure, an initiator, optionally filler and optionally additive components selected from the group of modifiers, dyes, pigments, thixotropic agents, flow improvers, polymeric thickeners, surfactants, odorous substances, diluting agent(s) and flavorings.Type: GrantFiled: July 14, 2004Date of Patent: May 10, 2011Assignee: 3M Innovative Properties CompanyInventors: Adrian S. Eckert, Peter Bissinger, Karsten Dede, Thomas Klettke, Christoph Thalacker, Dwight W. Jacobs, Roger A. Mader
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Patent number: 7892342Abstract: A white, substantially non-iron containing dental material formed from Portland cement. The material may be a dental cement, dental restorative or the like.Type: GrantFiled: August 27, 2009Date of Patent: February 22, 2011Assignee: DENTSPLY International, Inc.Inventor: Carolyn M. Primus
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Patent number: 7879924Abstract: The present invention provides a dental resin cement which is excellent in a mechanical strength, workability and storage stability, and a dental primer which significantly improves adhesiveness of the dental resin cement both to enamel and dentin of a tooth. According to the present invention, a salt of barbituric acid is used as a polymerization initiator in the dual-cure two-paste type dental resin cement being excellent in workability and storage stability to improve the storage stability, and a primer containing barbituric acid and amine is applied to a surface of a tooth to significantly improve adhesiveness of the dental resin cement both to enamel and dentin of teeth.Type: GrantFiled: February 3, 2006Date of Patent: February 1, 2011Assignee: Kabushiki Kaisha ShofuInventors: Keisuke Torii, Hisaki Tanaka, Toshihide Fujii, Yoshiaki Kohro, Mikito Deguti
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Patent number: 7855242Abstract: A curable restorative composition is disclosed, comprising a polymerizable mono(meth)acrylate resin having a vapor pressure of 1 mm Hg or less at 20° C., a plasticizer; and a curing system for the mono(meth)acrylate resin. The composition is particularly useful for making temporary restorations. Methods of used and kits comprising the composition are also disclosed.Type: GrantFiled: September 1, 2006Date of Patent: December 21, 2010Assignee: Pentron Clinical Technologies LLCInventors: Weitao Jia, Shuhua Jin
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Publication number: 20100305626Abstract: Described herein is the synthesis of adhesive complex coacervates. The adhesive complex coacervates are composed of a mixture of one or more polycations, one or more poly anions, and one of more multivalent cations. The polycations and polyanions in the adhesive complex coacervate are crosslinked with one another by covalent bonds upon curing. The adhesive complex coacervates have several desirable features when compared to conventional bioadhesives, which are effective in water-based applications. The adhesive complex coacervates described herein exhibit good interfacial tension in water when applied to a substrate (i.e., they spread over the interface rather than being beaded up). Additionally, the ability of the complex coacervate to crosslink intermolecularly increases the cohesive strength of the adhesive complex coacervate. The adhesive complex coacervates have numerous biological applications as bioadhesives and drug delivery devices.Type: ApplicationFiled: November 13, 2008Publication date: December 2, 2010Applicant: UNIVERSITY OF UTAH RESEARCH FOUNDATIONInventors: Russell John Stewart, Hui Shao
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Patent number: 7838573Abstract: Improved compositions comprising a mixture of gutta-percha and a hydraulic material containing calcium silicate, calcium aluminate, calcium phosphate, and calcium sulfate compounds are provided. Preferably, the composition includes hydroxylapatite mineral. The composition is particularly suitable for obturating and sealing dental root canals. The composition should provide a stable barrier to bacterial and fluid leakage in the root canal system of a tooth. In addition, the composition should help promote the growth of new bone and tissue surrounding the root tip area.Type: GrantFiled: June 27, 2007Date of Patent: November 23, 2010Assignee: DENTSPLY International, Inc.Inventors: Carolyn M. Primus, James L. Gutmann
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Patent number: 7835558Abstract: A model of the dental restoration is shaped in-vivo on the patient by the dentist. The model is then scanned in the dentists office using a 3D optical scanner. A 3D graphic representation of the model is obtained from the scanner using a computer. The computer is used to convert the 3D graphic representation of the model into a milling path for milling the dental restoration in a block of durable dental restoration material having known dimensions. A mill, also present in the dentists office, mills the dental restoration from the block using the milling path while the patient is waiting. The dentist can then take the milled dental restoration and apply it to the patient in the same, single visit.Type: GrantFiled: April 3, 2007Date of Patent: November 16, 2010Assignee: Tekno Replik Inc.Inventors: Jean Gagnon, Christian Saindon
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Publication number: 20100285429Abstract: A dental mill blank is formed from a number of different self-supporting, malleable, curable (SMC) materials distributed within the blank so that a dental article machined from the blank closely resembles natural dentition in appearance or function. When in an uncured state, a single mill blank can be adapted to fit a variety of different tooth sizes and shapes, thus reducing the inventory of mill blank types required for fabrication of the range of possible tooth shapes and sizes.Type: ApplicationFiled: November 18, 2008Publication date: November 11, 2010Inventors: Naimul Karim, Sumita B. Mitra
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Patent number: 7819663Abstract: A preparation contains an aqueous liquid part, a solid part comprising at least one silicate selected from tricalcium silicate Ca2SiO5 and dicalcium silicate Ca2SiO4; and calcium chloride CaCl2 and a water reducing agent which are both contained in at least one of the aforementioned parts. According to the invention, the solid part and the liquid part are intended to be mixed in order to obtain the material. The preparation can be used to restore a mineralized substance, particularly in the dental field.Type: GrantFiled: August 13, 2003Date of Patent: October 26, 2010Assignee: Septodont Ou Specialties Sertodont S.A.Inventors: Badreddine Bergaya, Jean-Yves Bottero, Marie-Josee Bottero, Jean-Claude Franquin, Dominique LeBlanc, Olivier Marie, Andre Nonat, Cyrille Sauvaget
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Patent number: 7815434Abstract: The invention provides a dental coating kit with high adhesiveness to teeth that contains a primer composition including an acidic group-containing polymeric monomer (a), water (b) and a water-soluble solvent (c) and a surface smoothing composition including a polyfunctional polymeric monomer (f), a volatile solvent (g) and a photopolymerization initiator (h); and a dental coating kit with high adhesiveness to teeth and minimally suffering from chipping and peeling off that contains a primer composition including an acidic group-containing polymeric monomer (a), water (b) and a water-soluble solvent (c), a coating composition including a polymeric monomer (d) and a photopolymerization initiator (e), and a surface smoothing composition including a polyfunctional polymeric monomer (f), a volatile solvent (g) and a photopolymerization initiator (h). Either dental coating kit is particularly useful as a kit for preventing stain and color return of a bleached tooth.Type: GrantFiled: October 6, 2003Date of Patent: October 19, 2010Assignee: Kuraray Medical Inc.Inventors: Mitsuru Takei, Junichi Ohtsuki
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Publication number: 20100203467Abstract: The present invention relates to a tooth coating applicator (10), typically in the form of a strip (11), and a method for applying a dental sealant to a surface of a tooth (T), and specifically to the interproximal surface (S) thereof. The applicator (10) is elongated and is adapted to be typically inserted into an interproximal space (I) defined between a pair of adjacent teeth (T, T?) and to be gradually slid against a dental surface of one of the teeth.Type: ApplicationFiled: April 17, 2009Publication date: August 12, 2010Applicant: DENTSPLY CANADA LTD.Inventor: Naim Karazivan
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Publication number: 20100062399Abstract: The invention features a dispenser tip filter assembly for dispensing fluid compositions, especially dental compositions, containing solid particles. The assembly includes a dispenser tip comprising a filter housing chamber and an exit orifice, and a filter unit positioned within the filter housing chamber in front of the exit orifice. The filter unit has one or more slots with a width less than the diameter of the exit orifice.Type: ApplicationFiled: April 21, 2008Publication date: March 11, 2010Inventor: Adam J. Cernohous
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Publication number: 20100062394Abstract: A dental article includes an external layer formed of a self-supporting hardenable preformed material having a dental article shape defined by an external layer surface. The external layer defines an interior volume. An interior material is disposed within the interior volume. The interior material is different than the external hardenable preformed material and the interior material has a yield stress value of 100 dyn/cm2 or greater.Type: ApplicationFiled: September 12, 2007Publication date: March 11, 2010Inventors: Todd D. Jones, Naimul Karim, Dwight W. Jacobs
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Patent number: 7662869Abstract: The invention relates to a dental composition comprising a) carbosilane containing component (A) comprising at least 1 Si-Aryl bond, at least 1 silicon atom, at least 2 unsaturated moiety, no Si—Oxygen bond, b) Si—H functional component (B), c) initiator (C), d) optionally filler (D), and e) optionally component (E) selected from modifiers, dyes, pigments, thixotropic agents, flow improvers, polymeric thickeners, surfactants, odorous substances, diluting agent(s) and flavorings.Type: GrantFiled: July 14, 2004Date of Patent: February 16, 2010Assignee: 3M Innovative Properties CompanyInventors: Peter Bissinger, Adrian S. Eckert, Reinhold Hecht, Uwe H. Hoheisel
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Publication number: 20100015569Abstract: A method, a device and a kit for the positioning of a small object, such as a dental restoration, in a specific desired location is disclosed. Conventional techniques to secure dental restorations have depended upon various rod-like handles tipped with sticky wax or nectar-like bulbs. These techniques are generally limited in their effectiveness due to their weak and unpredictable bond. The present placement device includes a handle portion (12) and a head portion (14) comprising bristles (16). The present method includes the steps of placing a glue pellet (18) on the exterior surface of the object, applying heat to the pellet to melt it, positioning a head portion (14) of a restoration placement device having bristles (16) in the melted glue to receive the object on the end portion of the device, placing the object in its desired location and removing the restoration placement device from the object.Type: ApplicationFiled: June 27, 2007Publication date: January 21, 2010Inventor: Jonathan MaCarthur
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Publication number: 20100015576Abstract: A method of modifying or treating biological tissue by microperforating hard tissue is disclosed. The method comprises identifying a target area associated with the hard tissue, using a laser beam to perforate at least one incision in the hard tissue, wherein at least one incision has a diameter from a range of 0.001 mm to 0.5 mm and an aspect ratio from a range of 1 to 100 times, introducing a treatment substance into the incision, and causing the treatment substance to interact with the target area. Also a device for microperforating hard biological tissue is disclosed, comprising a laser pump system and a laser head coupled to the laser pump system for generating a pulsed laser having ranges of wavelengths, a pulse duration, pulse energy from a selected range, a beam divergence factor less than 5, a repetition rate higher than 50 Hz; and a beam delivery system comprised of a focusing system for creating a beam having a diameter from a range of 0.001 mm to 0.5 mm.Type: ApplicationFiled: July 16, 2009Publication date: January 21, 2010Applicant: RejuveDent LLCInventors: GREGORY B. ALTSHULER, ANDREY V. BELIKOV, FELIX I. FELDCHTEIN, VALERY V. TUCHIN, ALEXANDER G. VYBORNOV
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Publication number: 20100015577Abstract: An indirect bonding apparatus for orthodontic bonding procedures includes a tray having inner wall sections defining a channel for receiving the patient's dental arch. A number of orthodontic appliances are detachably connected to the tray along the channel, and each appliance includes a base for bonding the appliance to the tooth. The wall sections include at least one groove extending along the base of at least one appliance in order to provide a space between the wall sections and the patient's tooth structure when the tray is received on the patient's dental arch. The space hinders the flow of oral fluids such as saliva in directions toward the base in order to help ensure that the fluids do not adversely affect the strength of the resulting adhesive bond between the appliance and the tooth.Type: ApplicationFiled: September 24, 2009Publication date: January 21, 2010Inventors: David K. Cinader, JR., James D. Cleary
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Patent number: 7632098Abstract: The present invention is directed to dental compositions that can be used as adhesives for bonding a dental material to a dental structure surface and/or as a dental restorative material. The dental composition is preferably applied to a dental structure surface under conditions effective to etch the dental structure surface.Type: GrantFiled: August 11, 2004Date of Patent: December 15, 2009Assignee: 3M Innovative Properties CompanyInventors: Afshin Falsafi, Steven M. Aasen, Ahmed S. Abuelyaman, David K. Cinader, Bradley D. Craig, Reinhold Hecht, Thomas Luchterhandt, Sumita B. Mitra, Joel D. Oxman, Prabhakara S. Rao, Brian A. Shukla, Markus Watermann