Patents Assigned to Ivoclar Vivadent, Inc.
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Patent number: 10653585Abstract: A palladium-based alloy having a coefficient of thermal expansion (CTE) of about 12.0 to about 13.0 and having one or more of the following additive metals: platinum, gallium, chromium, molybdenum, tin, silicon, ruthenium, rhenium, indium, tungsten, niobium, boron and lithium.Type: GrantFiled: September 20, 2018Date of Patent: May 19, 2020Assignee: Ivoclar Vivadent, Inc.Inventors: Tridib Dasgupta, George Tysowsky
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Patent number: 10610460Abstract: Zirconia dental ceramics exhibiting opalescence and having a grain size in the range of 10 nm to 300 nm, a density of at least 99.5% of theoretical density, a visible light transmittance at or higher than 45% at 560 nm, and a strength of at least 800 MPa.Type: GrantFiled: January 10, 2018Date of Patent: April 7, 2020Assignee: Ivoclar Vivadent, Inc.Inventors: Dmitri Brodkin, Yijun Wang, Ling Tang, Ajmal Khan, Anna B. Verano
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Patent number: 10123858Abstract: A palladium-based alloy having a coefficient of thermal expansion (CTE) of about 12.0 to about 13.0 and having one or more of the following additive metals: platinum, gallium, molybdenum, tin, silicon, ruthenium, rhenium, indium, tungsten, niobium, boron and lithium.Type: GrantFiled: March 8, 2013Date of Patent: November 13, 2018Assignee: Ivoclar Vivadent, Inc.Inventors: Tridib Dasgupta, George Tysowsky
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Patent number: 10004668Abstract: Zirconia dental ceramics exhibiting opalescence and having a grain size in the range of 10 nm to 300 nm, a density of at least 99.5% of theoretical density, a visible light transmittance at or higher than 45% at 560 nm, and a strength of at least 800 MPa.Type: GrantFiled: June 12, 2014Date of Patent: June 26, 2018Assignee: Ivoclar Vivadent, Inc.Inventors: Dmitri G. Brodkin, Yijun Wang, Ling Tang, Ajmal Khan, Anna B. Verano
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Publication number: 20150100280Abstract: Methods and systems are disclosed for automatically generating a customized digital design of a dental restoration. The customized digital designs are generated using a set of design parameters that are specific to the dental lab ordering the restoration. As such, the resulting dental restorations require less modification by the lab and accommodate the preferences of the ordering lab.Type: ApplicationFiled: October 8, 2013Publication date: April 9, 2015Applicant: Ivoclar Vivadent, Inc.Inventor: Mircea D. Jula
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Patent number: 8821163Abstract: Colorless dental compositions for restoring the enamel layer of a tooth are disclosed. The colorless enamel compositions are combined with pigmented dentin compositions to provide a true color match and natural esthetics. Methods that utilize the compositions in placement/build-up techniques in direct restorations are also disclosed.Type: GrantFiled: August 3, 2010Date of Patent: September 2, 2014Assignee: Ivoclar Vivadent, Inc.Inventor: Terry Lee Culp
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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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Publication number: 20110275033Abstract: A nonmagnetic alloy is provided based on a palladium-cobalt binary system with the addition of gold, has a coefficient of thermal expansion (CTE) of about 13.8 to about 15 and may include one or more of the following additive metals: aluminum, boron, chromium, gallium, lithium, rhenium, ruthenium, silicon, tantalum, titanium, and tungsten.Type: ApplicationFiled: July 12, 2011Publication date: November 10, 2011Applicant: IVOCLAR VIVADENT, INC.Inventors: Tridib Dasgupta, George Tysowsky
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Patent number: 7943068Abstract: Blocks of material are prepared in a variety of shapes and sizes to be used in the fabrication of models for dental restorations. The material comprises a partially sintered ceramic material. The blocks are used to manufacture molds using CAD/CAM methods and equipment. The molds are useful in the manufacture of dental restorations using ceramics, metals, alloys, or powders thereof, and composite materials. The models milled from the blanks may be used to manufacture a variety of dental restorations including, but not limited to, crowns, bridges, space maintainers, tooth replacement appliances, orthodontic retainers, dentures, posts, jackets, inlays, onlays, facings, veneers, facets, implants, abutments, splints, partial crowns, teeth, cylinders, pins, and connectors.Type: GrantFiled: November 13, 2006Date of Patent: May 17, 2011Assignee: Ivoclar Vivadent, Inc.Inventor: Carlino Panzera
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Publication number: 20100297586Abstract: Colorless dental compositions for restoring the enamel layer of a tooth are disclosed. The colorless enamel compositions are combined with pigmented dentin compositions to provide a true color match and natural esthetics. Methods that utilize the compositions in placement/build-up techniques in direct restorations are also disclosed.Type: ApplicationFiled: August 3, 2010Publication date: November 25, 2010Applicant: IVOCLAR VIVADENT INC.Inventor: Terry Lee Culp
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Patent number: 7790073Abstract: Colorless dental compositions for restoring the enamel layer of a tooth are disclosed. The colorless enamel compositions are combined with pigmented dentin compositions to provide a true color match and natural esthetics. Methods that utilize the compositions in placement/build-up techniques in direct restorations are also disclosed.Type: GrantFiled: June 12, 2008Date of Patent: September 7, 2010Assignee: Ivoclar Vivadent Inc.Inventor: Terry Lee Culp
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Patent number: 7691497Abstract: A pressable body is described possessing a flexural strength of at least 125 MPa and is flowable at about 850° C. to about 950° C. The body is composed of at least a glass matrix phase having a composition comprising Li2O and MgO. A dental article formed at least in part from the pressable body is also described. Associated methods are also described.Type: GrantFiled: April 13, 2007Date of Patent: April 6, 2010Assignee: Ivoclar Vivadent, Inc.Inventors: Dmitri G. Brodkin, Anna B. Verano
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Publication number: 20080245268Abstract: Colorless dental compositions for restoring the enamel layer of a tooth are disclosed. The colorless enamel compositions are combined with pigmented dentin compositions to provide a true color match and natural esthetics. Methods that utilize the compositions in placement/build-up techniques in direct restorations are also disclosed.Type: ApplicationFiled: June 12, 2008Publication date: October 9, 2008Applicant: IVOCLAR VIVADENT, INC.Inventor: Terry Lee Culp
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Publication number: 20080070192Abstract: An alloy s provided for dental prostheses including porcelain fused to metal (PFM) restorations. The alloy is grey in color with an oxide coating for bonding porcelain to the oxidized cast alloy substrate. The alloy has suitable mechanical properties for cast prostheses and for the support of the porcelain and is readily polished to a bright sheen. The alloy is based on a palladium-cobalt binary system, has a coefficient of thermal expansion (CTE) in the range of about 14.0 to 15.3 and may include one or more of the following additive metals: aluminum, boron, chromium, gallium, lithium, rhenium, ruthenium, silicon, tantalum, titanium, and tungsten.Type: ApplicationFiled: October 6, 2006Publication date: March 20, 2008Applicant: Ivoclar Vivadent, Inc.Inventors: Tridib Dasgupta, Clyde Ingersoll, George Tysowsky
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Publication number: 20080070058Abstract: An alloy is provided based on a palladium-cobalt binary system, has a coefficient of thermal expansion (CTE) of about 14.0 to about 15.5 and may include one or more of the following additive metals: aluminum, boron, chromium, gallium, lithium, rhenium, ruthenium, silicon, tantalum, titanium, and tungsten.Type: ApplicationFiled: August 28, 2007Publication date: March 20, 2008Applicant: Ivoclar Vivadent, Inc.Inventors: Tridib Dasgupta, Clyde Ingersoll, George Tysowsky
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Patent number: 6913656Abstract: An alloy is provided for dental porcelain fused to metal restorations, having a rich gold color and light oxide coating for bonding the porcelain to the cast alloy substrate. The alloy has suitable mechanical properties for the support of the porcelain and is readily polished to a bright sheen. The alloy includes from 96 to 98 weight % Au with up to 3 weight % Pt, Pd, Ru, Ir, or combinations thereof and 0 to 1.5 wt % In, Sn, Fe, Mn, Cu, B, or combinations thereof.Type: GrantFiled: August 11, 2003Date of Patent: July 5, 2005Assignee: Ivoclar Vivadent, Inc.Inventors: Dasgupta Tridib, Clyde Ingersoll
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Patent number: 6821116Abstract: The invention relates to a system and method for scanning a plurality of teeth and gums in a patient's mouth. The system includes a mouthpiece, a camera that fits in the mouthpiece, and an electronic storage medium. The camera can move in an arc within the mouthpiece to preferably scan the entire mouth of the patient and is preferably connected to or includes a CD, DVD, a computer hard drive, or electronic diskette to save the image for later use. The image can then be compared to a patient's prior image or compared to a dental standard to determine the patient's dental health and cosmetic characteristics.Type: GrantFiled: September 12, 2001Date of Patent: November 23, 2004Assignee: Ivoclar Vivadent, Inc.Inventor: Gary L. Severance
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Publication number: 20040137407Abstract: Sets of posterior teeth which may be used for the production of dentures; the sets including a first set of posterior teeth which provide for lingualized occlusion, and a second set of posterior teeth which provide zero degree monoplane occlusion surfaces. The second set includes maxillary and mandibular premolars and molars, all of the teeth having flat lingual and buccal cusps and a central mesial-distal fossa between the cusps, the central mesial-distal fossa of the mandibular teeth being designed to accommodate the lingual cusps of the maxillary teeth of the first set. The second set has been designed with full length premolars which are of sufficient length to harmonize with canines, the premolars being provided facial surfaces having a cusp like effect by having marginal ridges slightly lower than the center of the buccal and lingual cusps.Type: ApplicationFiled: January 13, 2003Publication date: July 15, 2004Applicant: Ivoclar Vivadent, Inc.Inventor: Frank R. Lauciello
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Patent number: D487314Type: GrantFiled: January 13, 2003Date of Patent: March 2, 2004Assignee: Ivoclar Vivadent, Inc.Inventors: Lee Culp, Frank R. Lauciello