Patents Assigned to Vita Zahnfabrik H. Rauter GmbH & Co. KG
  • Publication number: 20150376053
    Abstract: The invention relates to glass ceramics based on the lithium metasilicate system (Li2O.SiO2 (Li2SiO3)), which are mechanically processible in a simple manner in an intermediate stage of the crystallization and, after complete crystallization, represent a high-strength, highly translucent and chemically stable glass ceramic.
    Type: Application
    Filed: September 4, 2015
    Publication date: December 31, 2015
    Applicants: FRAUNHOFER-GESELLSCHAFT zur Förderung der angewandten Forschung e.V., VITA ZAHNFABRIK H. RAUTER GMBH & CO. KG, DEGUDENT GMBH
    Inventors: Bernhard DURSCHANG, Jörn PROBST, Norbert THIEL, Michael GÖDIKER, Markus VOLLMANN, Udo SCHUSSER
  • Patent number: 9206077
    Abstract: The invention relates to glass ceramics, which show high strength, high translucency, high chemical stability and which are still mechanically processible. The invention further refers to a method for producing a dental restoration comprising such glass or glass ceramic as well as the dental restoration itself.
    Type: Grant
    Filed: June 18, 2012
    Date of Patent: December 8, 2015
    Assignees: FRAUNHOFER-GESELLSCHAFT zur Förderung der angewandten Forschung e. V., VITA ZAHNFABRIK H. RAUTER GMBH & CO. KG, DEGUDENT GMBH
    Inventors: Bernhard Durschang, Jörn Probst, Norbert Thiel, Michael Gödiker, Markus Vollmann, Udo Schusser, Carsten Wiesner
  • Patent number: 9125812
    Abstract: The invention relates to glass ceramics based on the lithium metasilicate system (Li2OSiO2(Li2SiO3)), which are mechanically processible in a simple manner in an intermediate stage of the crystallization and, after complete crystallization, represent a high-strength, highly translucent and chemically stable glass ceramic.
    Type: Grant
    Filed: June 22, 2011
    Date of Patent: September 8, 2015
    Assignees: FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V., VITA ZAHNFABRIK H. RAUTER GMBH & CO. KG, DEGUDENT GMBH
    Inventors: Bernhard Durschang, Jörn Probst, Norbert Thiel, Michael Gödiker, Markus Vollmann, Udo Schusser
  • Patent number: 8956987
    Abstract: The invention relates to glass-ceramics based on the lithium disilicate system which can be mechanically machined easily in an intermediate step of crystallization and, after complete crystallization, represent a very strong, highly-translucent and chemically-stable glass-ceramic. Likewise, the invention relates to a method for the production of these glass-ceramics. The glass-ceramics according to the invention are used as dental material.
    Type: Grant
    Filed: December 23, 2010
    Date of Patent: February 17, 2015
    Assignees: Fraunhofer-Gesellschaft zur Förderung der Angewandten Forschung E.V., Vita Zahnfabrik H. Rauter GmbH & Co. KG, Degudent GmbH
    Inventors: Bernhard Durschang, Jorn Probst, Norbert Thiel, Joachim Bibus, Markus Vollmann, Udo Schusser
  • Patent number: 8934095
    Abstract: A miniaturized spectrometer/spectrophotometer system and methods are disclosed. A probe tip including one or more light sources and a plurality of light receivers is provided. A first spectrometer system receives light from a first set of the plurality of light receivers. A second spectrometer system receives light from a second set of the plurality of light receivers. A processor, wherein the processor receives data generated by the first spectrometer system and the second spectrometer system, wherein an optical measurement of a sample under test is produced based on the data generated by the first and second spectrometer systems.
    Type: Grant
    Filed: January 8, 2013
    Date of Patent: January 13, 2015
    Assignee: Vita Zahnfabrik H. Rauter GmbH & Co. KG
    Inventors: Wayne D. Jung, Russell W. Jung, Walter W. Sloan, Alan R. Loudermilk
  • Publication number: 20140252272
    Abstract: The invention refers to a method for producing a dental restoration comprising a lithium silicate glass or glass ceramic as well as a dental restoration inself. The invention further refers to a ingot with the same composition having a defined strength.
    Type: Application
    Filed: June 21, 2012
    Publication date: September 11, 2014
    Applicants: Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V., VITA ZAHNFABRIK H. RAUTER GMBH & CO. KG, DEGUDENT GMBH
    Inventors: Bernhard Durschang, Jörn Probst, Norbert Thiel, Michael Gödiker, Markus Vollmann, Udo Schusser, Michael Hackner
  • Publication number: 20140249016
    Abstract: The invention relates to glass-ceramics based on the lithium silicate system which can be mechanically machined easily in an intermediate step of crystallisation and, after complete crystallisation, represent a very strong, highly-translucent and chemically-stable glass-ceramic. Likewise, the invention relates to a method for the production of these glass-ceramics. The glass-ceramics according to the invention are used as dental material.
    Type: Application
    Filed: May 9, 2014
    Publication date: September 4, 2014
    Applicants: FRAUNHOFER-GESELLSCHAFT zur Förderung der angewandten Forschung e.V., VITA Zahnfabrik H. Rauter GmbH & Co. KG, DeguDent GmbH
    Inventors: Bernhard DURSCHANG, Jörn Probst, Norbert Thiel, Joachim Bibus, Markus Vollmann, Udo Schusser
  • Publication number: 20140200129
    Abstract: The invention relates to glass ceramics, which show high strength, high translucency, high chemical stability and which are still mechanically processible. The invention further refers to a method for producing a dental restoration comprising such glass or glass ceramic as well as the dental restoration itself.
    Type: Application
    Filed: June 18, 2012
    Publication date: July 17, 2014
    Applicants: FRAUNHOFER-GESELLSCHAFT zur Förderung der angewandten Forschung e. V., DEGUDENT GMBH, VITA ZAHNFABRIK H. RAUTER GMBH & CO. KG
    Inventors: Bernhard Durschang, Jörn Probst, Norbert Thiel, Michael Gödiker, Markus Vollmann, Udo Schusser, Carsten Wiesner
  • Publication number: 20140106308
    Abstract: Molded member made of form-stabilized material, comprising at least one first component and one second component, characterized in that the second component has a different pigmentation than the first component and the second component is disposed inside the first element, forming a boundary surface, in such a way that the boundary surface represents a spatially curved surface.
    Type: Application
    Filed: December 16, 2013
    Publication date: April 17, 2014
    Applicant: VITA ZAHNFABRIK H. RAUTER GMBH & CO. KG
    Inventors: NORBERT THIEL, Olivia Albarski, Michael Dorn, Stefan Aechtner, Joachim Bibus, Andreas Schmid
  • Publication number: 20140070435
    Abstract: The present invention relates to a porous, silicate, ceramic body, possibly with different colors, with a first density, which can be sintered into a silicate, ceramic body with a second density, wherein the ratio of the first density to the second density is 2/5 to 98/100, and the three-point bending strength of the porous, silicate ceramic body with a first density, measured according to ISO 6872, amounts to 25 to 180 MPa.
    Type: Application
    Filed: November 14, 2013
    Publication date: March 13, 2014
    Applicant: VITA Zahnfabrik H. Rauter GmbH & Co. KG
    Inventors: Norbert THIEL, Michael Dorn, Joachim Bibus, Vilma Geske, Michael Tholey, Enno Bojemueller, Birgit Huber
  • Patent number: 8632889
    Abstract: Molded member made of form-stabilized material, comprising at least one first component and one second component, characterized in that the second component has a different pigmentation than the first component and the second component is disposed inside the first element, forming a boundary surface, in such a way that the boundary surface represents a spatially curved surface.
    Type: Grant
    Filed: July 21, 2009
    Date of Patent: January 21, 2014
    Assignee: Vita Zahnfabrik H. Rauter GmbH & Co. KG
    Inventors: Norbert Thiel, Olivia Albarski, Michael Dorn, Stefan Aechtner, Joachim Bibus, Andreas Schmid
  • Publication number: 20130295523
    Abstract: The invention relates to glass ceramics based on the lithium metasilicate system (Li2O SiO2 (Li2SiO3)), which are mechanically processible in a simple manner in an intermediate stage of the crystallization and, after complete crystallization, represent a high- strength, highly translucent and chemically stable glass ceramic.
    Type: Application
    Filed: June 22, 2011
    Publication date: November 7, 2013
    Applicants: FRAUNHOFER-GESELLSCHAFT zur Förderung der angewandten Forschung e.V., DeguDent GmbH, VITA Zahnfabrik H. Rauter GmbH & Co. KG
    Inventors: Bernhard Durschang, Jôrn Probst, Norbert Thiel, Michael Godiker, Markus Vollmann, Udo Schusser
  • Publication number: 20130255850
    Abstract: A process for the universal, at least partial, veneering of frameworks made of framework materials of dental restorations having a coefficient of thermal expansion CTEframework by means of using a ceramic-based veneer material having a coefficient of thermal expansion CTEveneer, wherein a veneer is prepared by a shaping process from a blank of the respective veneer material to be complementary to the framework, and permanently attached to the framework by adhesive bonding, wherein the difference (?CTE) between the coefficient of thermal expansion of the framework material, CTEframework, and the coefficient of thermal expansion of the veneer material, CTEveneer, is outside the range of 0??CTE<2×10?6 K?1.
    Type: Application
    Filed: December 9, 2011
    Publication date: October 3, 2013
    Applicant: Vita Zahnfabrik H. Rauter GmbH & Co. KG
    Inventors: Norbert Thiel, Enno Bojemüller, Michael Tholey
  • Publication number: 20130188185
    Abstract: A miniaturized spectrometer/spectrophotometer system and methods are disclosed. A probe tip including one or more light sources and a plurality of light receivers is provided. A first spectrometer system receives light from a first set of the plurality of light receivers. A second spectrometer system receives light from a second set of the plurality of light receivers. A processor, wherein the processor receives data generated by the first spectrometer system and the second spectrometer system, wherein an optical measurement of a sample under test is produced based on the data generated by the first and second spectrometer systems.
    Type: Application
    Filed: January 8, 2013
    Publication date: July 25, 2013
    Applicant: VITA ZAHNFABRIK H. RAUTER GMBH & CO. KG
    Inventor: VITA ZAHNFABRIK H. RAUTER GMBH & CO. KG
  • Patent number: 8373857
    Abstract: A miniaturized spectrometer/spectrophotometer system and methods are disclosed. A probe tip including one or more light sources and a plurality of light receivers is provided. A first spectrometer system receives light from a first set of the plurality of light receivers. A second spectrometer system receives light from a second set of the plurality of light receivers. A processor, wherein the processor receives data generated by the first spectrometer system and the second spectrometer system, wherein an optical measurement of a sample under test is produced based on the data generated by the first and second spectrometer systems.
    Type: Grant
    Filed: March 21, 2012
    Date of Patent: February 12, 2013
    Assignee: Vita Zahnfabrik H. Rauter GmbH & Co. KG
    Inventors: Wayne D. Jung, Russell W. Jung, Walter W. Sloan, Alan R. Loudermilk
  • Patent number: 8349459
    Abstract: The present invention relates to an all-ceramic dental prosthesis in which a porous ceramic matrix material is infiltrated with a glass, having a solubility of <1100 ?g/cm2 according to DIN EN ISO 6872. The invention also relates to the use of niobium-containing glass having an Nb2O5 content of more than 0.1% by weight as an infiltration glass for all-ceramic dental compositions.
    Type: Grant
    Filed: March 18, 2008
    Date of Patent: January 8, 2013
    Assignee: Vita Zahnfabrik H. Rauter GmbH & Co. KG
    Inventors: Marc Stephan, Bernhard Durschang
  • Publication number: 20120309607
    Abstract: The invention relates to glass-ceramics based on the lithium disilicate system which can be mechanically machined easily in an intermediate step of crystallisation and, after complete crystallisation, represent a very strong, highly-translucent and chemically-stable glass-ceramic. Likewise, the invention relates to a method for the production of these glass-ceramics. The glass-ceramics according to the invention are used as dental material.
    Type: Application
    Filed: December 23, 2010
    Publication date: December 6, 2012
    Applicants: FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V., DEGUDENT GMBH, VITA ZAHNFABRIK H. RAUTER GMBH & CO. KG
    Inventors: Bernhard Durschang, Jorn Probst, Norbert Thiel, Joachim Bibus, Markus Vollmann, Udo Schusser
  • Patent number: 8300222
    Abstract: A miniaturized spectrometer/spectrophotometer system and methods are disclosed. A probe tip including one or more light sources and a plurality of light receivers is provided. A first spectrometer system receives light from a first set of the plurality of light receivers. A second spectrometer system receives light from a second set of the plurality of light receivers. A processor, wherein the processor receives data generated by the first spectrometer system and the second spectrometer system, wherein an optical measurement of a sample under test is produced based on the data generated by the first and second spectrometer systems.
    Type: Grant
    Filed: August 22, 2011
    Date of Patent: October 30, 2012
    Assignee: Vita Zahnfabrik H. Rauter GmbH & Co. KG
    Inventors: Wayne D. Jung, Russell W. Jung, Walter W. Sloan, Alan R. Loudermilk
  • Patent number: 8257606
    Abstract: A process for the preparation of ceramic dental implants having a surface for improving osseointegration, wherein the following process steps are performed for preparing such surface: —preparation of a ceramic blank having a surface; —treating at least one partial area of the surface of the ceramic blank by an ablating process that produces a surface roughness of the surface that corresponds to a treatment by sand blasting under a blasting pressure of from 1.5 bar to 8 bar and with a grain size of the blasting media used for sand blasting of from 30 ?m to 250 ?m; —followed by a chemical treatment of said at least one partial area of the surface of the ceramic blank treated with the ablating process; —followed by a thermal treatment of the blank whose surface has been subjected to said ablating and chemical treatments at temperatures of >125° C. > A ceramic body obtainable by the process according to the invention is also described.
    Type: Grant
    Filed: July 7, 2008
    Date of Patent: September 4, 2012
    Assignee: Vita Zahnfabrik H. Rauter GmbH & Co. KG
    Inventors: Marc Stephan, André Schöne
  • Patent number: D765856
    Type: Grant
    Filed: August 12, 2014
    Date of Patent: September 6, 2016
    Assignee: Vita Zahnfabrik H. Rauter GmbH & Co. KG
    Inventors: Andre Schoene, Jens Fischer