Patents Assigned to Dentsply Canada Ltd.
  • Patent number: 8992216
    Abstract: There is provided a method for detecting interproximal tooth defects such as caries by injecting light at one or more wavelengths into a tooth and detecting reflected/diffracted light or emitted fluorescence. The detected light intensity is characteristic of a healthy or diseased tooth in the interproximal area.
    Type: Grant
    Filed: August 29, 2006
    Date of Patent: March 31, 2015
    Assignee: Dentsply Canada Ltd.
    Inventor: Naim Karazivan
  • Patent number: 8814571
    Abstract: 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: Grant
    Filed: April 17, 2009
    Date of Patent: August 26, 2014
    Assignee: Dentsply Canada Ltd.
    Inventor: Naim Karazivan
  • Patent number: 8721327
    Abstract: A dental tartar detection and removal device (10) comprises a powered tartar removal instrument (12) adapted to be displaced along a tooth (T), illumination means (14) for illuminating with an incident light a region on the examined or periodontal site, detection means (16) for collecting the light reflected there at, and an analysing system for providing a signal to an operator (OP) of the tartar removal instrument (12) or to the tartar removal instrument when measurements on the reflected light in one or more predetermined ranges of wavelengths fall within any first predetermined range of values that are characteristic of tartar, or when said measurements do not fall within any second predetermined range of values that are characteristic of artefacts other than tartar.
    Type: Grant
    Filed: April 20, 2011
    Date of Patent: May 13, 2014
    Assignee: Dentsply Canada Ltd.
    Inventors: Naim Karazivan, Emmanuel Montini, François Ayotte
  • Patent number: 8297971
    Abstract: A dental tartar detection system (10), especially for detection of subgingival tartar (S), comprises a probe (12) adapted to be displaced along a tooth (T) an illumination system (14) for illuminating with an incident light a region on the tooth (T), a detection system (16) for collecting the light reflected thereat, and an analysis system (34) for providing a signal to an operator of the probe (12) when measurements on the reflected light in one or more predetermined range of wavelengths fall within any predetermined range of values that are characteristic of tartar (S). Typically, the detection of tartar (S) is achieved on the basis of the possible colors that tartar (S) can have such that the aforementioned one or more predetermined range of values cover wavelengths associated with colors of tartar (S).
    Type: Grant
    Filed: December 29, 2010
    Date of Patent: October 30, 2012
    Assignee: Dentsply Canada Ltd.
    Inventors: Yves Berube-Lauziere, Naim Karazivan, Emmanuel Montini, Sophie Bernier, Marc Levesque, Yvan Mimeault, Michel Doucet
  • Publication number: 20110294089
    Abstract: A dental tartar detection and removal device (10) comprises a powered tartar removal instrument (12) adapted to be displaced along a tooth (T), illumination means (14) for illuminating with an incident light a region on the examined or periodontal site, detection means (16) for collecting the light reflected there at, and an analysing system for providing a signal to an operator (OP) of the tartar removal instrument (12) or to the tartar removal instrument when measurements on the reflected light in one or more predetermined ranges of wavelengths fall within any first predetermined range of values that are characteristic of tartar, or when said measurements do not fall within any second predetermined range of values that are characteristic of artefacts other than tartar.
    Type: Application
    Filed: April 20, 2011
    Publication date: December 1, 2011
    Applicant: Dentsply Canada Ltd.
    Inventors: Naim KARAZIVAN, Emmanuel MONTINI, François AYOTTE
  • Publication number: 20110177467
    Abstract: There is disclosed a tartar removal tip having a ceramic distal portion and a metal proximal portion. An optical dental pathology detection system has a housing that mates with a handle of a tartar removal instrument. A replacement tip for a tartar removal device has integrated optical components and a coupler for coupling to a dental pathology detection system without interacting or changing a handle of an instrument to which the replacement tip connects.
    Type: Application
    Filed: January 19, 2011
    Publication date: July 21, 2011
    Applicant: DENTSPLY CANADA LTD.
    Inventor: Naim KARAZIVAN
  • Publication number: 20110165534
    Abstract: A dental tartar detection system (10), especially for detection of subgingival tartar (S), comprises a probe (12) adapted to be displaced along a tooth (T) an illumination system (14) for illuminating with an incident light a region on the tooth (T), a detection system (16) for collecting the light reflected thereat, and an analysis system (34) for providing a signal to an operator of the probe (12) when measurements on the reflected light in one or more predetermined range of wavelengths fall within any predetermined range of values that are characteristic of tartar (S). Typically, the detection of tartar (S) is achieved on the basis of the possible colours that tartar (S) can have such that the aforementioned one or more predetermined range of values cover wavelengths associated with colours of tartar (S).
    Type: Application
    Filed: December 29, 2010
    Publication date: July 7, 2011
    Applicant: DENTSPLY CANADA LTD
    Inventors: Yves BERUBE-LAUZIERE, Naim KARAZIVAN, Emmanuel MONTINI, Sophie BERNIER, Marc LEVESQUE, Yvan MIMEAULT, Michel DOUCET
  • Patent number: 7862335
    Abstract: A dental tartar detection system (10), especially for detection of subgingival tartar (S), comprises a probe (12) adapted to be displaced along a tooth (T), an illumination system (14) for illuminating with an incident light a region on the tooth (T), a detection system (16) for collecting the light reflected thereat, and an analysis system (34) for providing a signal to an operator of the probe (12) when measurements on the reflected light in one or more predetermined range of wavelengths fall within any predetermined range of values that are characteristic of tartar (S). Typically, the detection of tartar (S) is achieved on the basis of the possible colors that tartar (S) can have such that the aforementioned one or more predetermined range of values cover wavelengths associated with colors of tartar (S).
    Type: Grant
    Filed: January 22, 2001
    Date of Patent: January 4, 2011
    Assignee: Dentsply Canada Ltd.
    Inventors: Yves Berube-Lauziere, Naim Karazivan, Emmanuel Montini, Sophie Bernier, Marc Levesque, Yvan Mimeault, Michel Doucet
  • Publication number: 20100203467
    Abstract: 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: Application
    Filed: April 17, 2009
    Publication date: August 12, 2010
    Applicant: DENTSPLY CANADA LTD.
    Inventor: Naim Karazivan
  • Publication number: 20100040993
    Abstract: A diagnostic tool for detection of dental pathology is provided that functions as a self-contained, handheld unit. The tool includes a light probe and a housing within which are located an optical source, an optical detector, an analysis processor and a power source. The components within the housing are integrated on a support which is removable from the housing. The housing is in multiple pieces which may be connected together during operation, and disconnected to allow removal of the support. This allows for sterilization of the housing and light probe without the electrical components of the device.
    Type: Application
    Filed: June 22, 2007
    Publication date: February 18, 2010
    Applicant: DENTSPLY CANADA LTD.
    Inventors: Naim Karazivan, Sylvain Trottier, Claude Cyr, Stéphane Gagnon, Francis Haynes
  • Patent number: 7537450
    Abstract: 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: Grant
    Filed: October 26, 2001
    Date of Patent: May 26, 2009
    Assignee: Dentsply Canada Ltd.
    Inventor: Naim Karazivan
  • Publication number: 20080248447
    Abstract: There is provided a method for detecting interproximal tooth defects such as caries by injecting light at one or more wavelengths into a tooth and detecting reflected/diffracted light or emitted fluorescence. The detected light intensity is characteristic of a healthy or diseased tooth in the interproximal area.
    Type: Application
    Filed: August 29, 2006
    Publication date: October 9, 2008
    Applicant: DENTSPLY CANADA LTD.
    Inventor: Naim Karazivan
  • Publication number: 20080102416
    Abstract: There is disclosed a tartar removal tip having a ceramic distal portion and a metal proximal portion. An optical dental pathology detection system has a housing that mates with a handle of a tartar removal instrument. A replacement tip for a tartar removal device has integrated optical components and a coupler for coupling to a dental pathology detection system without interacting or changing a handle of an instrument to which the replacement tip connects.
    Type: Application
    Filed: October 12, 2007
    Publication date: May 1, 2008
    Applicant: DENTSPLY CANADA LTD.
    Inventor: Naim Karazivan