Patents Assigned to Cadent Ltd.
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System and method for manufacturing a dental prosthesis and a dental prosthesis manufactured thereby
Publication number: 20070233299Abstract: A dental prosthesis is made by externally machining successive layers of wax, each of which is formed on a previous prosthesis layer and/or on a coping. Each wax layer is used to form a mold in situ over the previous prosthesis layer/coping, and the appropriate prosthesis material is cast or otherwise molded to conform to the wax layer by the mold.Type: ApplicationFiled: April 6, 2007Publication date: October 4, 2007Applicant: CADENT LTD.Inventors: Avi Kopelman, Eldad Taub -
Patent number: 7275930Abstract: A method for virtual orthodontic treatment is provided in which a virtual set of orthodontic components is associated, in a virtual space, with a first virtual three-dimensional image of teeth, and then by a set of rules which define the effect of the set of components' teeth, the effect of the virtual treatment can be computed. This virtual treatment can be used to predict the results of a real-life orthodontic treatment as to design such a treatment.Type: GrantFiled: January 2, 2004Date of Patent: October 2, 2007Assignee: Cadent LtdInventors: Eldad Taub, Avi Kopelman
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Patent number: 7273368Abstract: A method for virtual orthodontic treatment is provided in which a virtual set of orthodontic components is associated, in a virtual space, with a first virtual three-dimensional image of teeth, and then by a set of rules which define the effect of the set of components' teeth, the effect of the virtual treatment can be computed. This virtual treatment can be used to predict the results of a real-life orthodontic treatment as to design such a treatment.Type: GrantFiled: February 7, 2005Date of Patent: September 25, 2007Assignee: Cadent LtdInventors: Eldad Taub, Avi Kopelman
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Publication number: 20070203663Abstract: According to the invention, a method and system are provided for scanning, and for facilitating scanning of, an intraoral cavity. The target parts of the intraoral cavity that it is desired to have scanned are identified, and the spatial relationships between a scanning device and the target parts of the intraoral cavity suitable for enabling said target parts to be scanned by said scanning device, are also identified or otherwise determined. These relationships are then displayed, and the displayed relationships are used as a guide for scanning the intraoral cavity.Type: ApplicationFiled: April 27, 2007Publication date: August 30, 2007Applicant: CADENT LTD.Inventors: Avi Kopelman, Eldad Taub, Noam Babayoff
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Patent number: 7255558Abstract: A dental instrument and method for imaging the three-dimensional topography of one or more teeth in the oral cavity of an individual is provided. The instrument includes a probe insertable into the oral cavity to receive the image of these surfaces which can then be processed. Combined with the probe is an auxiliary which projects an air stream toward the surface to be imaged by the probe and acts to evaporate and remove from these surfaces a liquid film coating formed by saliva and other fluids present in the oral cavity, to render these surfaces dry and enhance their reflectivity and in doing so, provide clearer images.Type: GrantFiled: June 18, 2002Date of Patent: August 14, 2007Assignee: Cadent, Ltd.Inventors: Noam Babayoff, Eldad Taub, Avi Kopelman
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Publication number: 20070164203Abstract: An apparatus adapted for con focal imaging of a non-flat specimen comprising a coherent light source for producing a light beam, imaging optics adapted to focus the light beam into at least one spot on a surface of a specimen, and a detector adapted to receive and detect light reflected from the specimen surface. The imaging optics comprise at last one optical component located so that the light reflected from the specimen surface passes therethrough on its way to the detector. The optical component is movable so as to move the at least one spot, within a range of movement, to a number of distinct locations in a plane perpendicular to the apparatus' optical axis, within the detector's integration time.Type: ApplicationFiled: March 9, 2007Publication date: July 19, 2007Applicant: CADENT LTDInventors: Noam Babayoff, Yossef Atiya, Tzvi Philipp
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Publication number: 20070154867Abstract: The invention provides a method for creating a physical teeth model. The method comprises the following steps: providing a virtual three dimensional (3D) representation of a patient's dentition that comprises at least a region of the teeth that includes a tooth stump on which a crown is to be fitted or a region on to which a bridge is to be fitted; and preparing a physical model of the jaws of a subject from a blank, based on information from said virtual 3D image.Type: ApplicationFiled: March 7, 2007Publication date: July 5, 2007Applicant: CADENT LTD.Inventors: Eldad Taub, Avi Kopelman
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Publication number: 20070145248Abstract: An apparatus adapted for confocal imaging of a non-flat specimen comprising a light source for producing a light beam, imaging optics adapted to focus the light beam into at least one spot on a surface of a specimen, and a detector adapted to receive and detect light reflected from the specimen surface. The light source comprises an optical system for converting a coherent beam into a plurality of beams, each of which is modified by a moving diffuser within a range of movement that is correlated to the detector's integration time.Type: ApplicationFiled: February 5, 2007Publication date: June 28, 2007Applicant: Cadent LTD.Inventors: Noam Babayoff, Yossef Atiya, Tzvi Philipp
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System and method for manufacturing a dental prosthesis and a dental prosthesis manufactured thereby
Patent number: 7236842Abstract: A dental prosthesis is made by externally machining successive layers of wax, each of which is formed on a previous prosthesis layer and/or on a coping. Each wax layer is used to form a mold in situ over the previous prosthesis layer/coping, and the appropriate prosthesis material is cast or otherwise molded to conform to the wax layer by the mold.Type: GrantFiled: December 1, 2005Date of Patent: June 26, 2007Assignee: Cadent Ltd.Inventors: Avi Kopelman, Eldad Taub -
Patent number: 7230725Abstract: Determining surface topology of a portion of a three-dimensional structure is provided. An array of incident light beams passing through a focusing optics and a probing face is shone on said portion. The focusing optics defines one or more focal planes forward the probing face in a position which can be changed by the focusing optics. The beams generate illuminated spots on the structure and the intensity of returning light rays propagating in an optical path opposite to that of the incident light rays is measured at various positions of the focal plane(s). By determining spot-specific positions yielding a maximum intensity of the returned light beams, data is generated which is representative of said topology.Type: GrantFiled: March 17, 2006Date of Patent: June 12, 2007Assignee: Cadent LtdInventors: Noam Babayoff, Isaia Glaser-Inbari
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Patent number: 7220124Abstract: The invention provides a method for creating a physical teeth model. The method comprises the following steps: providing a virtual three dimensional (3D) representation of a patient's dentition that comprises at least a region of the teeth that includes a tooth stump on which a crown is to be fitted or a region on to which a bridge is to be fitted; and preparing a physical model of the jaws of a subject from a blank, based on information from said virtual 3D image.Type: GrantFiled: October 2, 2003Date of Patent: May 22, 2007Assignee: Cadent Ltd.Inventors: Eldad Taub, Avi Kopelman
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Patent number: 7214946Abstract: An apparatus adapted for confocal imaging of a non-flat specimen comprising a coherent light source for producing a light beam, imaging optics adapted to focus the light beam into at least one spot on a surface of a specimen, and a detector adapted to receive and detect light reflected from the specimen surface. The imaging optics comprise at least one optical component located so that the light reflected from the specimen surface passes therethrough on its way to the detector. The optical component is movable so as to move the at least one spot, within a range of movement, to a number of distinct locations in a plane perpendicular to the apparatus' optical axis, within the detector's integration time.Type: GrantFiled: December 30, 2005Date of Patent: May 8, 2007Assignee: Cadent LtdInventors: Noam Babayoff, Yossef Atiya, Tzvi Philipp
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Patent number: 7202466Abstract: An apparatus adapted for confocal imaging of a non-flat specimen comprising a light source for producing a light beam, imaging optics adapted to focus the light beam into at least one spot on a surface of a specimen, and a detector adapted to receive and detect light reflected from the specimen surface. The light source comprises an optical system for converting a coherent beam into a plurality of beams, each of which is modified by a moving diffuser within a range of movement that is correlated to the detector's integration time.Type: GrantFiled: August 24, 2004Date of Patent: April 10, 2007Assignee: Cadent Ltd.Inventors: Noam Babayoff, Yossef Atiya, Tzvi Philipp
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Patent number: 7160107Abstract: The present invention provides a virtual orthodontic treatment method, comprising, providing a virtual diagnostic setup model of teeth of at least one jaw of an individual, associating virtual orthodontic appliances with all teeth in the model to obtain a first composite model and repositioning teeth into an initial treatment state according to pre-defined appliances-dependent rules; in the initial treatment state, detaching one or more teeth from their corresponding one or more orthodontic appliances, repositioning one or more appliances, reassociating one or more appliances with the teeth, permitting the teeth to reposition according to the appliances-dependent rules to obtain an altered treatment state, yielding a better grade, according to one or more systems for grading an orthodontic model, as compared to the grade of initial treatment state.Type: GrantFiled: May 15, 2003Date of Patent: January 9, 2007Assignee: Cadent Ltd.Inventors: Avi Kopelman, Baruch Nissenbaum, Leonid Rasovsky
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Patent number: 7147464Abstract: A method for for comparing between an orthodontic element's actual position on the surface of a tooth and a proper position comprise monitoring the element, the tooth or both once the element and the tooth are proximal to one another by an image acquisition unit which transmits an image to a screen that displays the image and displaying information on the screen regarding proper position of the element in a manner allowing to compare between the actual and the proper position is disclosed. Further disclosed is a system and device for positioning of an orthodontic element or a marking device having a marking member for marking a position for subsequent placement of an orthodontic element on a surface of a tooth.Type: GrantFiled: August 10, 2004Date of Patent: December 12, 2006Assignee: Cadent LtdInventors: Eldad Taub, Baruch Nissenbaum, Avi Kopelman
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Publication number: 20060275737Abstract: A computer-based prosthodontic method is provided, for enabling a dental practitioner to define a finish line of a dental prosthesis of at least one tooth to be fitted over a tooth preparation. The method comprises the following steps: providing a three-dimensional (3D) digital data relating to the patient's dentition, the 3D data includes data representative of the surface topology of the preparation and its surroundings; generating first finish line data representative of at least a portion of the finish line and superimposing an image of the finish line on an image of the dentition; obtaining second finish line data determined on the basis of input received from a dental practitioner; and using the second finish line data to update the first finish line data and superimposing the updated data on the dentition image.Type: ApplicationFiled: August 16, 2006Publication date: December 7, 2006Applicant: CADENT LTD.Inventors: Avi Kopelman, Eldad Taub
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Publication number: 20060271229Abstract: A wax model of a required coping is produced using CNC machining techniques based on a virtual model of the coping created from digital data obtained from the intraoral cavity. The dental coping is then fabricated from the wax model.Type: ApplicationFiled: August 4, 2006Publication date: November 30, 2006Applicant: CADENT, LTD.Inventors: Avi Kopelman, Eldad Taub
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Publication number: 20060252003Abstract: A method for for comparing between an orthodontic element's actual position on the surface of a tooth and a proper position comprise monitoring the element, the tooth or both once the element and the toot are proximal to one another by an image acquisition unit which transmits an image to a screen that displays the image and displaying information on the screen regarding proper position of the element in a manner allowing to compare between the actual and the proper position is disclosed. Further disclosed is a system and device for positioning of an orthodontic element or a marking device having a marking member for marking a position for subsequent placement of an orthodontic element on a surface of a tooth.Type: ApplicationFiled: July 5, 2006Publication date: November 9, 2006Applicant: CADENT LTDInventors: Eldad Taub, Baruch Nissenbaum, Avi Kopelman
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Patent number: 7112065Abstract: A computer-based prosthodontic method is provided, for enabling a dental practitioner to define a finish line of a dental prosthesis of at least one tooth to be fitted over a tooth preparation. The method comprises the following steps: providing a three-dimensional (3D) digital data relating to the patient's dentition, the 3D data includes data representative of the surface topology of the preparation and its surroundings; generating first finish line data representative of at least a portion of the finish line and superimposing an image of the finish line on an image of the dentition; obtaining second finish line data determined on the basis of input received from a dental practitioner; and using the second finish line data to update the first finish line data and superimposing the updated data on the dentition image.Type: GrantFiled: July 22, 2003Date of Patent: September 26, 2006Assignee: Cadent Ltd.Inventors: Avi Kopelman, Eldad Taub
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Publication number: 20060212260Abstract: According to the invention, a method and system are provided for scanning, and for facilitating scanning of, an intraoral cavity. The target parts of the intraoral cavity that it is desired to have scanned are identified, and the spatial relationships between a scanning device and the target parts of the intraoral cavity suitable for enabling said target parts to be scanned by said scanning device, are also identified or otherwise determined. These relationships are then displayed, and the displayed relationships are used as a guide for scanning the intraoral cavity.Type: ApplicationFiled: March 2, 2006Publication date: September 21, 2006Applicant: Cadent Ltd.Inventors: Avi Kopelman, Eldad Taub, Noam Babayoff