Method and system for fabricating a dental coping, and a coping fabricated thereby
AssigneeCadent Ltd.
InventorsAvi Kopelman, Eldad Taub
Life of this patent
Estimating the term…
Abstract
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.
Claims28
A computer-implemented method for the fabrication of a dental coping of a dental prosthesis of at least one tooth to be fitted over a tooth preparation, comprising:
- a) providing a three-dimensional (3D) digital data relating to the patient's dentition, said 3D data including data representative of the surface topology of said preparation and its surroundings;
- b) generating a three-dimensional (3D) virtual model of a dental coping for said at least one tooth based on said 3D digital data, the virtual model having an outer surface and an inner surface for fitting over a portion of the surface of the tooth preparation in close engagement;
- c) generating a computerized numerical control (CNC) set of instructions corresponding to the 3D model of said coping;
- d) based on said set of instructions, fabricating a wax model of said coping by a computerized numerical control (CNC) milling machine by milling an outer surface of said wax model corresponding to said outer surface of said virtual model and by milling an inner surface of said wax model corresponding to said inner surface of said virtual model;
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- e) fabricating a dental coping from the wax model.
A computer-implemented method for the fabrication of a coping wax model to be used for the fabrication of a dental coping of a dental prosthesis of at least one tooth to be fitted over a tooth preparation, comprising:
- i. providing a three-dimensional (3D) digital data relating to the patients dentition, said 3D data including data representative of the surface topology of said preparation and its surroundings;
- ii. generating a three-dimensional (3D) virtual model of a dental coping for said at least one tooth based on said 3D digital data, the virtual model having an outer surface and an inner surface for fitting over a portion of the surface of the tooth preparation in close engagement;
- iii. generating a computerized numerical control (GNC) set of instructions corresponding to the 3D model of said coping;
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- iv. based on said set of instructions, fabricating a wax model by a computerized numerical control (CNC) milling machine by milling an outer surface of said wax model corresponding to said outer surface of said virtual model and by milling an inner surface of said wax model corresponding to said inner surface of said virtual model.
A system for the fabrication of a dental coping of a dental prosthesis of at least one tooth to be fitted over a tooth preparation, comprising:
- A. means for providing a three-dimensional (3D) digital data relating to the patient's dentition, said 3D data including data representative of the surface topology of said preparation and its surroundings;
- B. means for generating a three-dimensional (3D) virtual model of a dental coping for said at least one tooth based on said 3D digital data, the virtual model having an outer surface and an inner surface for fitting over a portion of the surface of the tooth preparation in close engagement;
- C. means for generating a computerized numerical control (CNC) set of instructions corresponding to the 3D model of said coping;
- D. means for fabricating a wax model of said coping by a computerized numerical control (CNC) milling machine by milling an outer surface of said wax model corresponding to said outer surface of said virtual model and by milling an inner surface of said wax model corresponding to said inner surface of said virtual model;
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- E. means for fabricating a dental coping from the wax model.
A system for the fabrication of a coping wax model to be used for the fabrication of a dental coping of a dental prosthesis of at least one tooth to be fitted over a tooth preparation, comprising:
- (I) means for providing a three-dimensional (3D) digital data relating to the patient's dentition, said 3D data including data representative of the surface topology of said preparation and its surroundings;
- (II) means for generating a three-dimensional (3D) virtual model of a dental coping for said at least one tooth based on said 3D digital data, the virtual model having an outer surface and an inner surface for fitting over a portion of the surface of the tooth preparation in close engagement;
- (III) means for generating a computerized numerical control (CNC) set of instructions corresponding to the 3D model of said coping;
- and
- (IV) means for fabricating a wax model based on said set of instructions by a computerized numerical control (CNC) milling machine by milling an outer surface of said wax model corresponding to said outer surface of said virtual model and by milling an inner surface of said wax model corresponding to said inner surface of said virtual model.
Dependencies are inferred from the claim text.