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US 8,506,299 B2Granted
Device and method for manufacturing dental prosthesis
AssigneeHeraeus Kulzer GmbH
InventorsChristian Gärtner, Bernd Kordaβ
Life of this patent
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Abstract
The invention relates to a device and a method for manufacturing a dental prosthesis with which and in which the data records for fabricated teeth are fitted into a virtual model of the oral situation. It is possible to subsequently directly manufacture the denture base or to insert the fabricated teeth in the model.
Claims11
A device for the manufacture of a dental prosthesis comprising:
- (a) a scanning or recording apparatus that produces a digital 3-dimensional recording of an oral situation, on a patient or on a model;
- (b) a processing device that produces from said recording a virtual model of the oral situation;
- (c) a 3-dimensional data record for prefabricated dental prostheses;
- (d) a processing module that fits data for prefabricated dental prostheses into the virtual model and thereby creates a virtual model with integrated dental prosthetic teeth;
- (e) a simulation module that simulates mandibular movements on the virtual model and tests and optimizes positions of the integrated dental prosthetic teeth in the virtual model;
- and
- (f) a device that manufactures a positioning template or a denture base from the virtual model with the integrated dental prosthetic teeth.
4 more elements
A method for manufacturing a dental prosthesis, said method comprising the following steps:
- (a) scanning fabricated teeth to produce 3-dimensional data records of fabricated teeth;
- (b) recording and digitizing 3-dimensional, anatomical relationships in an oral cavity;
- (c) optionally recording and digitizing 3-dimensional data on bite rims;
- (d) optionally recording mandibular data;
- (e) processing data obtained from step (b) and optionally steps (c) and/or (d) in such a way that relevant anatomical structures for virtual placement of teeth are securely affixed, and a virtual model data record is obtained;
- (f) selecting 3-dimensional data records of fabricated teeth;
- (g) virtual placing of the teeth into the virtual model;
- (h) simulating in/on a computer mandibular movements on the virtual model and testing and optimizing positions of the integrated dental prosthetic teeth in the virtual model;
- and
- either
- (k) transferring the virtual placing of the teeth to a model either by a positioning template, or direct placement of the teeth on the model;
- (l) affixing the teeth to the model;
- and
- (m) attaching a denture base to the model;
- or
- (n) without carrying out steps (k), (l) and (m), directly manufacturing a denture base, according to data for a virtual denture placement, with positioning aids for a final correct positioning and affixing of the teeth.
13 more elements
Dependencies are inferred from the claim text.