Method for manipulating a dental virtual model, method for creating physical entities based on a dental virtual model thus manipulated, and dental models thus created
AssigneeCadent Ltd.
InventorsAvi Kopelman, Eldad Taub
Life of this patent
Estimating the term…
Abstract
A 3D virtual model of an intra oral cavity in which at least a part of a finish line of a preparation is obscured is manipulated in virtual space by means of a computer or the like to create, recreate or reconstruct finish line data and other geometrical corresponding to the obscured part. Trimmed virtual models, and trimmed physical models, can then be created utilizing data thus created. The virtual models and/or the physical models may be used in the design and manufacture of copings or of prostheses.
Claims20
A system for manipulating a virtual dental model, the system comprising a computer having instructions that, when executed, cause the computer to:
- receive a 3D virtual model of a dental site comprising dental surfaces, wherein a first portion of the dental site is obscured by a material;
- manipulate the 3D virtual model to create an auxiliary 3D virtual model that includes a representation of the first portion of the dental site in which the first portion is not obscured by the material;
- and
- provide topographical data of the first portion from the virtual model and the auxiliary virtual model so as to reconstruct data of the first portion of the dental site.
A system for manufacturing a physical dental model of a dental site, the system comprising a processor operably coupled to a computer readable storage medium comprising instructions that, when executed, cause the processor to:
- receive a 3D virtual model of the dental site comprising dental surfaces, wherein a first portion of the dental site is obscured by a material;
- trim the 3D virtual model to virtually replace a part of the virtual model comprising the obscured first portion with an auxiliary virtual model comprising a representation of the first portion in which the first portion is not obscured by the material, thereby creating a trimmed 3D virtual model;
- manipulate the trimmed 3D virtual model to create a first virtual model part corresponding to a hard dental surface of the dental site, and a second virtual model part corresponding to a soft dental surface of the dental site;
- and
- output manufacturing instructions to a manufacturing machine for creating a physical model of the first virtual model part and a physical model of the second virtual model part.
A system for manipulating a virtual dental model, the system comprising a processor operably coupled to a computer readable storage medium comprising instructions that, when executed, cause the processor to:
- receive a 3D virtual model of a dental site comprising dental surfaces, wherein a first portion of the dental site is obscured by a material;
- separate the 3D virtual model into a first virtual model part corresponding to an unobscured portion of the dental site and a second virtual model part corresponding to the first portion of the dental site obscured by the material;
- generate an auxiliary 3D virtual model representing an unobscured first portion of the dental site by providing topographical data of the first virtual model part and the second virtual model part so as to reconstruct data of the first portion of the dental site to exclude the material;
- and
- generate a reconstructed 3D virtual model of the dental site based on the first virtual model part and the auxiliary 3D virtual model.
Dependencies are inferred from the claim text.