Method for obtaining subgingival marginal shape for prosthesis design non-invasively
US12156784B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Feb 18, 2022 |
| Grant date | Dec 3, 2024 |
| Priority date | — |
| Expiry date | Feb 27, 2043 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2219/2004
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The present inventive concept relates to a method for obtaining a subgingival marginal shape for a prosthesis design non-invasively by means of an optical coherence tomography (OCT) scanner for obtaining a subgingival marginal shape and an intraoral scanner for obtaining a tooth surface shape, the method including the steps of: obtaining a surface shape of a prepared tooth by means of the intraoral scanner; obtaining the subgingival marginal shape (crown margin line) of the prepared tooth by means of the OCT scanner; and merging the surface shape of the prepared tooth with the subgingival marginal shape to obtain a final three-dimensional shape of the prepared tooth.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.