Computer-aided design and manufacturing of removable partial denture frameworks with enhanced biomechanical properties
US10959818B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 8, 2016 |
| Grant date | Mar 30, 2021 |
| Priority date | — |
| Expiry date | Jun 14, 2037 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61C13/2255
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A method is provided for designing and fabricating a removable partial denture (RPD) framework including clasp retainers configured for removable engagement with abutment teeth of a patient. The method includes obtaining an initial digital model of the RPD framework based on patient image data. For each clasp retainer, a set of relevant geometric parameters is identified, each relevant geometric parameter being provided with a nominal value, and a target value of dislodging force is provided. The method further includes performing a force analysis on the initial digital model to determine corrected values for the relevant geometric parameters of each clasp retainer such that when the corrected values are assigned to the relevant geometric parameters, the dislodging force matches its target value. The method also includes obtaining a corrected digital model based on the corrected values, and fabricating the RPD framework based on the corrected digital model.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.