Matrix retainer apparatus for dental restorations
US5607302A · kind A · utility
40Cited by
18References
23Claims
0Family size
Inventors
Key dates
| Filing date | Aug 24, 1995 |
| Grant date | Mar 4, 1997 |
| Priority date | — |
| Expiry date | Aug 24, 2015 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61C5/85
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A matrix retainer apparatus for dental restorations is formed from a resilient, substantially planar main body, a pair of fines extending from the ends of the main body and retention members provided on the tines. The retention members serve to increase the coefficient of friction between the matrix retainer and the tooth or tooth reconstruction element and avoid inadvertent removal of the retainer therefrom. The invention is also directed to a matrix retainer system composed of several matrix retainers adapted for a variety of complex applications.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.