Dental reinforcing pins
US4189834A · kind A · utility
8Cited by
8References
5Claims
0Family size
Inventor
Key dates
| Filing date | Jun 8, 1977 |
| Grant date | Feb 26, 1980 |
| Priority date | — |
| Expiry date | Jun 8, 1997 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61C5/35
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A dental reinforcing pin including a threaded portion, for self-tapping insertion in a bore formed in a tooth understructure, and a connecting portion formed integrally with the threaded portion. The connecting portion includes a shank, adapted for engagement in a dental handpiece, and a weakened portion intermediate the threaded portion and the connecting portion to permit shearing and separation of the connecting portion from the threaded portion when the pin is inserted to the depth of the bore.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.