Endodontic drill-file
US4190958A · kind A · utility
42Cited by
5References
6Claims
0Family size
Inventors
Key dates
| Filing date | Jan 17, 1978 |
| Grant date | Mar 4, 1980 |
| Priority date | — |
| Expiry date | Jan 17, 1998 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61C5/42
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
This invention is an improvement in endodontic drills used by dentists specializing in root canal dentistry. Present endodontic practice in the preparation, cleaning, and shaping of root canals in teeth entails the use of inefficient steel drills. The present invention provides a diamond coated drill and file combined of a design that assures an extremely smooth canal surface to facilitate the cleaning and sealing of the root canal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.