Dental compactor instrument
USRE34439E · kind E · reissue
19Cited by
7References
11Claims
0Family size
Inventor
Key dates
| Filing date | Mar 13, 1991 |
| Grant date | Nov 9, 1993 |
| Priority date | — |
| Expiry date | Mar 13, 2011 |
Classification
- Technology area (CPC —)General
Abstract
A dental instrument adapted to be used as a dental compactor for condensing a thermoplastic material in the extirpated root canal of a tooth. The dental compactor instrument is formed with a tapered shank or working portion having at least two helical flutes defining at least two continuous helical shoulders. A helical peripheral land extends between adjacent helical flutes at the periphery of the shank. The shoulders have a neutral rake angle at the periphery of the shank.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.