Dental compactor instrument
US4871312A · kind A · utility
34Cited by
4References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 4, 1988 |
| Grant date | Oct 3, 1989 |
| Priority date | — |
| Expiry date | Nov 4, 2008 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61C5/50
- WIPO fieldMedical technology
- WIPO sectorInstruments
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.