Endodontic procedure and instrument
US5302129A · kind A · utility
Inventors
Key dates
| Filing date | Nov 19, 1991 |
| Grant date | Apr 12, 1994 |
| Priority date | — |
| Expiry date | Nov 19, 2011 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61C5/55
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An endodontic procedure is disclosed which involves extirpating a root canal of a tooth, and then inserting a machine driven compactor which is coated with alpha phase gutta percha into the extirpated canal. The compactor is then rotated at a relatively high speed and so that the alpha phase gutta percha is plasticized solely by the frictional heat generated by the rotating compactor. The plasticized gutta percha is thrown radially outwardly, and pushed downwardly, so as to fill all of the voids of the canal, and the compactor is then withdrawn and the gutta percha cools and solidifies. A crown may be then fitted to the tooth above the gutta percha in the conventional manner.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.