Appliance for use in applying filler material to an endodontically prepared root canal
US4894011A · kind A · utility
Inventor
Key dates
| Filing date | Nov 2, 1988 |
| Grant date | Jan 16, 1990 |
| Priority date | — |
| Expiry date | Nov 2, 2008 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61C5/50
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An improved appliance for use in applying filler material, such as gutta-percha or the like, to an endodontically prepared root canal of a tooth in the form of an elongated shaft of material having high biological tolerance, the shaft having a handle portion at the proximal end portion, the shaft distal end portion having a surface configuration adaptable to retain filler material formed thereon and being positionable in a root canal, the shaft distal and proximal portion being severable from each other whereby the distal portion and filler material therein remain in the root canal. In the preferred arrangement the shaft distal portion surface is defined by a spiral groove.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.