Gum tissue retraction device and method
US5676543A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 8, 1995 |
| Grant date | Oct 14, 1997 |
| Priority date | — |
| Expiry date | Mar 8, 2015 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61C9/0033
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A moldable material formed over teeth with a second flowable material containing an astringent placed into the impression of the teeth in the moldable material providing retraction and hemostasis at the gum line. A moldable material, preferably a silicone, may contain an astringent such as aluminum ammonium sulfate is made into a mold of teeth. The impression formed in the mold of the teeth is filled with a less viscous or initially flowable material also containing an astringent. The mold with the flowable material is placed over the teeth. The initially flowable material preferably sets into a solid. The flowable material may be made of a condensation silicone having a base and catalyst. The mold helps to apply pressure to the flowable material which is transmitted to the gum tissue resulting in retraction and hemostasis.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.