Matrix ring for tooth restoration
US8899979B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 28, 2013 |
| Grant date | Dec 2, 2014 |
| Priority date | — |
| Expiry date | May 15, 2033 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61C5/82
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A matrix ring includes a biasing ring and a pair of opposing tines. The biasing ring includes a substantially hoop-like configuration terminating at two opposing ends. The pair of opposing tines extend inwardly from each of the two ends of the biasing ring toward each other. Each of the pair of opposing tines is coupled to the respective opposing end about a central region thereof and extends radially outwardly therefrom. Each tine includes a flame body having a central ridge and opposing lower extensions, the lower extensions terminating at an exposed face. The portion of the lower extensions proximate the exposed face being able to move relative to the rest of the flame body so as to better position on the teeth of a patient. A superimposed pad over portions of the flame body provides a deformable surface for engagement with the surface of the tooth of a patient.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.