Dental crown form
US4129946A · kind A · utility
78Cited by
4References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 17, 1977 |
| Grant date | Dec 19, 1978 |
| Priority date | — |
| Expiry date | Feb 17, 1997 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61C5/77
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A dental crown form or strip crown for holding and shaping a body of composite resin material being applied to an anterior tooth requiring restoration. The crown form is a thin hollow body with an interior surface conforming to the shape of a natural tooth. A tab is integrally formed at the base or gingival end of the crown form, and the tab extends away from the base to provide a gripping handle for the crown and a surface for displaying a designation of the tooth of intended use. A flange is integrally formed around the base to strengthen and rigidify the crown form which is preferably made of co-polyester plastic.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.