Porcelain fused to metal crown
US4104798A · kind A · utility
20Cited by
2References
13Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Jul 21, 1976 |
| Grant date | Aug 8, 1978 |
| Priority date | — |
| Expiry date | Jul 21, 1996 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K6/844
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
An improved porcelain fused to metal crown having a composite structure comprising layers of a bonding agent and ceramics and optionally a mixture of a bonding agent and ceramics and/or a mixture of ceramics and a porcelain, which are thermally sprayed around the metal crown, and a layer of fused porcelain formed on the above layers. The porcelain fused to the metal crown is useful for restoration of a defective tooth crown as an artificial tooth crown.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.