Ceramic orthodontic bracket
US4915625A · kind A · utility
21Cited by
3References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 30, 1988 |
| Grant date | Apr 10, 1990 |
| Priority date | — |
| Expiry date | Jun 30, 2008 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B35/49
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A ceramic orthodontic bracket having an unobtrusive color, is obtained by sintering a molded body of a powdery mixture composed of 2-15 mole % of yttrium oxide, 5-20 mole % of titanium dioxide and the balance of zirconia.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.