High translucent dental zirconia blank and sintered body
US10463457B2 · kind B2 · utility
2Cited by
25References
16Claims
0Family size
Inventors
Key dates
| Filing date | Apr 4, 2018 |
| Grant date | Nov 5, 2019 |
| Priority date | — |
| Expiry date | Apr 4, 2038 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/24967
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A dental block for producing a dental prosthesis comprises a green body including zirconia and having a chemical composition comprising between 6.0 wt % to 20 wt % of yttria (Y2O3). The green body is subsequently sinterable, with regular sintering in air and with no post HIP processing, to product a translucent sintered body with a total light transmittance of at least 36% to light with a wavelength of 400 nm at a thickness of 0.6 mm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.