Composition and method for generating a shade gradient in zirconia dental restoration
US11939272B2 · kind B2 · utility
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2References
6Claims
0Family size
Assignee
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Key dates
| Filing date | Mar 19, 2019 |
| Grant date | Mar 26, 2024 |
| Priority date | — |
| Expiry date | Apr 15, 2040 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B2235/9661
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Disclosed are compositions and methods for bleaching and optionally coloring a shaded zirconia, particularly mono-chromatic pre-shaded dental zirconia. The compositions and methods are useful in generating a shade gradient in milled dental restorations. The compositions comprise metal salts or complex dissolved in a solvent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.