Method of masking a dental support structure of a dental prosthesis made of highly translucent ceramic material
US12268761B2 · kind B2 · utility
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7Claims
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Key dates
| Filing date | May 6, 2024 |
| Grant date | Apr 8, 2025 |
| Priority date | — |
| Expiry date | May 6, 2044 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B2235/9661
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A method for masking the appearance of a support structure underlying a highly translucent ceramic dental restoration is provided. The porous form of a zirconia ceramic dental restoration is treated with a liquid masking composition comprising 0.4 wt % to 50 wt % of one or more masking agents. The masking composition is applied to the internal surface of a restoration and a region of the facial surface of the restoration that is opposite the internal surface. After application of the masking compositions, treated zirconia restoration is sintered to greater than 98% theoretical density.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.