Masking compositions for milled lithium-silicate glass-ceramic dental restorations and method for making same
US12102698B2 · kind B2 · utility
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3References
26Claims
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Key dates
| Filing date | Nov 18, 2020 |
| Grant date | Oct 1, 2024 |
| Priority date | — |
| Expiry date | Dec 26, 2042 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09D7/41
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Masking compositions useful for dental restoration, particularly masking compositions used as a coating to mask the unnatural color of milled lithium-silicate glass-ceramic dental restorations in soft states before crystallization cycle, and method of making same. Some embodiments relate to masking compositions comprising at least one glaze powder, at least one opacifier, and at least one colorant. Some embodiments relate to coating, drying, cooling, characterizing, and firing of dental restorations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.