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US 11,440,833 B2Granted
Fluorescent glass ceramics and glasses with cerium and tin content
AssigneeIvoclar Vivadent AG
InventorsRonny Hengst, Marc Dittmer
Life of this patent
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Abstract
The invention relates to glass ceramics and glasses with cerium and tin content, which comprise the following components: Component wt.-% SiO2 42.0 to 80.0 Al2O3 0.1 to 42.0 Cerium, calculated as CeO2 0.5 to 10.0 Tin, calculated as SnO 0.1 to 4.0 and which are suitable in particular for the preparation of dental restorations, the fluorescence properties of which largely correspond to those of natural teeth.
Claims18
Glass ceramic with cerium and tin content, which comprises the following components:
- Component
- wt.-%
- SiO2
- 42.0 to 80.0
- Al2O3
- 0.1 to 42.0
- Cerium, calculated as CeO2
- 0.5 to 10.0
- Tin, calculated as SnO
- 0.1 to 4.0
- wherein the molar ratio of cerium, calculated as CeO2, to tin, calculated as SnO, lies in the range of from 10:1 to more than 1:1.
8 more elements
Dependencies are inferred from the claim text.