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US 11,905,207 B2Granted
Fluorescent glass ceramics and glasses with europium content
AssigneeIvoclar Vivadent AG
InventorsMarc Dittmer, Ronny Hengst, Christian Ritzberger
Life of this patent
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Abstract
The invention relates to glass ceramics and glasses with a europium content, containing the following components: Component wt.-% SiO2 30.0 to 75.0 Al2O3 10.0 to 45.0 Europium, calculated as Eu2O3 0.05 to 5.0 and which are suitable in particular for the production of dental restorations, the fluorescence properties of which largely correspond to those of natural teeth.
Claims15
Glass with europium content, which comprises the following components:
- Component
- wt.-%
- SiO2
- 30.0 to 75.0
- Al2O3
- 20.0 to 45.0
- Europium, calculated as Eu2O3
- 0.05 to 5.0.
- wherein the glass is present in the form of a powder, a granulate, a blank or a dental restoration.
6 more elements
Glass with europium content, which comprises the following components:
- Component
- wt. −%
- SiO2
- 30.0 to 75.0
- Al2O3
- 20.0 to 45.0
- Europium,
- 0.05 to 5.0,
- calculated
- as Eu2O3
- and comprises 8.0 to 30.0 wt.-% oxide selected from CaO and SrO,
- wherein the glass is present in the form of a powder, a granulate, a blank or a dental restoration.
9 more elements
Glass with europium content, which comprises the following components:
- Component wt.-%
- SiO2 30.0 to 75.0
- Al2O3 15.0 to 45.0
- Europium, calculated as Eu2O3 0.05 to 5.0,
- and comprises nuclei for the crystallization of an aluminosilicate,
- wherein the glass is present in the form of a powder, a granulate, a blank or a dental restoration.
3 more elements
Dependencies are inferred from the claim text.