Glass Ceramic Having SiO2 As Main Crystal Phase
AssigneeIvoclar Vivadent AG
InventorsMarkus Rampf, Marc Dittmer, Christian Ritzberger, Marcel Schweiger, Wolfram Höland
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Abstract
Glass ceramics having SiO2 as main crystal phase and precursors thereof are described which are characterized by very good mechanical and optical properties and in particular can be used as restoration material in dentistry.
Claims20
Process for the preparation of a dental restoration comprising a bridge, inlay, onlay, veneer, abutment, partial crown, crown or facet, in which a glass ceramic which comprises the following components
- Component
- wt.-%
- SiO2
- 58.0 to 92.0
- Li2O
- 2.0 to 10.0
- and comprises SiO2 as main crystal phase is given the shape of the desired dental restoration.
Process for the preparation of a dental restoration comprising a bridge, inlay, onlay, veneer, abutment, partial crown, crown or facet, in which a starting glass which comprises the following components
- Component
- wt.-%
- SiO2
- 58.0 to 92.0
- Li2O
- 2.0 to 10.0
- and comprises nuclei for the crystallization of SiO2 is given the shape of the desired dental restoration.
Dependencies are inferred from the claim text.