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US 12,492,144 B2Granted
Method for manufacturing a multi-color dental restoration
AssigneeIvoclar Vivadent AG
InventorsChristian Ritzberger, Marc Dittmer, Markus Rampf, Christian Niedrig
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Abstract
A process for the preparation of multi-coloured dental restorations is described, in which glasses and glass ceramics with various compositions are given the shapes of dental restorations and colour changes are effected in the glasses and glass ceramics by irradiating them with artificial electromagnetic radiation and subjecting them to a heat treatment.
Claims22
A process for the preparation of a multi-coloured dental restoration, which process comprises
- a) giving a glass or a glass ceramic the shape of a dental restoration, and
- b) irradiating at least one part of the glass or the glass ceramic with artificial electromagnetic radiation and subjecting this irradiated part to a heat treatment to effect a colour change in at least one part,
- wherein the glass and the glass ceramic comprise at least one oxidizable component, at least one reducible colouring component, and P2O5 and
- wherein the radiation has a wavelength in the range of 100 to 360 nm.
1 more element
Dependencies are inferred from the claim text.