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AssigneeIvoclar Vivadent AG
InventorsSebastian Krolikowski, Markus Rampf, Christian Ritzberger, Harald Bürke, Wolfram Höland, Marcel Schweiger
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The invention relates to a method for the preparation of a lithium silicate glass or a lithium silicate glass ceramic which comprise cerium ions and are suitable in particular for the preparation of dental restorations, the fluorescence properties of which largely correspond to those of natural teeth. The invention also relates to a lithium silicate glass and a lithium silicate glass ceramic which can be obtained using the method according to the invention, the use thereof as dental material and in particular for the preparation of dental restorations, as well as a glass-forming composition which is suitable for use in the method according to the invention.
Method for the preparation of a lithium silicate glass, a lithium silicate glass with nuclei which are suitable for forming lithium metasilicate and/or lithium disilicate crystals, or a lithium silicate glass ceramic, which comprises a step in which a melt of a starting glass is formed from a glass-forming composition which comprises SiO2, Li2O, nucleating agent, a cerium compound and at least one reducing agent.
Glass-forming composition which comprises SiO2, Li2O, nucleating agent, a cerium compound and at least one reducing agent.
Dependencies are inferred from the claim text.