Lithium silicate-wollastonite glass ceramic
AssigneeIvoclar Vivadent AG
InventorsMarc Dittmer, Wolfram Höland, Markus Rampf, Marcel Schweiger
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Abstract
Lithium silicate-wollastonite glass ceramics are described which are characterized by a controllable translucence and can be easily machined and therefore can be used in particular as restoration material in dentistry.
Claims22
Lithium silicate-wollastonite glass ceramic, which comprises 1.0 to 7.0 wt.-% P2O3 and comprises lithium silicate as a crystal phase and wollastonite as a further crystal phase.
Lithium silicate-wollastonite glass ceramic, which comprises lithium silicate as a crystal phase and wollastonite and lithium phosphate as further crystal phases.
Starting glass, which comprises 1.0 to 7.0 wt.-% P2O5 and comprises nuclei for the crystallization of lithium silicate as a crystal phase and wollastonite as a further crystal phase.
Process for the preparation of a dental restoration comprising a bridge, inlay, onlay, veneer, abutment, partial crown, crown or facet, in which a lithium silicate-wollastonite glass ceramic, which comprises lithium silicate as a crystal phase and wollastonite as a further crystal phase, is given the shape of the desired dental restoration by pressing or machining.
Dependencies are inferred from the claim text.