IP Library › Granted Patent US 10,219,879
Granted Patent B2
US 10,219,879 · App. 14/274,235 · Granted Mar 5, 2019

Lithium disilicate glass-ceramic, method for production thereof and use thereof

Inventors: Bernhard Durschang (Rottendorf, DE); Jörn Probst (Kümach, DE); Norbert Thiel (Bad Säckingen, DE); Joachim Bibus (Bad Säckingen, DE); Markus Vollmann (Gelnhausen, DE); Udo Schusser (Alzenau, DE)
Assignees: DEGUDENT GMBH; FRAUNHOFER-GESELLSCHAFT ZUR FORDERUNG DER ANGEWANDTEN FORSCHUNG E.V.; VITA ZAHNFABRIK H. RAUTER GMBH & CO. KG
A61C13/0006A61C5/35A61C5/70A61C5/77A61C13/01A61C13/083A61K6/024A61K6/0245A61K6/0273C03B32/02C03C3/097C03C4/0021C03C10/0027
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Quick Facts
Patent No.
US 10,219,879
App. No.
14/274,235
Granted
Mar 5, 2019
Kind
B2
Abstract

The invention relates to glass-ceramics based on the lithium silicate system which can be mechanically machined easily in an intermediate step of crystallization and, after complete crystallization, represent a very strong, highly-translucent and chemically-stable glass-ceramic. Likewise, the invention relates to a method for the production of these glass-ceramics. The glass-ceramics according to the invention are used as dental material.

Claims (3)

1. A lithium silicate glass ceramic comprising at least 10 wt. % ZrO 2 and having a main crystal phase, wherein said main crystal phase is selected from the group consisting of lithium metasilicate crystal and lithium disilicate crystal.

2. The lithium silicate glass ceramic of claim 1 , wherein the lithium silicate glass ceramic is present in the form of a dental restoration.

3. The lithium silicate glass ceramic of claim 1 , wherein the lithium silicate glass ceramic is in the form of an inlay, an onlay, a bridge, a pin construction, a veneer, or a crown.

Priority Claims (1)
DE 10 2009 060 274 · Dec 23, 2009 · national
Continuity (2)
Continuation 13518765
Related Publication 20140249016A1 · Sep 4, 2014