IP Library › Granted Patent US 10,765,496
Granted Patent B2
US 10,765,496 · App. 16/227,429 · Granted Sep 8, 2020

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

Inventors: Bernhard Durschang (Rottendorf, DE); Jörn Probst (Kürnach, DE); Norbert Thiel (Bad Säckingen, DE); Joachim Bibus (Bad Säckingen, DE); Markus Vollmann (Gelnhausen, DE); Udo Schusser (Alzenau, DE)
Assignees: FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V.; VITA ZAHNFABRIK H. RAUTER GMBH & CO. KG; DEGUNDENT GMBH
A61C13/0006A61C5/35A61C5/70A61C5/77A61C13/01A61C13/083A61K6/818A61K6/82A61K6/833C03B32/02C03C3/097C03C4/0021C03C10/0027
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Quick Facts
Patent No.
US 10,765,496
App. No.
16/227,429
Granted
Sep 8, 2020
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 crystallisation and, after complete crystallisation, 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 (2)

1. A lithium silicate glass ceramic that includes at least 10 wt % ZrO 2 , from 55 to 70 wt % SiO 2 , and from 10 to 15 wt % LiO 2 and having a main crystal phase consisting of lithium disilicate crystal.

2. Lithium silicate glass ceramic of claim 1 , which is in the form of a dental restoration.

Priority Claims (1)
DE 10 2009 060 274 · Dec 23, 2009 · national
Continuity (3)
Continuation 14274235 · May 9, 2014
Continuation 13518765
Related Publication 20190142556A1 · May 16, 2019
Cited By (2)
US 12,371,367 US 12,391,604