Patent ID: 8592330
Filing Date: 2013-11-26
Classification: A61K,C03B,C03C,C04B

Abstract:
1. Method for veneering dental restorations comprising yttrium-stabilized zirconium dioxide with a veneer ceramic comprising the following components and comprising lithium disilicate as a main crystal phase, characterized by the following method steps: a) a glass fused at 1530° C. and comprising the following components  is fritted in water; b) the fritted glass is tempered for nucleation at a temperature of 500° C. to 680° C. for 2 to 6 hours; c) after cooling, the tempered glass is mechanically pulverized; d) the pretreated powder is converted to paste with the addition of water; e) the paste is applied to the restorations comprising yttrium-stabilized zirconium dioxide and  f) is then subjected to a heat treatment at 800° C. to 940° C., wherein lithium disilicate is crystallized out as main crystal phase to form the veneer ceramic.