Patent ID: 9604873
Date: 2017-03-28
CPC Classifications: A61C,A61K,C03B,C03C,G01J

Claim:
1. A lithium silicate glass-ceramic having lithium disilicate as main crystal phase, comprising: 58 to 64% by weight of SiO 11 to 13% by weight of Li 10 to 15% by weight of a stabiliser selected from the group consisting of ZrO 2 to 5% by weight of K 2 to 5% by weight of Al 0 to 5% by weight of additives selected from the group consisting of boron oxide, phosphorus oxide, fluorine, sodium oxide, barium oxide, strontium oxide, magnesium oxide, zinc oxide, calcium oxide, yttrium oxide, titanium oxide, niobium oxide, tantalum oxide, lanthanum oxide and mixtures thereof, and 0 to 10% by weight of colourants.