Lithium silicate glass ceramic with easy machinability
Grant
US12577149B2
Kind: B2
Mar 17, 2026
Assignee
Ivoclar Vivadent AG
Inventors
Christian Ritzberger
Abstract
A lithium silicate glass ceramic having lithium metasilicate as main crystal phase and having not more than 30 wt.-% of lithium metasilicate crystals and having the following components in the amounts indicated: ComponentWt.-%SiO271.0 to 82.0Li2O6.0 to 14.0MeI2O4.0 to 15.0Al2O32.0 to 10.0P2O50.5 to 7.0,wherein MeI2O is selected from Na2O, K2O, Rb2O, Cs2O and mixtures thereof, andwherein the molar ratio of SiO2 to Li2O is in the range of 2.5 to 5.0.
CPC Classifications
C03C 10/00
C03C 4/0021
C03C 2204/00
C03C 10/0009
C03C 3/097
C03C 10/0027
A61C 13/083
A61C 13/0004
C03B 32/02
A61K 6/802
Filing Date
2022-08-19
Application No.
17821111
Claims
18