公开(公告)号：EP3013762A1

公开(公告)日：2016-05-04

申请号：EP14733221.7

申请日：2014-06-27

申请人： Queen Mary and Westfield College University of London

发明人： THEOCHAROPOULOS, Antonios ,  CHEN, Xiaohui ,  KARPUKHINA, Natalia ,  HILL, Robert ,  CATTELL, Mike

IPC分类号： C03C3/087 ,  C03C3/091 ,  C03C4/00 ,  C03C10/00

CPC分类号： C03C10/0018 ,  A61K6/026 ,  C03B32/02 ,  C03C3/087 ,  C03C3/091 ,  C03C4/0021 ,  C03C10/0045 ,  C03C10/0054

摘要： A leucite glass-ceramic is prepared from a glass comprising: about 66.8 to about 71.9 mol % of SiO2, about 8.5 to about 10.6 mol % of Al2O3, about 9.5 to about 12.8 mol % of K2O, about 0.5 to about 4.0 mol % of CaO, about 0 to about 3.0 mol % of TiO2, about 1.8 to about 4.0 mol % of Na2O, about 0.1 to about 6.0 mol % of Li2O, about 0 to about 1.0 mol % of MgO, about 0 to about 3.0 mol % of Nb2O5, and about 0 to about 3.0 mol % of B2O3. The leucite glass-ceramic is prepared by subjecting the glass components to a nucleation heat treatment, followed by a growth heat treatment. The leucite glass-ceramic may be used in the fabrication of a Dental restoration using various processes, and may be used in the construction of Dental restorations such as ceramic Dental inlays, crowns, veneers, bridges, veneering materials for zirconium oxide restoration substrates, alumina oxide restoration substrates, or metal restoration substrates.