公开(公告)号：US20240000670A1

公开(公告)日：2024-01-04

申请号：US18252802

申请日：2021-10-22

申请人： TOKUYAMA DENTAL CORPORATION

发明人： Hiroshi Hara ,  Akari Hashimoto ,  Kei Nakashima

IPC分类号： A61K6/818 ,  A61C13/00 ,  A61C13/083 ,  A61K6/822

CPC分类号： A61K6/818 ,  A61C13/0006 ,  A61C13/083 ,  A61K6/822

摘要： Provided are a zirconia dental mill blank and a manufacturing method therefor, said mill bank having a to-be-cut part composed of a composite material, which includes fine particles of an inorganic oxide (excluding zirconium oxide, an inorganic oxide functioning as a stabilizer, and aluminum oxide) and a matrix composed of a temporarily sintered body of a crystalline zirconium oxide powder containing a stabilizer and an aluminum oxide additive, wherein the temporarily sintered body is a microporous temporarily sintered body having a relative density of 45-65% and having pores opened outward, and the fine particles of the inorganic oxide are held in the pores of the microporous temporarily sintered body. Moreover, provided are a method for manufacturing a dental zirconia ceramic prosthesis, and a method for manufacturing an article composed of a zirconia composite ceramic.