ABSTRACT OF THE DISCLOSURE A dental composite material comprising (A) a polymerizable monomer, (B) a filler comprising at least one heat-treated aggregate of silica and at least one metal oxide other than silica, wherein the aggregate has an average particle size of 0.5-30 &mgr;m, a refractive index of 1.46-1.65, a pore volume of 0.1-1.0 cc/g, a BET specific surface area of 50-500 m
2
/g, and a primary particle size of 1-250 nm, and (C) a polymerization initiator. The dental composite material of the present invention can satisfy various kinds of properties required as a dental composite material simultaneously.
发明概述 一种牙科复合材料,包括 (A) 可聚合单体,(B) 由至少一种
二氧化硅和至少一种
二氧化硅以外的金属氧化物热处理集合体组成的填料,其中集合体的平均粒径为 0.5-30 &mgr;m,折射率为 1.46-1.65,孔体积为 0.1-1.0 cc/g,BET 比表面积为 50-500 m
2
/g,主粒径为 1-250 nm,以及 (C) 聚合
引发剂。本发明的牙科复合材料可同时满足牙科复合材料所需的各种性能。