A light curable dental composition is provided. The composition comprises an ethylenic unsaturated compound and a light polymerization initiator. The light polymerization initiator is selected from a combination of an organic peroxide and a pyrylium salt compound of:
wherein R,, R2 and R, each represents a hydrogen atom, an alkyl group and the like, X stands for an oxygen or sulfur atom and Y for an anionic functional group; a polyperoxy ester containing a benzophenone group; and a combination the polyperoxy ester and an a-diketone.
本发明提供了一种光固化牙科组合物。 该组合物由
乙烯基不饱和化合物和光聚合
引发剂组成。 光聚合
引发剂选自有机过氧化物和
吡鎓盐化合物的组合:其中 R、R2 和 R 分别代表氢原子、烷基等,X 代表氧原子或
硫原子,Y 代表阴离子官能团;含有
二苯甲酮基团的聚过氧酯;以及聚过氧酯和 a-二酮的组合。