| 摘要 |
PROBLEM TO BE SOLVED: To ameliorate the sunlight stability (resistance to discoloration) of a dental repair material using a photopolymerization initiator comprising an aromatic amine compound and an s-triazine compound such as a system of anα-diketone/an aromatic amine compound/an aliphatic amine compound/a trihalomethyl group-substituted s-triazine compound. SOLUTION: In the photopolymerizable dental repair material comprising a radical polymerizable monomer (A), a photopolymerization initiator (B) comprising a triazine compound (B1) substituted by a trihalomethyl group and an aromatic amine compound (B2) as its components, and (C) an ultraviolet absorber, a benzotriazole-based ultraviolet absorber such as 2-(2-hydroxyphenyl)benzotriazole and 2-(2-hydroxy-5-methylphenyl)benzotriazole is used as the ultraviolet absorber (C). The amount of discoloration of the dental repair material comes to about one third of that of a dental repair material using a benzophenone-based ultraviolet absorber to enable the dental repair material maintaining aesthetics for a long time. COPYRIGHT: (C)2006,JPO&NCIPI
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