PROBLEM TO BE SOLVED: To provide a dental composition having little color tone change between before and after its curing and little color tone change after the curing, and also excellent in thin layer surface curability.SOLUTION: This dental composition is provided by containing at least a 0.01 to 10 pts.wt. visible light photopolymerization catalytic compound (a), a &ge1 kind of di(meth)acrylate compound (b) expressed by formula (I) [wherein, R1, R2 are each independently H or methyl and the number of recurring units (n) of ethylene oxide groups is 9 to 50] and/or a multi-functional monomer.COPYRIGHT: (C)2009,JPO&INPIT【課題】硬化前後における色調変化が少なく、硬化後の色調変化が少なく、かつ、薄層表面硬化性に優れた歯科用組成物を提供すること。【解決手段】少なくとも1種以上の(a)可視光光重合触媒化合物0.01~10重量部と、(b)1種以上の一般式(I):【化1】(式中、R1およびR2はそれぞれ独立して水素またはメチル基であり、エチレンオキサイド基の繰り返し単位数nは9~50である)で表されるジ(メタ)アクリレート化合物、および/または多官能モノマーを含む歯科用組成物。【選択図】なし
