| abstract |
The present invention inhibits the coloration and discoloration of hardened materials better than curable compositions for dentistry which use dendritic polymers of the prior art. This curable composition for dentistry contains a radical polymerizable monomer, a polymerization initiator, and a hyperbranched polymer, said hyperbranched polymer comprising the unit structure represented by general formula I, and the unit structure represented by general formula IIA and/or formula IIB. [In general formula I: A is a single bond that bonds C and R 1 , and is > C=O, -O- or -COO-; R 1 is a divalent saturated aliphatic hydrocarbon group or a divalent aromatic hydrocarbon group; and R 2 is a hydrogen atom or a methyl group. In general formula IIA and general formula IIB: R 3 , R 4 and R 5 are each a hydrogen atom, an alkyl group, an alkoxycarbonyl group, an aryl group, or a cyano group; and R 6 is an alkylene group.] |