Light-curable composition, denture, and plate denture

A light-curable composition to be used in, inter alia, stereolithographic production of dental prostheses, containing a (meth)acrylic monomer component and a photopolymerization initiator. The (meth)acrylic monomer component includes an acrylic monomer (X) of Mw 400-580 having two aromatic rings and two acryloyloxy groups per molecule and at least one of a (meth)acrylic monomer (A) of Mw 200-400 having one or more ether bonds and two (meth)acryloyloxy groups per molecule, a (meth)acrylic monomer (B) of Mw 130-240 having a ring structure other than an aromatic ring and one (meth)acryloyloxy group per molecule, and a (meth)acrylic monomer (C) of Mw 190-280 having a hydrocarbon backbone and two (meth)acryloyloxy groups per molecule. 本发明提供种光固化性组合物，其用于通过光造型来制作牙科修复体等，所述光固化性组合物含有(甲基)丙烯酸类单体成分和光聚合引发剂，上述(甲基)丙烯酸类单体成分包含：在1分子中具有2个芳香环和2个丙烯酰基氧基的Mw为400～580的丙烯酸类单体(X)；以及，在1分子中具有1个以上醚键和2个(甲基)丙烯酰基氧基的Mw为200～400的(甲基)丙烯酸类单体(A)、在1分子中具有芳香环以外的环结构和1个(甲基)丙烯酰基氧基的Mw为130～240的(甲基)丙烯酸类单体(B)、和在1分子中具有烃骨架及2个(甲基)丙烯酰基氧基的Mw为190～280的(甲基)丙烯酸类单体(C)中的