A dental polymerizable composition comprising: a (meth)acrylic acid ester polymer (a) comprising a (meth)acrylic acid ester homopolymer having a glass transition temperature of 25°C to 50°C and/or a random copolymer of a (meth)acrylic acid ester whose homopolymer has a glass transition temperature higher than 37°C and a (meth)acrylic acid ester whose homopolymer has a glass transition temperature lower than 37°C, the (meth)acrylic acid ester polymer (a) having a glass transition temperature of 25°C to 50°C, having tan δ at 37°C of 0.10 or more as determined by dynamic mechanical analysis, and having no melting point; a polymerizable monomer (b) comprising a polyfunctional (meth)acrylic acid ester; and a polymerization initiator (c), wherein the (meth)acrylic acid ester for forming the (meth)acrylic acid ester homopolymer having a glass transition temperature of 25°C to 50°C comprises n-propyl methacrylate, n-butyl methacrylate, iso-butyl methacrylate, neopentyl methacrylate, phenethyl methacrylate, N,N-dimethylaminoethyl methacrylate, or glycidyl methacrylate, the (meth)acrylic acid ester whose homopolymer has a glass transition temperature higher than 37°C comprises methyl methacrylate, ethyl methacrylate, iso-propyl methacrylate, sec-butyl methacrylate, tert-butyl (meth)acrylate, iso-butyl methacrylate, cyclohexyl methacrylate, adamantyl (meth)acrylate, isobornyl (meth)acrylate, phenyl methacrylate, benzyl methacrylate, phenoxyethyl methacrylate, 2-hydroxyethyl methacrylate, 2-hydroxypropyl methacrylate, or tetrahydrofurfuryl methacrylate, the (meth)acrylic acid ester whose homopolymer has a glass transition temperature lower than 37°C comprises n-butyl (meth)acrylate, n-hexyl (meth)acrylate, pentyl (meth)acrylate, 2-ethylhexyl (meth)acrylate, octyl (meth)acrylate, decyl (meth)acrylate, dodecyl (meth)acrylate, methoxyethyl (meth)acrylate, ethoxyethyl (meth)acrylate, butoxyethyl (meth)acrylate, N,N-dimethylaminoethyl (meth)acrylate, or sec-butyl acrylate, the dental polymerizable composition comprises a mixture of the polymerizable monomer (b) and the polymerization initiator (c), and the (meth)acrylic acid ester polymer (a) is dissolved in the polymerizable monomer (b). a (meth)acrylic acid ester polymer (a) comprising a (meth)acrylic acid ester homopolymer having a glass transition temperature of 25°C to 50°C and/or a random copolymer of a (meth)acrylic acid ester whose homopolymer has a glass transition temperature higher than 37°C and a (meth)acrylic acid ester whose homopolymer has a glass transition temperature lower than 37°C, the (meth)acrylic acid ester polymer (a) having a glass transition temperature of 25°C to 50°C, having tan δ at 37°C of 0.10 or more as determined by dynamic mechanical analysis, and having no melting point; a polymerizable monomer (b) comprising a polyfunctional (meth)acrylic acid ester; and a polymerization initiator (c), wherein the (meth)acrylic acid ester for forming the (meth)acrylic acid ester homopolymer having a glass transition temperature of 25°C to 50°C comprises n-propyl methacrylate, n-butyl methacrylate, iso-butyl methacrylate, neopentyl methacrylate, phenethyl methacrylate, N,N-dimethylaminoethyl methacrylate, or glycidyl methacrylate, the (meth)acrylic acid ester whose homopolymer has a glass transition temperature higher than 37°C comprises methyl methacrylate, ethyl methacrylate, iso-propyl methacrylate, sec-butyl methacrylate, tert-butyl (meth)acrylate, iso-butyl methacrylate, cyclohexyl methacrylate, adamantyl (meth)acrylate, isobornyl (meth)acrylate, phenyl methacrylate, benzyl methacrylate, phenoxyethyl methacrylate, 2-hydroxyethyl methacrylate, 2-hydroxypropyl methacrylate, or tetrahydrofurfuryl methacrylate, the (meth)acrylic acid ester whose homopolymer has a glass transition temperature lower than 37°C comprises n-butyl (meth)acrylate, n-hexyl (meth)acrylate, pentyl (meth)acrylate, 2-ethylhexyl (meth)acrylate, octyl (meth)acrylate, decyl (meth)acrylate, dodecyl (meth)acrylate, methoxyethyl (meth)acrylate, ethoxyethyl (meth)acrylate, butoxyethyl (meth)acrylate, N,N-dimethylaminoethyl (meth)acrylate, or sec-butyl acrylate, the dental polymerizable composition comprises a mixture of the polymerizable monomer (b) and the polymerization initiator (c), and the (meth)acrylic acid ester polymer (a) is dissolved in the polymerizable monomer (b).