A two-paste dental curable composition comprising: a first agent comprising a polymerizable monomer (a) having an acid group, a polymerizable monomer (b) having no acid group, a polymerization initiator (c), and a filler (d); and a second agent comprising a polymerizable monomer (b) having no acid group, at least one filler (e) selected from the group consisting of lanthanum glass, barium glass, strontium glass, soda glass, zinc glass, fluoroaluminosilicate glass and alumina, a polymerization accelerator (f), and a silane coupling agent (g) represented by the following general formula: wherein X represents a polymerizable functional group selected from the group consisting of a (meth)acryloxy group, a vinyl group, and an epoxy group, R 1 represents a divalent aliphatic group optionally having an ether group, ester group, amide group, sulfonyl group, urethane group, thioether group, alkylene group having 1 to 20 carbon atoms, alkenylene group having 2 to 20 carbon atoms, or alkynylene group having 2 to 20 carbon atoms and having a linear chain having a carbon chain length of 5 or more or a divalent aromatic group optionally having an ether group, ester group, amide group, sulfonyl group, urethane group, thioether group, alkylene group having 1 to 20 carbon atoms, alkenylene group having 2 to 20 carbon atoms, or alkynylene group having 2 to 20 carbon atoms and having 6 or more carbon atoms, R 2, R 3, and R 4 are each independently a hydroxy group, an alkyl group having 1 to 5 carbon atoms, or an alkoxy group having 1 to 5 carbon atoms, and at least one of R 2, R 3, and R 4 is an alkoxy group having 1 to 5 carbon atoms. a first agent comprising a polymerizable monomer (a) having an acid group, a polymerizable monomer (b) having no acid group, a polymerization initiator (c), and a filler (d); and a second agent comprising a polymerizable monomer (b) having no acid group, at least one filler (e) selected from the group consisting of lanthanum glass, barium glass, strontium glass, soda glass, zinc glass, fluoroaluminosilicate glass and alumina, a polymerization accelerator (f), and a silane coupling agent (g) represented by the following general formula: wherein X represents a polymerizable functional group selected from the group consisting of a (meth)acryloxy group, a vinyl group, and an epoxy group, R 1 represents a divalent aliphatic group optionally having an ether group, ester group, amide group, sulfonyl group, urethane group, thioether group, alkylene group having 1 to 20 carbon atoms, alkenylene group having 2 to 20 carbon atoms, or alkynylene group having 2 to 20 carbon atoms and having a linear chain having a carbon chain length of 5 or more or a divalent aromatic group optionally having an ether group, ester group, amide group, sulfonyl group, urethane group, thioether group, alkylene group having 1 to 20 carbon atoms, alkenylene group having 2 to 20 carbon atoms, or alkynylene group having 2 to 20 carbon atoms and having 6 or more carbon atoms, R 2, R 3, and R 4 are each independently a hydroxy group, an alkyl group having 1 to 5 carbon atoms, or an alkoxy group having 1 to 5 carbon atoms, and at least one of R 2, R 3, and R 4 is an alkoxy group having 1 to 5 carbon atoms.