PROBLEM TO BE SOLVED: To achieve both the inhibition of polymerization shrinkage and improvement in mechanical strength at high levels.SOLUTION: This invention provides a dental polymerizable monomer represented by general formula (1) and a dental composition, a dental curable composition and a dental filling/restoration kit prepared using the same. In the general formula (1), X is an n-valent 2-100C hydrocarbon group, n is an integer selected from the range of 2-4, and Ris hydrogen or a methyl group.