The dental composition of the invention comprises coating a polymerizable monomer (A), the silica-based particles, the surface of the silica fine particles, a zirconium atom, an oxide containing silicon and oxygen atoms, fillers are amorphous 1~20μm an average particle diameter (B), and includes inorganic particles having an average particle 0.1~1.0μm diameter (C),. Here, (A) per 100 parts by weight of the polymerizable monomer, and 50 to 400 parts by weight of filler (B), it contains 100 to 400 parts by weight of the inorganic particles (C).本発明の歯科用組成物は、重合性単量体(A)、シリカ系微粒子と、当該シリカ系微粒子の表面を被覆する、ジルコニウム原子、珪素原子及び酸素原子を含有する酸化物とを含み、平均粒子径が1~20μmである非晶質の充填材(B)、及び、平均粒子径が0.1~1.0μmである無機粒子(C)、を含む。ここで、重合性単量体(A)100重量部に対して、充填材(B)を50~400重量部、かつ、無機粒子(C)を100~400重量部含むことが好ましい。
