Patent ID: 8455564

Claim:
A dental composition comprising: a polymerizable monomer component (A); 20 to 500 parts by weight of an amorphous filler (B) per 100 parts by weight of the polymerizable monomer component (A), said amorphous filler having an average particle size of 1 to 20 μm and comprising silica-based fine particles and coatings of an oxide that cover the surfaces of the silica-based fine particles, the oxide comprising a zirconium atom, a silicon atom, and an oxygen atom, and inorganic ultrafine particles (D) having an average particle size of from 5 to 50 nm, wherein the oxide coatings cover a plurality of the silica-based fine particles, filler (B) has a structure in which the oxide coating of the silica-based fine particle and the oxide coating of a neighboring silica-based fine particle extend and are connected to each other, and the dental composition has a viscosity of 10 to 800 Pa·s.