Patent ID: 8440739

Claim:
A dental composition comprising: a polymerizable monomer (A); 50 to 400 parts by weight of an amorphous filler (B) per 100 parts by weight of the polymerizable monomer (A) 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 containing a zirconium atom, a silicon atom, and an oxygen atom; and 100 to 400 parts by weight of inorganic particles (C) having an average particle size of 0.1 to 1.0 μm per 100 parts by weight of the polymerizable monomer(A), wherein the oxide coating covers a plurality of the silica-based fine particles, and 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.