Patent ID: 8389598

Claim:
A dental polymerizable composition comprising a polymerizable monomer (a), a radical generator (b) and (meth)acrylate polymer particles (def), wherein the (meth)acrylate polymer particles (def) comprise, as main components, powders (d), powders (e) and powders (f), said powders (d) having a particle size distribution of 65 to 400 μm, a median diameter of 70 to 120 μm and a molecular weight (M G ) in terms of PMMA measured by GPC of 500,000 to 1,150,000, said powders (e) having a particle size distribution of 65 to 400 μm, a median diameter of 70 to 120 μm and a molecular weight (M G ) in terms of PMMA measured by GPC of more than 1,150,000 and less than 2,000,000, and said powders (f) having a particle size distribution of 10 to 65 μm, a median diameter of 20 to 60 μm and a molecular weight (M G ) in terms of PMMA measured by GPC of 300,000 to 3,000,000; and at least the polymerizable monomer (a) and the radical generator (b) are contained in different compositions I and III, respectively, and a mixture of these compositions is curable.