DENTAL MATERIAL

PURPOSE: To prepare a dental material, comprising a filler composed of a specific cross-linked (meth)acrylic ester polymer, an acrylic or a methacrylic ester capable of forming cross-linkages, the ester incapable of forming the cross- linkages and an additive and processable into an ultrathin layer material. CONSTITUTION: This dental material comprises (A) a filler composed of a cross- linked (meth)acrylic ester polymer having 0.001-100μm particle diameter, 50-2,000wt.% swelling degree and 1-100wt.% cross-linking degree based on the polymer, (B) an acrylic or a methacrylic ester capable of forming cross-linkages, (C) the (meth)acrylic ester incapable of forming the cross-linkages and (D) one more starter additives well-known in themselves such as a starting additive. The amounts of the components are 5-35 pts.wt. component A, 40-90 pts.wt. component B, 0-40 pts.wt. component C and 0.1-10 pts.wt. component D. Since the dental material has excellent hardness, rigidity, abrasion resistance and toughness unfound in other materials, the material can be molded and processed into a denture, etc., and readily colored.