COMPOSITE RESIN MATERIAL FOR DENTISTRY CUTTING PROCESS

摘要

PROBLEM TO BE SOLVED: To provide a composite resin material for dentistry cutting process without air bubbles and excellent in mechanical strength such as bending strength and hardness, and glossiness after grinding.SOLUTION: The invention provides a composite resin material for dentistry cutting process formed by performing polymerization curing of a composition for molding which contains (A) 70-82% by weight of inorganic filler consisting of a composite metal oxide containing SiO, A1O, and ZrOhaving a mean particle diameter of 1-6μm, (B) (meta) acrylate polymerizing monomers, and (C) 1-10% by weight of SiOultrafine particle filler having a mean particle diameter of 0.1μm or less.