This invention, the composite resin for dentistry, the pottery material and restoration ones and the tooth of dentistry being cheap, simply furthermore offers the abrasive for dentistry which at brief is superior in glossy grinding possible grinding characteristic. From as for details, as for this invention, being the abrasive for dentistry which possesses the grinding section which combines the grinding abrasive grain to the elastomer type binder, the grinding section furthermore offers the abrasive for dentistry which features that the spherical resin particle is contained.本発明は、歯科用コンポジットレジン、陶材および歯科用修復物や歯牙を安価で簡便にしかも短時間で光沢研磨可能な研磨性に優れた歯科用研磨材を提供する。より詳しくは、本発明は、エラストマー系バインダーに研磨砥粒を配合した研磨部を有する歯科用研磨材であって、研磨部がさらに球状樹脂粒子を含有することを特徴とする歯科用研磨材を提供する。