PROBLEM TO BE SOLVED: To provide a resin cured product that still has a high transparency even with inorganic particles included therein, and is suitable for use as a dental material.SOLUTION: The resin cured product includes: a mother phase composed of an acrylic polymer that does not contain fluorine a coating phase composed of an acrylic polymer that contains fluorine and the inorganic particles. The coating phase and the inorganic particles are dispersed in the mother phase. The coating phase lies between the mother phase and at least a part of the whole of the inorganic particles.COPYRIGHT: (C)2012,JPO&INPIT【課題】無機粒子を含有していながら高い透明性を有し、歯科用材料として好適な樹脂硬化物を提供する。【解決手段】樹脂硬化物は、フッ素を含まないアクリル系重合体から構成されている母相と、フッ素を含むアクリル系重合体から構成されている被覆相と、無機粒子とを備える。前記母相中に前記被覆相と前記無機粒子とが分散している。前記無機粒子全体のうち少なくとも一部と前記母相との間に前記被覆相が介在している。【選択図】なし