PROBLEM TO BE SOLVED: To provide a dental restorative material having further improved dispersibility of a pigment in the dental restorative material to prevent color heterogeneity.SOLUTION: The dental restorative material contains (A) a liquid material containing a polymerizable monomer, (B) a powdery material containing (b) an organic polymer soluble in the liquid material (A), and (c) a polymerization initiator contained in at least one of the liquid material (A) and the powdery material (B), wherein at least a part of the organic polymer (b) is a pigment-supporting organic polymer (b1) supporting a pigment and having a solubility of &ge40 wt.% in the polymerizable monomer measured by adding 2 pts.mass of the polymer to 100 pts.mass of the polymerizable monomer and stirring at a rotation speed of 300 rpm at 23°C for 3 min.COPYRIGHT: (C)2009,JPO&INPIT【課題】 歯科用修復材中における顔料の分散性をより向上させ、色ムラを防止する。【解決手段】重合性単量体を含む(A)液材と、(A)液材に溶解する(b)有機ポリマーを含む(B)粉材と、(A)液材若しくは(B)粉材の内少なくともいずれか一方に含まれる(c)重合開始剤とを含む歯科用修復材において、(b)有機ポリマーの少なくとも一部を、顔料を担持し、重合性単量体100質量部に対して2質量部を添加して回転速度300rpmにて23℃の液温下で3分間攪拌後、重合性単量体への溶解率が40重量%以上となる(b1)顔料担持用有機ポリマーとした歯科用修復材とする。【選択図】なし
