PROBLEM TO BE SOLVED: To provide a 1 paste type dental adhesive composition comprising mechanical property and aesthetic property which are required for a restoration material, excellent in durable adhesive strength to a dentine, hardly receiving affection of polymerization shrinkage stress even when being filled and cured collectively, and exhibiting preferable durable adhesion.SOLUTION: There is provided a dental adhesive composition comprising: (a) a polymerizable monomer including no acidic group； (b) a polymerizable monomer including an acidic group； (c) a filler； (d) a photoinitiator； (e) a chain transfer agent, in which the chain transfer agent includes α-alkylstyrene compound.SELECTED DRAWING: NoneCOPYRIGHT: (C)2019,JPO&INPIT【課題】修復材料に求められる機械的特性や審美性を有し、かつ歯質に対する耐久接着強さに優れ、一括で充填硬化した場合にも重合収縮応力の影響を受けにくく、良好な耐久接着性を発現する１ペースト型の歯科用接着性組成物の提供。【解決手段】（ａ）酸性基非含有重合性単量体、（ｂ）酸性基含有重合性単量体、（ｃ）充填材、（ｄ）光重合開始剤、（ｅ）連鎖移動剤、を含む歯科用接着性組成物において、連鎖移動剤がα－アルキルスチレン化合物を含むことを特徴とする歯科用接着性組成物。【選択図】なし
