PROBLEM TO BE SOLVED: To provide a dental adhesive which realizes excellent adhesion durability and excellent adhesive strength between a repairing material and a tooth without an operation such as a preliminary treatment, when the tooth is repaired in a dentistry field and the like.SOLUTION: This dental adhesive comprises a polymerizable monomer including an acidic group-containing polymerizable monomer, water and a polymerization initiator comprising a photo acid generator, an oxidation type photoradical generator, a condensed multi-cyclic aromatic compound in which at least one hydrogen atom-having saturated carbon atom is bound to a carbon atom adjacent to the condensed carbon atom of a condensed multi-aromatic ring, and an amine compound. The photo acid generator is preferably a diaryl iodonium salt-based compound, and the oxidation type photoradical generator is preferably a diaryl ketone compound, an &alpha-diketone compound or a ketocoumarin compound.COPYRIGHT: (C)2008,JPO&INPIT【課題】歯科医療分野等における歯の修復に際し、前処理などの操作をしなくても、修復材料と歯質との優れた接着強度及び接着耐久性を実現する為の歯科用接着材の提供。【解決手段】酸性基含有重合性単量体を含む重合性単量体、及び水を含んで成る歯科用接着性組成物に、光酸発生剤、酸化型の光ラジカル発生剤、少なくとも一つの水素原子を有する飽和炭素原子が、縮合多環式芳香族環の縮合炭素原子に隣接する炭素原子と結合している縮合多環式芳香族化合物、及びアミン化合物から成る光重合開始剤を配合する歯科用接着材。光酸発生剤は、ジアリールヨードニウム塩系化合物が好ましく、酸化型の光ラジカル発生剤は、ジアリールケトン化合物、α-ジケトン化合物又はケトクマリン化合物が好ましい。【選択図】なし
