PROBLEM TO BE SOLVED: To develop a dental adhesive composition in which the gelling is hardly caused even if a long period of time is kept by one liquid state, and the excellent bond strength can be excellently maintained and exerted in the dental adhesive composition including an acid group containing polymerizable monomer, a polyvalent metal ion, and water.SOLUTION: The dental adhesive composition includes: (A) an acid group containing polymerizable monomer, suitably a phosphinico oxy group and phosphonooxy group containing polymerizable monomer (B) a polyvalent metal ion, suitably a titanium ion and (C) water containing at least 10% by mass of heavy water.COPYRIGHT: (C)2013,JPO&INPIT【課題】 酸性基含有重合性単量体、多価金属イオン、水を含む歯科用接着性組成物において、1液状態で長期間保管してもゲル化が生じ難く、その優れた接着強度も良好に維持して発揮できるものを開発すること。【解決手段】(A)酸性基含有重合性単量体、好適には、ホスフィニコオキシ基およびホスホノオキシ基含有重合性単量体(B)多価金属イオン、好適にはチタンイオンおよび(C)重水を10質量%以上含有する水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
