PROBLEM TO BE SOLVED: To provide a composition for oral cavity which improves the tooth plaque removal effect of dextranase and also has excellent plaque adhesion inhibitory effect, and is superior in dental caries preventive effect.SOLUTION: A composition for oral cavity contains (A) dextranase, (B) polyglyceryl fatty acid ester and (C) ampholytic surfactant.COPYRIGHT: (C)2014,JPO&INPIT【課題】デキストラナーゼによる歯牙の歯垢除去効果が向上し、かつ優れた歯垢付着抑制効果を有し、う蝕予防効果が高い口腔用組成物を提供する。【解決手段】(A)デキストラナーゼ、(B)ポリグリセリン脂肪酸エステル及び(C)両性界面活性剤を含有してなることを特徴とする口腔用組成物。【選択図】なし