PROBLEM TO BE SOLVED: To provide a microbial adhesion prevention agent for oral cavity, exhibiting lasting microbial adhesion preventing effect by attaching to oral mucosa or tooth, having high stability as a preparation and directly applicable to the oral mucosa and tooth.SOLUTION: The microbial adhesion prevention agent includes a polymer containing phosphorylcholine group such as an MPC polymer produced by radical polymerization of a monomer composition containing an MPC monomer expressed by the formula as a microbial adhesion preventing component, a water-soluble polysaccharide as a binder component, a poly(meth)acrylic acid derivative as a solubilizing component and optionally a polyhydric alcohol, a disinfectant, etc.COPYRIGHT: (C)2011,JPO&INPIT【課題】口腔粘膜や歯に付着して持続的な微生物付着防止効果を示し、かつ製剤としての安定性の高い、口腔粘膜および歯に直接塗布することができる、口腔用微生物付着防止剤の提供。【解決手段】微生物付着防止成分としてホスホリルコリン基含有重合体、例えば、下記式で表されるMPC単量体を含む単量体組成物をラジカル重合してなるMPC重合体、バインダー成分として水溶性多糖類、および相溶化成分としてポリ(メタ)アクリル酸誘導体を含み、必要により、多価アルコールや、殺菌剤等を含む。【選択図】なし
