<；P>；PROBLEM TO BE SOLVED: To provide a liquid oral cavity composition in which decomposition of isopropylmethyl phenol with time is suppressed, for example, even if it is received in a transparent bottle containing no ultraviolet absorber and exposed to sunlight； a high permeating bactericidal effect into a periodontopathic biofilm is exhibited over a long period of time； and appearance stability with time is good. <；P>；SOLUTION: The liquid oral cavity composition contains (A) isopropylmethyl phenol, (B) rutin glycoside, and (C) an anionic surfactant and/or a nonionic surfactant. <；P>；COPYRIGHT: (C)2011,JPO&INPIT
