PROBLEM TO BE SOLVED: To provide a new compound useful for treating or preventing periodontal diseases or foul breath odor, and to provide a composition and food/drink containing the same and intended for treating or preventing periodontal diseases or foul breath odor.SOLUTION: The new compound is an indane derivative represented by formula (I) or (II) (wherein, R1 and R2 are each a 1-3C alkyl optionally substituted with hydroxy group(s)). The composition and food/drink each containing the indane derivative are also provided.COPYRIGHT: (C)2010,JPO&INPIT【課題】歯周病又は口臭の治療又は予防に有効な新規化合物、及びこれを含む歯周病又は口臭の治療又は予防用組成物及び飲食物を提供する。【解決手段】下記の式(I)又は式(II)で示されるインダン誘導体(式中、R1及びR2は水酸基で置換されていてもよい炭素数1~3のアルキル基を表す。)と、本インダン誘導体を含む組成物及び飲食物。【選択図】なし
