PROBLEM TO BE SOLVED: To provide a composition for oral cavity having a polishing effect and capable of preventing tooth decay, and adsorbing or removing oral microorganisms and remains of a meal, and having no risk for newly generating dental caries, and capable of being safely used for a long term.SOLUTION: The composition for oral cavity includes a porous carbon material having a specific surface area of 10 m2/g or more according to a nitrogen BET method, and a volume of a pore of 0.1 cm3/g or more according to a BJH method, or includes a porous carbon material having a specific surface area of 10 m2/g or more according to the nitrogen BET method, and a sum of volumes of pores having a diameter of 1x10-9 m to 5x10-7 m of 0.1 cm3/g or more obtained according to a non-localized density functional theory method.COPYRIGHT: (C)2013,JPO&INPIT【課題】研磨効果、虫歯予防や、口内微生物や食べ滓の吸着・除去を可能とし、しかも、新たな齲触発生リスクが無く、長く安全に使用することができる口腔用組成物を提供する。【解決手段】口腔用組成物は、窒素BET法による比表面積の値が10m2/グラム以上、BJH法による細孔の容積が0.1cm3/グラム以上である多孔質炭素材料を含み、あるいは又、窒素BET法による比表面積の値が10m2/グラム以上、非局在化密度汎関数法によって求められた直径1×10-9m乃至5×10-7mの細孔の容積の合計が0.1cm3/グラム以上である多孔質炭素材料を含む。【選択図】 図1
