PROBLEM TO BE SOLVED: To provide an oral composition for hyperesthesia which has less stimulus to the user with hyperesthesia and has a good appearance, while effectively preventing the pain caused by dentin sensitivity by sealing the aperture of the dental tubule on the surface of exposed dentin immediately, effectively, and sufficiently.SOLUTION: The invention provides an oral composition for dentin sensitivity containing the following component (A), (B), and (C): (A) fatty acid having a hydrocarbon group of carbon number 12-18 or an alkali metal salt thereof, (B) one or more hyposensitization agent selected from potassium nitrate, tripotassium citrate, and potassium acetate, and (C) water as well as having a pH at 25°C of 7 or more to 9.5 or less.COPYRIGHT: (C)2015,JPO&INPIT【課題】露出した象牙質の表面における象牙細管の開口部を即効的かつ充分に封鎖して、象牙質知覚過敏症に起因する痛みを効果的に防止するとともに、知覚過敏の使用者に対する刺激も少なく、かつ外観が良好である知覚過敏用口腔用組成物に関する。【解決手段】次の成分(A)、(B)並びに(C):(A)炭素数12~18の炭化水素基を有する脂肪酸又はそのアルカリ金属塩、(B)硝酸カリウム、クエン酸三カリウム及び酢酸カリウムから選ばれる1種または2種以上の脱感作剤、並びに(C)水を含有し、かつ25℃におけるpHが7以上9.5以下である象牙質知覚過敏用口腔用組成物。【選択図】図1
