PROBLEM TO BE SOLVED: To provide a composition for an oral cavity by which caries prevention effect can be expected sufficiently, by increasing a taking amount of fluorine ion into enamelum or dentin of teeth, while using jointly a disaccharide such as trehalose and a fluorine ion-feeding compound, followed by improvement of acid resistance of teeth.SOLUTION: This composition for an oral cavity contains following components (A), (B) and (C): (A) a 25-50 mass% disaccharide whose solubility to water at 20°C is ≤50 mass%, (B) 10-40 mass% water, and (C) a fluorine ion-feeding compound as much as 0.002-5 mass% in terms of fluorine atoms wherein the mass ratio (A/B) of the component (A) to the component (B) is 1-4.COPYRIGHT: (C)2013,JPO&INPIT【課題】トレハロース等の二糖類とフッ素イオン供給化合物とを併用しながら、歯のエナメル質又は象牙質へのフッ素イオンの取り込み量を増大させることによって、歯の耐酸性を向上させ、う蝕予防効果を充分に期待できる口腔用組成物を提供する。【解決手段】次の成分(A)、(B)及び(C):(A)20℃における水に対する溶解度が50質量%以下である二糖類 25~50質量%、(B)水 10~40質量%、及び(C)フッ素イオン供給化合物 フッ素原子換算で0.002~5質量%を含有し、成分(A)と成分(B)の質量比(A/B)が1~4である口腔用組成物。【選択図】なし
