| abstract |
The present invention relates to an oral composition having improved ability of incorporating fluoride ions into tooth enamel and an enhanced remineralization effect. That is, the present invention provides an oral composition comprising an ingredient (A): 0.005 mass % or more and 2 mass % or less, in terms of fluorine atoms, of one or more fluoride ion-supplying compounds selected from the group consisting of sodium fluoride, ammonium fluoride, potassium fluoride, sodium monofluorophosphate, and tin fluoride; an ingredient (B): 4 mass % or more and 30 mass % or less of a higher alcohol having 12 or more and 22 or less carbon atoms comprising (b1) cetanol and (b2) stearyl alcohol; an ingredient (C): 0.1 mass % or more and 10 mass % or less of a surfactant comprising one or more selected from the group consisting of (c1) a nonionic surfactant selected from the group consisting of sorbitan fatty acid ester and polyoxyethylene sorbitan fatty acid ester and (c2) an anionic surfactant being fatty acid having 12 or more and 22 or less carbon atoms or a salt thereof; and an ingredient (D): water, wherein the content of the ingredient (c1) is a specific level or more; and the mass ratio of the content of the ingredient (A) in terms of fluorine atoms to the content of the ingredient (B), (A)/(B), and the molar amount of (E) a polyvalent metal compound other than the ingredient (A) are specific values. |