abstract |
(57) [Summary]nThe acid composition is such that the molar ratio of calcium to acid is in the range of 0.3 to 0.8 and, if necessary, after adjusting the pH with an alkali, the effective pH of the composition is 3.5 to 4.5. To produce a solid or semi-solid acidic oral composition having reduced tooth erosion properties by adding a calcium compound to the composition. |