| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a new composition for reducing tooth erosion. <P>SOLUTION: A solid or semi-solid acidic oral composition having reduced tooth erosion characteristics contains a calcium compound and an acidic substance and is produced by adding the calcium compound to the acidic substance so that the molar ratio of calcium to acid ranges from 0.3 to 0.8, and the effective pH of the composition, if necessary after pH adjustment with an alkali, is from 3.5 to 4.5. When the product contains calcium at a high level and when the pH of the composition is adjusted, use of calcium in an amount smaller than that of the acidic substance can accomplish effective reduction in tooth erosion of the acidic orally administered composition without detriment to comfortableness. <P>COPYRIGHT: (C)2009,JPO&INPIT |
