| 摘要 |
PROBLEM TO BE SOLVED: To obtain the subject composition keeping stable composition even in aqueous system, suppressing rapid reaction of each ion and capable of locally increasing pH of dentine and feeding sufficient calcium ion, etc., by including encapsulatedα-tertiary calcium phosphate. SOLUTION: This composition for oral cavity comprises (A) 0.05-30 wt.%, preferably 0.2-10 wt.% encapsulatedα-tertiary calcium phosphate and (B) as necessary, a fluorine compound in an amount of <2,000 ppm, preferably 50-1,500 ppm as a fluorine ion. Theα-tertiary calcium phosphate has preferably 0.05-50μm, more preferably 0.5-20μm average particle diameter. Theα-tertiary calcium can be encapsulated by mechanical, physicochemical or chemical production. The film thickness of the resultant film has preferably 3-100μm film thickness. The component B includes preferably sodium fluoride, monofluorophosphate, etc.
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