| 摘要 |
An oral composition containing in an orally acceptable vehicle, approximately by weight, an effective anticalculus amount in the range of 0.1 to 7% of one or a mixture of water soluble linear molecularly dehydrated alkali metal or ammonium polyphosphate salts as essential anticalculus agent, an amount of a fluoride ion source sufficient to supply 25 ppm to 2,000 ppm of fluoride ions, and one or a mixture of water soluble alkali metal or ammonium synthetic anionic polymeric polycarboxylate salts having a molecular weight of about 1,000 to 1,000,000, the polyphosphate ion:polycarboxylate salt weight ratio ranging from about 0.3:1 to about 2.5:1.
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