| 摘要 |
<p>An oral hygiene composition comprising a silica base, from 1 to 10% by weight of the composition of a water soluble non-toxic strontium salt, a fluoride source providing from 250 ppm to 2000 ppm of fluoride in the composition, and a dentally acceptable carrier, provided that when the strontium salt is other than strontium acetate the silica base has a BET surface area of from 60 to 400 m<Sup>2</Sup>/g.</p><p>The composition has improved anti-sensitivity properties coupled with high levels of available fluorine.</p> |
