| 摘要 |
<p>The present invention is directed to oral compositions comprising an orally-acceptable carrier and a silica abrasive comprising a precipitated amorphous silica compound having an average particle size of from 5 μm to 20 μm, oil absorption of from 60 cc/100 g to 120 cc/100 g, and an Einlehner hardness of from 4 to 11, and methods of use thereof.</p> |
