| 摘要 |
<p>The invention relates to a brush-applied dentifrice which conveniently contains an abrasive, a thickener, a colourant, a surface tension reducing agent and/or a preservative among other things, and in which 5-20 % of the dentifrice is comprised of a tooth-surface polishing and abrasion-reducing substance, such as silicone oil.</p> |
