| 摘要 |
<p>A chemically and physically stable antiplaque dentifrice comprises an antiplaque quaternary ammonium compound, a betaine surfactant, a humectant system of glycerin and/or sorbitol and a nonionic gelling agent, and is prepared by a process which comprises the preparation of two separate gel phases, an oil gel phase and a water gel phase, combining the gel phases into a single gel, and adding a dental abrasive as the final step, or adding the abrasive to the water gel phase prior to the addition of the oil gel phase.</p> |
