牙刷轻轻地刷去齿菌斑，没有伤及牙床或引起出血。
The toothbrush gently removes plaque without damaging the gums or causing bleeding.
口香糖能够增加唾液分泌，有助消灭齿菌斑。
The gum can stimulate saliva flow, which helps fight plaque .
通过预防致病生物的出现和成长，齿菌斑的自然聚集保护了口腔构造。
The natural accumulation of plaque can provide protection to oral structures by preventing the establishment and growth of putative pathogenic organisms.
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