蛀牙

Bacteria stick to food debris in the teeth, causing decay.

细菌牙缝中的食物残渣上，导致蛀牙。

Most of those scientists, including Levy, still support water fluoridation as a proved method of controlling tooth decay, especially in populations where oral hygiene is poor.

不过，包括李威内的大份科学家仍然支持饮水加氟，尤其是口卫较差的社区，因为这是证明可以控制蛀牙的方法。