Patients who remained concerned about enamel damage but want polishing can request the dental hygienist use a finer-grained paste.

想要洗牙的患者如果担心牙釉质的损坏，可以要求牙医使用颗粒更精细的抛光膏。

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But if the decay continues and breaks through the surface of the enamel, the damage is permanent.

但是如果龋坏继续进行穿过表面的牙釉质，将会形成永久性损害。

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First, fluoride makes your tooth enamel stronger and less likely to suffer acid damage.

首先，氟能够使你牙齿的釉质更坚固，同时降低酸性的腐蚀程度。

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