所以说补牙需到正规的口腔医院进行，选择较为适用的补牙材料才能有效避免癌变的出现。

So need to go to a regular dental dental hospital, select a more appropriate dental materials in order to avoid the appearance of cancer.

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美国食品药品管理局首次发出警告，使用含有汞的镀银补牙材料对儿童和孕妇的神经系统会造成危险。

For the first time, the FDA has issued a warning that the mercury contained in silver dental fillings may pose neurological risks to children and pregnant women.

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国际知名口腔专家说，补牙材料不合格不正规，会导致有毒的补牙材料被牙龈牙槽骨吸收，引发牙龈病变。

Internationally renowned dental experts say, failure is not regular dental materials, may lead to toxic dental materials, gums, alveolar bone loss was led to gum disease.

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