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没有提及如何保护珐琅质,牙齿外面最坚固的,洁白的物质。洗牙过于频繁,容易摧毁这层物质,今后就要更多地给牙医捐钱才能保证牙齿健康。最羡慕非洲兄弟,没见怎么投资,牙齿世界第一白,也整齐!怎么搞的?

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(#168615@0)
2001-8-16 -04:00
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