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為什麼有的充填物會脫落？

Posted By vickong pun     July 9, 2021    

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為什麼有的充填物會脫落？


    　　為什麼有的充填物會脫落？



    　　為什麼有的充填物會脫落？其主要原因有。



    

    

    ①繼發齲使充填物鬆動、脫落；

    

    ②嚴重齲壞，固位性能差；

    

    ③牙齒折斷，多發生在無髓牙；

    

    ④充填物折斷，多見於牙尖緊密接觸充填物的牙齒。

    

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