Blogs Home » Education » 什麽是牙冠（套）為什麽需要戴牙冠（套）
vickong pun
vickong pun
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什麽是牙冠（套）為什麽需要戴牙冠（套）

Posted By vickong pun     July 11, 2021    

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什麽是牙冠（套）為什麽需要戴牙冠（套）


    



    什麽是牙冠（套）為什麽需要戴牙冠（套）



    牙冠（套）是覆蓋在牙齒表面，保護患牙的一種修複體。根據其材料的不同，通常用的有烤瓷和全瓷冠（套）兩種。

    牙冠（套）一般用于死髓牙，即牙齒壞得深而大、已到了牙神經且經過牙髓治療後的牙，這類牙因無營養供應，質地失水變脆，類似于落下來的枯樹枝，很容易劈裂，所以需要戴牙冠（套），保護牙齒並恢複缺損的部分。

    牙冠（套）也可用于活髓牙，這類牙雖不易劈裂，但由于咀嚼時酸痛或食物嵌塞、補牙材料容易脫落等原因，也需要冠（套）。

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