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做烤瓷牙是否需要將牙齒磨得很小?磨牙時疼痛嗎

Publicado por vickong pun     10 de julio de 2021    

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做烤瓷牙是否需要將牙齒磨得很小?磨牙時疼痛嗎


     



    做烤瓷牙是否需要將牙齒磨得很小?磨牙時疼痛嗎



    做烤瓷牙前需要將患牙磨去一層,其主要目的有兩個:

    一是使牙齒上下寬度相同或下方稍寬,保證冠戴上後與患牙密合;

    二是爲烤瓷冠留出足夠空間,從而保證冠的厚度和強度。磨去的牙齒不足原長度的1/3,一般不會磨到牙神經。如果患牙是死髓牙,磨牙時沒有疼痛;如果是活髓牙,需要在磨牙前進行局部麻醉以保證無痛。

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