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樁釘是否越結實越好?樁釘有哪幾種?有何區別

Publicado por vickong pun     8 de julio de 2021    

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樁釘是否越結實越好?樁釘有哪幾種?有何區別


    



    樁釘是否越結實越好?樁釘有哪幾種?有何區別



      樁釘是否越結實越好?樁釘有哪幾種?有何區別?有何區別樁釘是樁冠修複殘根、殘冠時爲外部的冠套提供固位支持的部分,它一部分插入根管內,其余的稱爲核在根外恢複牙體缺損,並爲冠提供固位。根據材料的不同,樁釘分爲兩類:金屬樁和非金屬樁,金屬樁又分爲鎳鉻合金樁、钛合金樁、純钛樁和金合金樁等;非金屬樁分爲瓷樁和纖維樁等。由于不同材料的機械性能和生物學性能,不同樁的強度、韌性及生物安全性也有差異,所以樁釘並不是越結實越好,而是與天然牙越接近越好,如纖維樁的機械性能與天然牙較接近,钛樁和金合金樁的生物學性能更好。樁的選用應根據牙體缺損的情況、外部冠的類型和患者的美觀性要求等綜合考慮。

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