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阻生牙是什麼?

Posted By vickong pun     July 14, 2021    

Body

阻生牙是什麼?
——阻生牙是什麼?

牙在頜骨內由於位置不當,不能萌出到正常咬合位置,被稱為阻生牙或阻生齒。最常見的阻生牙是下頜第三磨牙,其次是上頜第三磨牙和上頜尖牙。據統計,成人中阻生牙的發生率為20%。這種阻生牙和覆蓋在它上面的牙齦之間,很容易藏污納垢,滋生細菌,引起口臭、齲壞,當身體抵抗力下降時,常常會發生炎症。



阻生牙是什麼




    ——臨床表現

    阻生牙牙冠周圍嘅牙齦常常會發炎,疼痛,嚴重時臉頰可以腫脹,張口困難,甚至全身發熱,頜下淋巴結腫大。阻生牙常常還會引起鄰牙齲壞,松動,牙槽骨吸收等症狀。

    

    
        ——治療
    
        由於阻生牙位置不正,被鄰牙阻擋,有些還可能完全被骨組織包埋。因此阻生牙的掹除比其他牙要困難,被牙齦覆蓋嘅要切開牙齦,被骨包埋嘅要把骨去除,被鄰牙擋住嘅要把牙冠劈開,分片掹除。所以,脫阻生牙費時較長,術中術後可能發生嘅並發症也較多,如出血、斷根、鄰牙損傷、術後下唇麻木、干槽症等。

        

        ——注意事項

拔除阻生牙難度比較高,對醫生的手勢同經驗都有較高要求,因此拔除阻生牙應該搵比較正規的牙醫診所進行就醫。






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    《珠海剝牙要幾錢?

    《珠海無痛拔牙需要幾錢?

    

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