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談談兒童的拔牙問題

Posted By vickong pun     July 13, 2021    

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談談兒童的拔牙問題


     

    



    



    



    拔牙是極爲常見的手術,牙病損害嚴重或牙病引起局部和全身某些疾病,常需通過拔除患牙來治療。兒童時期,由于有乳恒牙的交替,其拔牙問題比較複雜,與成人有相當大的差異,兒童年齡、牙齒病變、牙根吸收及全身健康狀況等應全面衡量,而後做出決定,應采取慎重的態度。

    哪些牙該拔?一些齲齒大,髓底穿通,影響咀嚼,或者是殘根根尖刺破黏膜的牙槽膿腫反複發作,影響兒童機體的健康,或因病灶引起全身疾病的,以及恒牙已萌出,乳牙滯留,均應拔除。

    什麽樣的牙不能拔除呢?距離脫落期尚遠的乳牙,原則上應盡可能地予以保留,特別是乳磨牙和尖牙。乳磨牙承擔著兒童的重要咀嚼功能,且對颌骨發育、咀嚼肌的鍛煉以及恒牙的正常排列均有較大影響。如果過早拔除,恒牙不曾萌出,則使鄰牙向缺牙間隙移動,間隙變小,恒牙異位萌出,影響牙列和咬,以及牙颌系統的發育。接近脫落期的乳牙,通常可以拔除,但若不影響咀嚼或恒牙萌出,即使牙已松動,也可保留,待其自行脫落。年輕恒牙的拔除應取慎重態度,第一恒磨牙和尖牙尤其重要。上颌尖牙對保持上唇和顔面部的豐滿有重要作用,而第一磨牙對牙列功能影響極大,應盡可能予以保留。

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