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為什麼要拍攝手腕骨x線片?

Posted By vickong pun     July 8, 2021    

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為什麼要拍攝手腕骨x線片?

  

  為什麼要拍攝手腕骨x線片?確定錯矯治方案、具體矯治方法及預測矯治效果時,有時需瞭解患者處在什麼發育階段。
但一般只根據年齡、身高或牙齒萌出情況進行判斷是不准確的,因為這些指標每個人之間的個體差異較大,而骨的鈣化及發育狀況則更能反映出一個人的發育階段,以評價頜骨的發育潛力。

手腕骨x線片投照方便,是目前用以確定錯患者青春進發期是否開始以及處於哪個階段的常用方法。
有頜骨發育異常的牙頜畸形患者早期可利用功能性矯治器以控制頜骨的生長,手腕骨片可以判斷頜骨的發育潛力,從而確定矯治時機及預測矯治效果。
一些嚴重的骨性錯畸形,需進行正頜外科手術治療者,必須明確患者是否已過了骨成熟期。
因為在此之前手術,術後可能因頜骨繼續發育而致畸形復發,所以對16~18歲的正頜外科患者,手腕骨x線診斷也屬必要。

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