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什麽情況下要拔牙矯治

Publicado por vickong pun     9 de julio de 2021    

Cuerpo

　　

什麽情況下要拔牙矯治

　　什麽情況下要拔牙矯治？第50%左右的矯正患者需要拔牙。拔牙的目的在于：利于拔牙間隙排齊擁擠的牙齒。擁擠度在章 Ⅱ～Ⅲ度（第7～第8毫米）的患者拔牙的可能性較大。利用拔牙間隙將前牙內收，改善牙弓突度，改善面型。比如有的人嘴唇比較前突，經過拔牙矯正後嘴唇的突度會變小，面型會更加和諧美觀。利用拔牙間隙調整後牙咬關系，使得後牙尖窩交錯，咬接觸面積最大，達到最佳的咀嚼功能。

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