Objective: To evaluate the diagnostic value of spiral CT 3D reconstructions for ambushed accessory teeth in maxillo-facial region.
目的：探讨螺旋CT三维重建技术对颌骨埋伏多生牙的诊断价值。
Objective The maxillo facial skeletal deformity can only be corrected through orthognathics that consists of orthodontics and operation.
目的颌面部的骨性畸型，必须通过正畸和外科手术联合的正颌治疗，才能达到功能和美观的正常。
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