Methods:113 cases of midface fractures were reviewed. The nasal bone fracture, zygomatic arch fracture, optic nerve contusion, zygomatic maxilla fracture were treated.
方法：回顾分析113例面中部骨折的临床资料，治疗了鼻骨、颧弓、视神经损伤及颧上颌骨骨折。
Methods: the operation procedure included frustration and elevation of the nasal bone and part of the forntal process of maxilla and replacement of the nasal septum between greater alar cartilages.
方法：本手术通过凿断鼻骨及部分上颌骨额突揿压折断使其耸立以抬高鼻背和移植自体鼻中隔软骨以增高鼻尖或鼻翼，一次性完成鼻外形的整体修复。
Anterior mandible has the highest mean bone density and posterior maxilla has the lowest mean bone density.
下颌前牙区平均骨密度值最大，上颌后牙区平均骨密度值最小。
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