Conclusions the occlusion in centric jawrelation should be analysed before treatment to reveal the disharmony between occlusion and jaw position.
结论正畸治疗前必须了解患者下颌处于正中关系时的咬合情况，发现与下颌位置之间的不协调。
2
Result It can accurately display the jaw and face fracture anatomise and the relation with other parts with the spiral CT three dimension reconstruction.
结果螺旋CT三维重建技术能够立体地，详尽和精确地显示颌面部的三维骨折解剖结构和相邻关系。
3
Results All the patients had normal jaw morphology, and occlusion relation were restored after operation, and the itanium plate without any rejection reaction, no loosening or displacement.