下颌骨外形线的相关性研究

The Craniomaxillofacial Correlation Study of Mandibular Contour

目的研究下颌骨外形线与颅颌面结构的关系,为下颌骨重建提供指导。方法对80例华东地区正常牙合汉族成年人头颅定位正、侧位X线片进行头影测量分析,数据以SAS6.12统计软件进行分析。结果下颌骨外形线变量(ArGo、GoPg、GoGo)与颅颌面结构间存在着显著的相关关系(P<0.01),且性别差异显著(P<0.01),但年龄差异无统计学意义(P>0.05)。同时建立了华东地区正常牙合汉族成年人下颌骨外形线变量的回归方程(P<0.01)。结论下颌骨外形线与颅颌面三维结构间存在显著的定量相关关系。

Objective The relationships between mandibular contour and craniomaxillofacial structures were studied for mandibular reconstruction in clinic. Methods Cephalometric analysis, including frontal and lateral views, of 80 adults with normal occlusion from east-china was performed. All data was dealed with by SAS6.12. Results The significant correlations were presented between the variables of mandibular contour(ArGo?GoPg?GoGo) and craniomaxillofacial structures(P<0.01). Meanwhile , there existed sex differences (P<0.01) without age difference(P>0.05). Furthermore, the regression equations of mandibular contour variables of adults with normal occlusion from Han tribe in east-china were established(P<0.01). Conclusion Quantitative correlations existed between mandibular contour and three-dimentional craniomaxillofacial structures. <