安徽地区正常(牙合)人群颅颌面部的三维头影测量  

Three-dimensional cephalometric measurement of craniofacial hard tissues with normal occlusion in Anhui area

作　　者：王新昱 徐建光 Wang Xinyu;Xu Jianguang(Dept of Stomatology,Anhui Medical University,Hefei 230032;Dept of Orthodontics,Stomatological Hospital Affiliated to Anhui Medical University,Hefei 230032)

机构地区：[1]安徽医科大学口腔医学教研室,合肥230032 [2]安徽医科大学附属口腔医院正畸科,合肥230032

出　　处：《安徽医科大学学报》2023年第1期145-150,共6页Acta Universitatis Medicinalis Anhui

基　　金：安徽省留学回国人员创新创业扶持计划项目(编号:2021LCX009)。

摘　　要：目的建立安徽地区三维头影测量的规范值数据库,了解安徽地区正常(牙合)成年人群的颅颌面部特征,为制定正畸以及正颌手术治疗计划等提供有效信息。方法根据纳入排除标准选取160例正常(牙合)志愿者,使用锥形束计算机断层扫描(CBCT)对志愿者进行拍摄;基于CBCT测量数据,使用Dophin为重建的三维模型建立坐标系,并确定38个硬组织标志点;定义并测量40个线距和20个角度,使用SPSS 17.0进行统计分析,获取标准人群全面部、面中部、上颌骨、下颌骨、牙槽骨以及牙列的颅面部特征。结果获得安徽地区正常(牙合)成年人颅颌面硬组织CBCT三维头影测量值;男性和女性颅颌面硬组织对称性均较好(非对称率最大为2.2%,最小为0.01%);性别比较显示,在线距中,上下颌中线偏移、上下颌骨相对偏移、上切牙突距、下切牙突距的差异无明显统计学意义,其他指标男性均大于女性(P<0.01);在角度中,除颌平面角之外,其他指标均无统计学意义;面部数据测量结果表明,中国人与其他种族相比具有独特面部特征。结论安徽汉族正常(牙合)颅颌面硬组织对称性较好;性别对测量线距影响明显,且一般男性大于女性,但对绝大部分测量角度无影响。Objective To establish a three-dimensional cephalometric standardized value database for Anhui province,to study the craniofacial characteristics of normal adult population in Anhui,China and to provide effective information for making orthodontic and orthognathic surgery treatment plans of the craniofacial deformity.Methods 160 normal occlusal volunteers were selected according to the inclusive and exclusive criteria and were photographed by Cone Beam CT(CBCT).The coordinate system was established for the 3D model reconstructed with Dolphin based on CBCT data,and 38 hard tissue landmarks were located.40 lines and 20 angles were defined and measured,and measurements were analyzed with SPSS 17.0,to evaluate craniofacial features of the overall,midface,maxilla,mandible,alveolar bone,and dentition of the standard population.Results The 3D cephalometric measurements of craniofacial hard tissues of normal adults in Anhui were obtained.The symmetry of craniofacial hard tissues was good both in males and females with the maximum asymmetry ratio of 2.2%and the minimum of 0.01%.The gender comparisons showed that most of lines measured of males were larger than those of females(P<0.01),while there was no significant difference in the measurements of the midline deviation of upper and lower mandible,the relative deviation of the maxillary and mandible and the protrusion of upper and lower incisor.Additionally,there was no statistical significance in angles measured between genders,except for the occlusal plane angle.The results also showed that Chinese had unique facial features based on the measured data,compared with other ethnic populations.Conclusion The normal occlusal and maxillofacial hard tissue of Anhui Han has good symmetry.The gender obviously influences line measurements,with generally the measurements of males larger than females,but it has no effect on most angle measurements.

关 键 词：锥形束计算机断层扫描 三维头影测量 正常(牙合) 面部对称性 

分 类 号：R783.5[医药卫生—口腔医学]