常用头影测量软件重叠技术的准确性研究  

Study on the accuracy of superimposition technique of common cephalometric software

作　　者：陈萌 韩天媛 凌兆 邵玶[1] 汤荟文 王晓琳 CHEN Meng;HAN Tianyuan;LING Zhao;SHAO Ping;TANG Huiwen;WANG Xiaolin(Department of Orthodontics,First Affiliated Hospital,Harbin Medical University,Harbin 150001,China)

机构地区：[1]哈尔滨医科大学附属第一医院口腔正畸科,黑龙江哈尔滨150001

出　　处：《口腔医学》2021年第8期724-727,共4页Stomatology

摘　　要：目的分析常用头影测量软件重叠技术的准确性。方法选取2010—2018年就诊于哈尔滨医科大学附属第一医院口腔正畸科的患者80例,分为青少年组与成年组,每组各40例。取每例样本矫治前后头颅侧位片,采用Bjork结构重叠法与常用头影测量软件重叠法进行上下颌重叠分析,计算两种重叠方法矫治前后分别得出的上下颌中切牙以及上下颌第一磨牙标志点的垂直、水平位移及牙轴旋转变化。应用SPSS 23.0软件,采用Wilcoxon符号秩和检验计算两种重叠方法所得各项变化值是否存在差异。结果青少年组中两种方法在上颌切牙及磨牙的垂直位移变化上存在显著差异(P<0.05),在下颌重叠中两种方法均无显著差异(P>0.05)。成年组中两种方法的测量值均无显著差异(P>0.05)。结论对青少年患者采用头影测量软件中的重叠方法分析可能会得到不准确的牙齿移动信息,建议使用准确的Bjork结构重叠法。成年患者则可以使用常用头影测量软件上下颌重叠技术。Objective To analyze the accuracy of superimposition technique of common cephalometric software.Methods A total of 80 patients treated in the Department of Orthodontics in Harbin Medical University from 2010 to 2018 were selected and divided into adolescent group and adult group,each with 40 cases.Cephalograms were taken from each sample before and after treatment.The maxillary and mandibular superimposition was analyzed by Bjork structural superimposition method and cephalometric software superimposition method,and the vertical and horizontal displacement and axis rotation of the landmarks of the upper and lower central incisors and the upper and lower first molars were calculated before and after orthodontic treatment.SPSS23.0 software and Wilcoxon signed-rank test were used to calculate whether there were differences between the two superimposition methods.Results There were significant differences between the two methods in the vertical displacement of the upper incisors and molars in the adolescent group(P<0.05),and there was no significant difference between the two methods in the mandibular superimposition(P>0.05).There was no significant difference in the measured values of the two methods in the adult group(P>0.05).Conclusion The analysis of the superimposition method in the cephalometric software for adolescent patients may result in inaccurate tooth movement information,so it is recommended to use the accurate Bjork structural superimposition method.Adult patients can use cephalometric software superimposition technique.

关 键 词：头影重叠 Bjork结构重叠法 头影测量分析 头影测量软件 

分 类 号：R783.5[医药卫生—口腔医学]