各颈椎骨龄期不同骨性错（牙合）畸形的年龄差异性研究  

Study on the difference of corresponding age at cervical vertebral maturation stages among different skeletal malocclusions

作　　者：左常艳 丛超[1] 王诗惠[1] 谷岩[1] 

机构地区：[1]北京大学口腔医学院·口腔医院正畸科,100081

出　　处：《中华口腔医学杂志》2015年第10期611-614,共4页Chinese Journal of Stomatology

摘　　要：目的 比较相同颈椎骨龄期不同骨性错（牙合）畸形的年龄差异,为临床评估不同骨性错（牙合）的矫治时机提供依据.方法 选取2006年5月至2014年11月于北京大学口腔医学院·口腔医院正畸科就诊的错（牙合）畸形患者（年龄6- 20岁）,共2 575例,根据头颅侧位X线片ANB角,分为骨性Ⅰ类（ANB角为0°-5°,1 317例）、骨性Ⅱ类（ANB角＞5°,685例）和骨性Ⅲ类（ANB角＜0°,573例）;采用改良颈椎分析法（cervical vertebral maturation stage,CS）观察颈椎骨龄,分为CS2- CS6期.采用独立样本t检验分析相同颈椎骨龄期相同骨性分类男女患者的年龄差异,以及相同颈椎骨龄期不同骨性分类男性或女性患者的年龄差异.结果 CS3 - CS6期骨性Ⅰ类、CS5和CS6期骨性Ⅱ类、CS3和CS5期骨性Ⅲ类男女患者的年龄差异均有统计学意义（P＜0.05）.CS3期骨性Ⅱ类男性和女性年龄[分别为（11.6±1.5）和（11.7±1.3）岁]均显著大于同期同性别骨性Ⅲ类患者[（10.3±1.9）和（9.3±1.5）岁]（P＜0.05）.CS5和CS6期骨性Ⅱ类男性和女性年龄均显著小于同期同性别骨性Ⅲ类患者（P＜0.05）.结论 相同颈椎骨龄期骨性Ⅱ类与Ⅲ类错（牙合）患者的年龄存在差异,且临床不能忽视同颈椎骨龄期骨性Ⅰ、Ⅱ、Ⅲ类错（牙合）患者骨龄的性别差异.Objective To compare the difference of corresponding age at cervical vertebral maturation （CVM） stages among different skeletal malocclusions and provide clinic guideline on optimal treatment timing for skeletal malocclusion.Methods Based on ANB angle,2 575 cephalograms collected from Department of Orthodontics,Peking University School and Hospital of Stomatology from May,2006 to November,2014 were classified into skeletal Class Ⅰ （ANB 0°-5°,1 317 subjects）,Class Ⅱ （ANB〉5°,685 subjects） and Class Ⅲ （ANB〈0°,573 subjects） groups.CVM stages were evaluated with the modified version of CVM method.Independent sample t test was performed to analyze the difference of age at different CVM stages among various skeletal groups.Results Significant gender difference of age was found at CS3 to CS6 for skeletal Class Ⅰ group （P〈0.05）,at CS5 and CS6 for skeletal Class Ⅱ group （P〈0.05）,and at CS3 and CS5 for skeletal Class Ⅲ group （P〈0.05）.At CS3 stage,the average age of male in skeletal Class Ⅱ and skeletal Class Ⅲ groups was （11.6± 1.5） years old and （10.3± 1.9） years old,respectively;the average age of females in those two groups was （11.7±1.3） years old and （9.3± 1.5） years old,respectively,and significant difference was found in both comparisons （P〈0.05）.Compared average age at CS5 and CS6 between skeletal Class Ⅱ and skeletal Class Ⅲ groups [the ages of male was （15.1±1.7） and （16.8±1.6） years old,the ages of male was （14.6 ± 1.2） and （15.7 ± 2.5） years old],significant difference was also found （P〈0.05）.Conclusions Significant gender differences were found when evaluated CVM stage and age in skeletal Class Ⅰ,Ⅱ and Ⅲ groups.Significant differences of age at different CVM stage was noted when skeletal Class Ⅱ was compared with skeletal Class Ⅲ groups.

关 键 词：错(牙合) 颈椎 年龄测定 骨骼 年龄 

分 类 号：R783.5[医药卫生—口腔医学]