下颌骨颏前点变化与上颌骨上抬量的相关性分析  

The inter-relationship between pogonion position and maxillary impaction osteotomies

作　　者：娄新田[1] 沈国芳[2] 冯贻苗[3] 房兵[2] 吴勇[2] 朱敏[2] 张桦[2] 

机构地区：[1]上海市浦东新区浦南医院口腔科,上海200125 [2]上海交通大学医学院附属第九人民医院·口腔医学院口腔颅颌面科,上海市口腔医学重点实验室,上海200011 [3]浙江大学医学院附属第二医院口腔科,杭州310009

出　　处：《中国口腔颌面外科杂志》2013年第6期482-486,共5页China Journal of Oral and Maxillofacial Surgery

基　　金：浦东新区科技发展基金创新资金(PKJ2011-Y14);浦东新区卫生系统优秀青年医学人才培养项目(PWRq2010-12)

摘　　要：目的:探讨Le Fort I型截骨术上抬上颌骨,下颌骨自动旋转后颏前点的变化与上颌骨上抬量的关系。方法:选取25例单纯采用Le Fort I型截骨术上抬上颌骨矫治垂直向发育过度的患者,测量手术前、后头颅定位侧位片。采用SPSS13.0软件包对ANS、PNS上抬量与下颌骨颏前点前移量和上抬量进行Pearson相关和线性回归分析。结果:25例样本中,ANS点平均上抬(5.04±1.20)mm,PNS点平均上抬(3.36±1.24)mm。颏前点平均前移(5.12±2.64)mm,颏前点平均上抬(4.04±2.38)mm。下颌骨颏前点前移量与ANS点的上抬量呈正相关关系(r=0.641,P=0.001),与PNS点的上抬量呈正相关关系(r=0.602,P=0.001)。下颌骨颏前点上抬量与ANS点的上抬量呈正相关关系(r=0.393,P=0.052),与PNS点的上抬量呈正相关关系(r=0.627,P=0.001)。结论:下颌骨颏前点的位置变化与上颌骨上抬幅度高度相关。PURPOSE： The purpose of the present investigation was to find the interrelation between the magnitude of maxillary surgical impaction and the position change of the pogonion. METHODS： Twenty-five patients who underwent maxillary Le Fort I impaction without concomitant major mandibular ramus split osteotomies were included. The preoperative and postoperative lateral cephalograms were used to evaluate the surgical changes. Statistical analysis was performed to evaluate the interrelation between the magnitude of maxillary surgical impaction and the change of the pogonion by using SPSS 13.0 software package. RESULTS： The magnitude of maxillary ANS point surgical impaction was, in average,（5.04~l.20）mm and the PNS point was, in average, （3.36-＋1.24）mm in these 25 patients. The magnitude of pogonion point was, in average, （5.12＋2.64）mm forward and （4.04_＋2.38）mm upward. The amount of the pogonion point tbrward and the ANS point elevation was positively correlated （r=0.641, P=0.001）, the amount of the pogonion point forward and the PNS point elevation was positively correlated （r=0.602, P=0.001）. The amount of the pogonion point upward and the ANS point elevation was positively correlated （r=0.393, P=0.052）. The amount of the pogonion point upward and the PNS point elevation was positively correlated （r=0.627, P=0.001）. CONCLUSION： The magnitude ofmaxillary. ANS and PNS point impaction was highly and positively correlated to tile position change of the pogonion. Supported by Pudong New Area Science and Technology Development Innovation Fund （PKJ2011-Y14） and Young Medical Talents Training Program of Pudong Health Bureau of Shanghai Municipality （PWRq2010-12）.

关 键 词：上颌骨垂直向发育过度 LE FORT I型截骨术 上颌骨上抬 下颌骨自动旋转 颏前点 

分 类 号：R782.2[医药卫生—口腔医学]