单侧后牙正锁[牙合]、反[牙合]对下颌升支及髁突对称性影响的临床观察  

Clinical Observation of the Effect of Unilateral Posterior Scissors-bite and Crossbite on the Symmetry of Mandibular Ramus and Condyle

作　　者：叶莉娜 何家才[2] YE Lina;HE Jiacai(Department of Stomatology Huangshan Municipal People's Hospital,Huangshan 245000,Anhui Province;School of Stomatology,Anhui Medical University,Hefei 230000,Anhui Province,China)

机构地区：[1]黄山市人民医院口腔科,安徽黄山245000 [2]安徽医科大学口腔医学院,安徽合肥230000

出　　处：《口腔颌面外科杂志》2020年第6期382-386,共5页Journal of Oral and Maxillofacial Surgery

基　　金：辽宁省教育厅资助项目(2009A747)。

摘　　要：目的:通过对正锁[牙合]、反[牙合]患者与磨牙中性关系者进行比较,探究其是否对下颌骨对称性发育有影响。方法:选取87例正畸患者的全景X线片资料,进行下颌不对称性测量。将患者分为对照组(28例)、反[牙合]组(23例)及正锁[牙合]组(36例),对各组男性与女性下颌升支、髁突及下颌高度不对称指数进行统计学分析。结果:患者年龄与下颌骨对称性无关;正锁[牙合]组男性与女性髁突对称性指数差异存在统计学意义(P<0.05)。3组间的下颌升支、下颌高度不对称指数差异无统计学意义(P>0.05),而对照组与正锁[牙合]组髁突不对称指数的差异存在统计学意义。结论:单侧正锁[牙合]可引起患者髁突的不对称,临床上需引起重视。Objective:To investigate the effect of the scissors bite and crossbite occlusion on the symmetric development of the mandible.Methods:The mandibular asymmetry was measured by the panoramic X-ray images of 87 orthodontic patients.The patients were divided into control group(n=28),crossbite group(n=23)and scissors bite group(n=36).The data of ascending ramus,condylar process,and asymmetric index of mandibular height were analyzed statistically.Results:It showed that age had nothing to do with the symmetry of mandible,but the gender was significantly different in the symmetry index of condylar process in the scissors bite group(P<0.05).There was no statistical difference in mandibular ramus and asymmetric index of mandibular height between the control group,the scissors bite group and the crossbite group,while there was a statistical difference in the asymmetry of condylar process between the control group and the scissors bite group.Conclusion:Patients with unilateral scissors bite can cause the asymmetry of the condyle which needs to be paid more attention in clinical practice.

关 键 词：正锁[牙合] 反[牙合] 颞下颌关节 髁突 对称性 

分 类 号：R782[医药卫生—口腔医学]