下颌运动轨迹描计法确定无牙颌颌位关系的准确性评价  

Accuracy evaluation of recording maxillomandibular relation with the mandibular kinesiography

作　　者：佘文珺[1] 谢俊良 焦婷[1] SHE Wen-jun;XIE Jun-liang;JIAO Ting(Department of Prosthodontics,Shanghai Ninth People's Hospital,Shanghai Jiao Tong University School of Medicine,College of Stomotology,Shanghai Jiao Tong University,National Center for Stomotology,National Clinical Research Center for oral diseases,Shanghai Key Laboratory of Stomatology,Shanghai Research Institute of Stomatology.Shanghai 200011;Department of Endodontics,Stomatological Hospital Affiliated to Tongji University.Shanghai 200072,China)

机构地区：[1]上海交通大学医学院附属第九人民医院口腔修复科,上海交通大学口腔医学院,国家口腔医学中心,国家口腔疾病临床研究中心,上海市口腔医学重点实验室,上海市口腔医学研究所,上海200011 [2]同济大学附属口腔医院牙体牙髓病科,上海200072

出　　处：《上海口腔医学》2023年第5期497-500,共4页Shanghai Journal of Stomatology

基　　金：上海市卫健委科研项目(201840022)。

摘　　要：目的:采用咀嚼肌表面肌电检测及颞下颌关节磁共振扫描评价下颌运动轨迹描计法确定无牙颌颌位关系的准确性。方法:随机选择8例牙列缺失患者,分别采用下颌运动轨迹描计法和传统颌位记录法确定上下颌位关系,然后制作相应[牙合]托。进行闭口位左右侧颞肌前束及咬肌表面肌电测试及颞下颌关节磁共振扫描,记录峰值电位,计算不对称指数,分析关节盘与髁突的位置关系,测量TMJ关节间隙,并进行比较。采用SPSS 18.0软件包对数据进行统计学分析。结果:下颌运动轨迹描计组与传统颌位记录组间左右颞肌前束及咬肌峰值电位无显著差异(P>0.05),2组间总体不对称指数、咬肌不对称指数及颞肌不对称指数无显著差异(P>0.05),左右侧颞下颌关节前、上、后间隙无显著差异(P>0.05);颞下颌关节盘-突关系正常,符合正常生理位置关系。结论:下颌运动轨迹描计法能准确记录无牙颌患者的颌位关系。PURPOSE:To evaluate the accuracy of recording maxillomandibular position relationship with the mandibular kinesiography by surface electromyography analysis of the masticatory muscles and MRI of temporomandibular joint(TMJ).METHODS:Eight edentulous patients were selected randomly,and the maxillomandibular position relationship was determined by mandibular kinesiography and traditional method respectively.Then the corresponding bite plates were made to wear.Surface electromyography test of left and right anterior temporal and masseter muscle and magnetic resonance scan of the temporomandibular joint were performed on closed mouth position to record peak potentials,calculate asymmetric indexes,analyze the position relationship between the joint disc and the condyle,measure TMJ joint space.SPSS 18.0 software package was used for data analysis.RESULTS:There was no significant difference in the amplitude of the anterior temporal or masseter muscle,the asymmetry index of total,asymmetry index of masseter,asymmetry index of temporalis,the anterior,upper and posterior spaces of TMJ between the mandibular kinesiography group and the traditional group(P>0.05).The temporomandibular articular disc process relationship of the two groups were conformed to the normal physiological position relationship.CONCLUSIONS:Mandibular kinesiography could accurately record the maxillomandibular position relationship in patients with edentulous jaws.

关 键 词：下颌运动轨迹 无牙颌 颌位记录 咀嚼肌表面肌电 颞下颌关节 磁共振扫描 

分 类 号：R783[医药卫生—口腔医学]