咬合重建前后颞下颌关节症状及骨性结构影像学改变的研究  

Research of changes of symptoms and bone structure imaging of temporomandibular joint after treatment of occlusal recon struction

作　　者：张烈焚[1] 鲍冰鹏[1] 夏冰[1] 刘丽[1] 

机构地区：[1]浙江大学医学院附属口腔医院修复科,杭州310006

出　　处：《口腔医学》2013年第10期661-664,共4页Stomatology

基　　金：浙江省教育厅项目(Y201018001);浙江省医药卫生科研基金(2010KYB067)

摘　　要：目的研究咬合重建前后颞下颌关节症状及骨性结构的影像学变化。方法选择2011年1月至12月口腔修复门诊需咬合重建的患者20例,分别在修复前及修复后3个月进行颞下颌关节临床症状及锥形束CT影像学检查,在垂直于髁状突横轴的矢状位重建影像,测得关节前、中、后间隙。结果进行卡方检验、配对样本均数t检验以及直线相关分析。结果经过3个月的咬合重建修复,患者咀嚼肌和关节区压痛有显著改善,关节弹响未见明显好转。CBCT结果显示咬合重建后关节前间隙减小、后间隙增大,直线相关和回归分析显示关节后间隙的改变与咬合增高距离相关,并推导出线性回归方程。结论测量关节后间隙对确定咬合增高的距离有一定的参考价值。Objective To research changes of symptoms and bone structure imagings of temporomandibular joint（TMJ） after occlusal reconstruction. Methods Choose 20 patients who needed occlusal reconstruction in Department of Prosthodontics from January to De- cember in 2011. Check the clinical symptoms and bone structure of TMJ by CBCT before and 3 months after occlusal reconstruction. Measure the anterior, middle and posterior joint space according to reconstructing image perpendicular to the horizontal axis of condyle. The results were analysed through chi-square test,paired t test and linear correlation analysis. Results 3 months after occlusal recon- struction,masticatory muscle and joint pain was significantly reduced, but joint clicking wasn＇t ameliorated obviously. The results of CBCT imaging showed the anterior joint space significantly decreased and the posterior space enlarged. There was significant correlation between posterior joint space variation and occlusal increased distance according to linear correlation analysis and regression analysis. Conclusions There is reference value to measure TMJ space for deciding the amount of occlusal increased distance.

关 键 词：咬合重建 颞下颌关节 锥形束CT 

分 类 号：R782.63[医药卫生—口腔医学]