口腔疾病防治2017，Vol.25Issue(6)：369-374,6.DOI:10.12016/j.issn.2096-1456.2017.06.006
改良Twin-block治疗颞下颌关节盘可复性前移位
Disc displacement with reduction treated by modified Twin-block
摘要
Abstract
Objective To investigate the morphology and position changes of displaced disk with reduction after treatment by modified Twin-block. Methods 19 patients were diagnosed as displaced disk with reduction and they were treated with modified Twin-block from July 2015 to June 2016. 28 temporomandibular joints (TMJ) of these pa-tients were included in the analysis. The disk length, disk-condylar distance, and disk-condylar angle were measured with MRI before and after treatment. Paired t-test was used. Disk morphology before and after treatment was also docu-mented and analyzed by Wilcoxon signed rank test. The statistical significance was set at P<0.01. Results 28 TMJ disks were anteriorly displaced with reduction. 24 of them were repositioned while the other 4 were still anteriorly posi-tioned after treatment. The disk length was increased significantly (P<0.01) while the disk-condylar distance and disk-condylar angle were decreased significantly after treatment (P<0.01). The disk morphology as hemiconvex (16) and bi-planar (9) were the majority before treatment, while biconcave (16) and biplanar (10) were changed to the larger part af-ter treatment. There was improvement on the disk deformation with a statistical significance (P<0.01). Larger disk-con-dylar distance, disk-condylar angle and severer deformation of disks were observed in the 4 disks without reposition. Conclusion Modified twin-block is an effective appliance for disk displacement with reduction by repositioning the disk and modifying the disk deformation. However the effect is not good for disks with severer deformation and displace-ment. Further studies with larger sample and stratified group are still needed.关键词
关节盘可复性前移位/改良Twin-block/磁共振成像/关节盘位置/关节盘形态Key words
Anterior disc displacement with reduction/Modified Twin-block/Magnetic resonance imaging/Disk position/Disk morphology分类
医药卫生引用本文复制引用
胡欣欣,朱耀旻,沈佩,罗晓,何柳婷,顾颖,杨驰..改良Twin-block治疗颞下颌关节盘可复性前移位[J].口腔疾病防治,2017,25(6):369-374,6.基金项目
国家自然科学基金(81601915) （81601915）
深圳市卫生和计划生育系统科研项目(201501017)深圳市科技创新项目(JCYJ20150330102401098) （201501017）
上海市科委西医引导项目(16411960800) （16411960800）
