肌位咬合板治疗可复性盘前移位的回顾研究

目的 研究肌位咬合板对可复性关节盘前移位的治疗效果。 方法 对临床症状和MRI检查确诊为可复性盘前移位且戴用肌位咬合板进行治疗的89例患者（男23例，女66例）进行回顾研究，所有患者除吃饭外全天戴用咬合板，治疗时间3～6个月。记录治疗期间患者1周、4周、12周复诊时恢复情况。将患者按年龄和病史分别进行分组并对下颌功能恢复情况进行整理、分析。 结果 89例患者中，按年龄和病史分组，治疗结束后，患者中年龄较小，病史较短的患者治愈率最高，分别为88.9%和90.9%，进行卡方检验，年龄组χ2=41.53（P<0.05），病史分组χ2=23.94（P<0.05），差异均有统计学意义。 结论 肌位咬合板对于可复性盘前移位的治疗有效，尤其是对病史较短（小于两周）、年龄较小（小于17岁）的患者效果非常显著。

A retrospective study of the effect of muscular position splint on anterior disk displacement with reduction

Objective To evaluate the clinical effect of muscular position splint on anterior disk displacement with reduction,to analyze the result of the treatment,and to investigate the factors that influence the effect of the treatment.Methods 89 patients (23 men and 66 women),who were diagnosed as anterior disk displacement with reduction by clinical and MRI examination participated in this study.All patients received muscular position splint treatment,and the total course of treatment was 3～6 months .We recorded the condition of recovery 1 week,4 weeks and 12 weeks after treatment.When the treatment was finished,the patients were divided into two different groups according to age and medical history,and the date was retrospectively analyzed.Results The patients who were younger than 17 and those whose clicking time was shorter than two weeks showed better outcome than others,and the recovery rates were respectively 88.9% and 90.9%.The results were analyzed by chi square test,which showed in age group the χ2=41.53(P<0.05) while in history group χ2=23.94(P<0.05),and there were statistically significant differences in two groups.Conclusions Muscular position splint is more effective in the treatment of anterior disk displacement with reduction in younger patients whose clicking time is shorter than two weeks,thus occlusal splint should be recommended at the early stage of the temporomandibular joint clicking for the possibility of this condition to be cured as we expect.