稳定咬合板和再定位咬合板治疗青少年颞下颌关节盘间断性锁结的临床疗效评价

目的:比较稳定咬合板和再定位咬合板进行治疗对于青少年颞下颌关节盘间断性锁结患者的临床应用疗效.方法:将40例青少年颞下颌关节盘间断性锁结患者,随机分为两组,分别戴用稳定咬合板和再定位咬合板进行治疗3-6个月,记录治疗前后关节疼痛指数、关节弹响及主动开口度;并比较MRI影像检查中关节盘-髁突距离在治疗前、后的变化.结果:...

Clinical effect of stabilization splint and anterior repositioning splint on treating intermittent closed lock

Objective:To compare the clinical effect of stabilization splint and anterior repositioning splint on treating intermittent closed lock.Methods:Ten patients with intermittent atresia were randomly divided into two groups with 30 patients in each group.Before and after treatment,the joint pain index,joint bounce and active opening degree were recorded,and the comparative study was conducted within and between groups.and the changes of disc condyle distance in MRI images before and after treatment were compared.Results:In terms of relieving joint pain and improving active opening,the two occlusal splints exerted good effects.There was no significant difference between the two groups(P>0.05).The pain index was 6.75±0.40 before treatment and 2.80±0.20 after treatment in patients with stabilization splint;the pain index was 6.50±0.20 before treatment and 2.60±0.30 after treatment in patients with anterior repositioning splint.The opening degree of patients with stabilization splint was 27.20±1.20 before treatment and 39.50±1.50 after treatment,and was 28.50±1.30 before treatment and 40.60±1.40 after treatment for patients with anterior repositioning splint.In the treatment of joint clicks,most patients with the stabilization splint had no significant change in joint clicks,and the joint clicks in patients with anterior repositioning splint was significantly improved,the difference between the two groups was statistically significant.MRI examination showed that anterior repositioning splint could significantly reduce the distance between the articular disc and condyle and restore the normal disc-condyle relationship.In patients treated with stabilization splint,the distance between the articular disc and condyle was 6.34±2.13 before treatment and 3.65±1.56 after treatment;in patients treated with anterior repositioning splint,the distance between the articular disc and condyle was 6.45±2.15 before treatment and 1.15±1.55 after treatment.Conclusion:For patients with intermittent temporomandibular atresia,stabilization splint and anterior repositioning splint exert good effects in relieving joint pain and increasing mouth opening degree.In the treatment of joint clicks and recovery of normal disc-condyle relationship,the anterior repositioning splint is significantly better than the stabilization splint.However,the follow-up time period of this study is short,and the long-term efficacy of the two kinds of splint needs further observation and research.