隐适美MA治疗青少年骨性Ⅱ类下颌后缩患者导下颌向前的矫治效果

Effect of Yinshimei MA on the Treatment of Adolescent Patients with Skeletal ClassⅡMandibular Retrusion by Guiding Mandibular Forward

目的:观察隐适美MA对青少年骨性Ⅱ类下颌后缩患者的应用价值及导下颌向前的矫治效果。方法:选取2017年7月-2019年7月本院治疗的40例青少年骨性Ⅱ类下颌后缩患者作为研究对象。按照随机数字表法分为观察组和对照组,各20例。观察组予以隐适美MA治疗,对照组予以Twin-block双合垫矫治器治疗。对比两组牙齿功能(语言功能、咀嚼功能及吞咽功能)评分、口腔健康影响程度量表(OHIP)评分,以及观察组治疗前后上牙槽座角(SNA)、下牙槽座角(SNB)、上下牙槽座角(ANB)、下颌平面角(GoGn-SN)、APDI值、ANS-Me。结果:观察组治疗后语言功能、咀嚼功能及吞咽功能评分依次为(4.35±0.30)、(4.33±0.39)、(4.29±0.36)分,高于对照组的(3.23±0.40)、(3.59±0.39)、(3.58±0.46)分,差异有统计学意义(P<0.05)。治疗后,观察组牙齿功能评分均高于对照组,差异有统计学意义(P<0.05)。治疗后两组OHIP量表各指标评分均较治疗前降低,观察组明显低于对照组(P<0.05)。治疗后,观察组SNB、APDI值、ANS-Me较治疗前明显增加、ANB明显缩小(P<0.05)。结论:青少年骨性Ⅱ类下颌后缩患者采用隐适美MA治疗,不仅可以改善患者牙齿功能,还可以在一定程度上诱导患者下颌向前,改变患者侧貌,效果显著,可以在临床推广使用。

Objective:In order to observe the application value of Yinshimei MA in the treatment of adolescent patients with skeletal classⅡmandibular retrusion and the effect of mandibular forward guidance.Method:A total of 40 adolescent patients with skeletal classⅡmandibular retrusion treated in our hospital from July 2017 to July 2019 were selected as the research objects.According to random number table method,they were divided into the observation group and the control group,with 20 cases in each group.The observation group was treated with Yinshimei MA,the control group was treated with Twin-block double pad orthosis.The dental function(speech function,chewing function and swallowing function),oral health impact profile(OHIP)scores between the two groups and sella nasion subspinale(SNA),sella nasion supramental(SNB),subspinale nasion supramental(ANB),GoGn-SN,APDI,ANS-Me of the observation group after treatment were compared.Result:The scores of speech function,chewing function and swallowing function in the observation group were(4.35±0.30),(4.33±0.39)and(4.29±0.36)points respectively,which were higher than(3.23±0.40),(3.59±0.39)and(3.58±0.46)points in the control group,the differences were statistically significant(P<0.05).After treatment,the scores of teeth function in the observation group were higher those in the control group,the differences were statistically significant(P<0.05).After treatment,the scores of OHIP of the two groups were decreased than those before treatment,and the scores of each standard in the observation group were significantly lower than those in the control group(P<0.05).After treatment,the SNB,APDI,ANS-Me in the observation group were significantly increased,while the ANB was significantly reduced(P<0.05).Conclusion:The treatment of Yinshimei MA can not only improve the teeth function,but also induce the mandible forward and change the side appearance of the patients to a certain extent.The effect is significant and can be popularized in clinical use.