Forsus矫治器治疗发育高峰后期下颌后缩的疗效评价

目的:评价Forsus矫治器治疗生长发育高峰后期下颌后缩患者的临床效果、颅面软硬组织的改变。方法:应用Forsus矫治器对15例生长发育高峰后期的安氏Ⅱ类下颌后缩畸形患者进行矫治,进行上、下颌尖牙及磨牙间宽度测量,填写问卷调查表和治疗前、后的头影测量侧位片分析。采用SPSS10.0软件包对所得数据进行配对t检验。结果:SNB增加1.42°,ANB角减小1.65°,面突角减小2.12°,颏唇沟深度减小2.27mm,覆盖减小4.98mm,磨牙关系改善3.78mm。上切牙内收,下切牙唇倾;牙弓宽度增大。基本无异物感,不影响口腔功能。结论:Forsus矫治器能够有效促进下颌生长、改善磨牙远中关系及Ⅱ类软组织面型,适用于生长发育高峰后期患者的治疗。

Treatment of mandibular retrusion patients with Forsus appliance following growth spurts

PURPOSE: To evaluate the clinical effects of Forsus appliance in treatment of patients with mandibular retrusion after the growth spurts. METHODS: 15 cases of Class II malocclusion with small lower jaw were treated with Forsus appliance. Cephalogram pre-and post-treatment was taken,the width of dental arch was measured, and questionnaire were collected from the patients. SPSS10.0 software package was used for paired t test. RESULTS: SNB increased 1.42 degrees, ANB reduced 1.65 degrees, and Forsus appliance brought about 2.12 degrees reduction of the facial soft tissue profile convexity. The width of dental arch was extended. Overbite reduced and overjet went down 4.98 mm. CONCLUSIONS: Forsus appliance can improve sagittal discrepancy and soft tissue profile convexity of patients with Class II malocclusion.