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目的应用Forsus治疗已过生长发育高峰期安氏Ⅱ类错下颌后缩恒牙期患者,探讨其牙弓及基骨弓宽度的变化。方法临床选择45例(男20例,女25例)恒牙期安氏Ⅱ类错下颌后缩患者,年龄15~16.5岁。戴用Forsus矫治器前后制取牙颌模型,测量牙弓及基骨弓宽度。用Spss15.0统计软件对治疗前后的测量结果进行配对t检验。结果戴用Forsus矫治器前后牙弓及基骨弓宽度均增加。结论 Forsus矫治器可用于牙弓狭窄患者的扩弓治疗,但扩弓后的远期疗效和稳定性还有待进一步研究。
Objective To investigate the changes of dental arch and basement arch width after treatment with Forsus in patients with mandibular retentive permanent dentition who have passed the peak of growth and development. Methods Clinical data of 45 patients (20 males and 25 females) with mandibular retrusion of Class Ⅱ malocclusion in permanent dentition were enrolled in this study. The patients were aged 15-16.5 years. Dental models were prepared before and after wearing Forsus appliance, and the widths of dental arch and basement arch were measured. Spss15.0 statistical software before and after treatment of the measurement results were paired t test. Results Before and after wearing Forsus appliance, the width of dental arch and basement arch increased. Conclusion Forsus appliance can be used in the treatment of patients with stenosis. However, the long-term efficacy and stability of the Forsus appliance remain to be further studied.