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目的 :评价Forsus矫治器治疗青少年生长发育高峰后期安氏Ⅱ类错畸形的临床效果。方法 :应用Forsus矫治器对22例生长发育高峰后期安氏Ⅱ类错畸形青少年患者进行矫治,治疗前、后进行X线头影测量分析,评价其疗效。采用SPSS14.0软件包对所得数据进行配对t检验。结果:经过6~8个月(平均7.2个月)的治疗,SNB角增加(1.4±0.002)°,前牙覆、覆盖分别减少(5±0.000)mm和(5.5±0.000)mm,磨牙达到Ⅰ类关系,下前牙唇倾(1.3±0.005)°,上前牙舌倾(1.5±0.004)°,差异均具有显著性(P<0.05)。结论:Forsus矫治器能有效促进生长发育高峰后期下颌骨的生长,改善安氏Ⅱ类错的磨牙关系和侧貌。
OBJECTIVE: To evaluate the clinical effect of Forsus appliance in the treatment of Class Ⅱ malocclusion in post-peak adolescent growth and development. Methods: Twenty-two adolescents with Class Ⅱ malocclusion were treated with Forsus appliance. Before and after treatment, X-ray cephalometric analysis was performed to evaluate the efficacy. The data was paired t-test using SPSS14.0 software package. Results: After 6 to 8 months (average 7.2 months), the SNB angle increased (1.4 ± 0.002) ° and the thickness of the anterior lamina was (5 ± 0.000) mm and (5.5 ± 0.000) mm, respectively The relationship between type Ⅰ and type Ⅰ was significant (P <0.05). The inclination of the anterior lip was (1.3 ± 0.005) ° and the angle of the anterior tooth was 1.5 ± 0.004 °. Conclusion: The Forsus appliance can effectively promote the growth of the mandible at the late peak of growth and improve the molar relationship and profile of Class Ⅱ malocclusion.