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目的:探讨Dynamax矫治器治疗早期安氏Ⅱ类1分类错患者的疗效。方法:应用Dynamax矫治器对15例Hagg手腕骨片为FG-G期的安氏Ⅱ类1分类下颌后缩患者进行治疗,拍摄治疗前后的头颅侧位片,并应用Winceph7.0头影测量软件进行测量和分析。结果:Dynamax矫治器治疗后,SNB角、下颌骨综合长度、下切牙唇倾度、鼻唇角增大;ANB角、Wits值、上前牙唇倾度、前牙覆盖、覆、面凸角、ANB减小,以上变化均有统计学意义(P<0.05)。结论:Dynamax功能矫治器促进下颌发育能有效的改善面部美观,使软硬组织侧貌面型趋于正常。
OBJECTIVE: To investigate the efficacy of Dynamax appliance in the treatment of early Class Ⅱ division 1 malocclusion patients. Methods: Fifteen patients with Hagg wrist fragment with FG-G Class Ⅱ division 1 mandibular retrusion were treated with Dynamax appliance. The cephalometric images were taken before and after treatment. The patients were treated with Winceph 7.0 cephalometric software Measure and analyze. Results: After treatment with Dynamax appliance, SNB angle, combined mandibular length, lower incisor lip inclination and nasolabial angle increased; ANB angle, Wits value, anterior lip inclination, anterior tooth cover, Angle, ANB decreased, the above changes were statistically significant (P <0.05). Conclusion: The Dynamax appliance can promote the development of the jaw effectively to improve the facial appearance, and make the facial appearance of soft and hard tissues tend to be normal.