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目的:研究头帽-肌激动器-下唇挡矫治器治疗生长发育期安氏Ⅱ类1分类错对骨骼、牙齿和软组织的影响。方法:选择20例安氏Ⅱ类1分类患者,随机分两组分别采用头帽-肌激动器-下唇挡矫治器和头帽-肌激动器-进行治疗,常规拍摄治疗前后的头颅侧位片进行分析,对结果进行T检验。结果:Pg/OLP显著增加,SiLiPg明显减少。结论:头帽-肌激动器-下唇挡矫治器组能更好的刺激下颌的发育,明显改善患者侧貌。
OBJECTIVE: To study the effects of headgear-muscle exciter-lower lip-stop appliance on skeletal, dental, and soft tissue in the growth and development of Class Ⅱ division 1 malocclusion. Methods: Twenty patients with Class Ⅱ division 1 malocclusion were selected and randomly divided into two groups: headgear-muscle exciter-lower lip-stop appliance and headgear-muscle actuator. Analysis of the film, the results of T test. Results: Pg / OLP significantly increased, SiLiPg significantly reduced. Conclusion: The head cap - muscle actuator - lower lip appliance group can better stimulate the development of the mandible and significantly improve the appearance of the patient.