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采用改良肌激动器结合头帽牵引矫治安氏Ⅱ类1分类错患者，利用功能和机械性的矫治作用，在儿童的生长快速期进行预防性、阻断性治疗，从而有效地抑制上颌的不利生长，减小上颌突度，刺激下颌生长，使下颌的水平向生长趋向正常。
Patients with Angle Class II Division 1 malocclusion using modified muscle agonist combined with headgear traction are treated with functional and mechanical corrections to prevent and block the treatment of the child during the rapid growth phase of the child. Growth, reduction of maxillary protrusion, stimulation of mandibular growth, so that the mandibular horizontal growth tends to normal.