%0 Case Reports %T [Experience of secondary orthodontic treatment in an adolescent case of skeletal class Ⅱ]. %A Kou BG %A Xu YM %A Zhang ZY %A Feng YL %A Ma HX %A Gu ZX %J Zhonghua Kou Qiang Yi Xue Za Zhi %V 56 %N 1 %D Jan 2021 9 %M 34645243 暂无%R 10.3760/cma.j.cn112144-20200318-00159 %X 本文报道1例青少年骨性Ⅱ类错牙合患者的二次矫治过程,一期矫治阶段主要纠正口腔不良习惯,二期固定矫治阶段上下牙列排齐后,通过头帽-口外弓牵引,用矫形力抑制上颌生长,最终实现患者咬合及面型的良好改善。.