近 2年来本文作者应用口外唇弓辅以内弓镍钛螺簧 ,配合 类颌间牵引 ,矫治轻中度安氏 1类牙列拥挤取得了良好的矫治效果 ,矫治后软组织侧貌发生了明显的改变 ,软组织更加协调美观 ,现报道如下。1　资料与方法　 1病例选择 :选择来本院就诊的 6例安氏 1类轻中度牙列拥挤病人 , The past two years, the author of the application of oral lip and bow with bow nickel-titanium coil spring, with intermaxillary traction, correction of mild to moderate Angle 1 Class dentition crowded achieved good correction effect, the soft tissue profile after correction occurred obvious Change, soft tissue more harmonious beauty, are reported below. 1 Materials and Methods 1 Case Selection: Select 6 cases of Class 1 mild to moderate dentition crowded patients,