恒牙初期Ⅱ类1分类错患者唇形的研究
吴艳 邓潇 陈嵩
The analysis of lip contour of Class Ⅱ division 1 malocclusion in the early permanent dentition
WU Yan1, DENG Xiao1, CHEN Song2
华西口腔医学杂志 . 2010, (05): 495 -497 .