Z2矫治器——基于正常中国人牙齿特征的直丝弓矫治器
曾祥龙 高雪梅
Z2 appliance:The pre-adjusted appliance based on Chinese normal occlusion
ZENG Xiang-long, GAO Xue-mei
华西口腔医学杂志 . 2008, (06): 573 -579 .