高效改正单个牙转矩的门形辅弓

李宇关宇潘兰兰赵志河

A gate spring which can torque an individual tooth with high efficiency

Li Yu1, Guan Yu1, Pan Lanlan2, Zhao Zhihe1

华西口腔医学杂志 . 2012, (2): 222 -223 . DOI: 10.3969/j.issn.1000-1182.2012.02.028