活动式前牵引矫治器口内固位装置改进的临床研究

张慧刘钧范晓枫赵青张景慧赵志河

Modified r etention elements of r emovable r ever se headgear appliances

ZHANG Hui1, LIU Jun2, FAN Xiaofeng2, ZHAO Qing2, ZHANG Jing- hui1, ZHAO Zhi- he2

华西口腔医学杂志 . 2008, (03): 306 -307 .