Twin-block矫治器(TBA)是Clark[1]于1982年为弥补肌激动器不足而发明的可全天戴用的功能矫治器,主要用于安氏Ⅱ1错(?)矫治,近年来逐步得到重视。Chadwick[2]调查英国各类功能矫治器应用情况,结果表明TBA受正畸科医生欢迎程度最高。其基础源于Activator矫治器和黯垫矫治器,将(?)垫、口外力、夜间牵引力、功能矫形力巧妙地结合在一起,也可与磁体相结合形成双阻板磁力功能矫治器(Twin-block magnetic Twin-block appliance (TBA) is Clark [1] in 1982 to make up for the lack of muscular exciters and can be worn all-day functional appliance, mainly for the treatment of Angle Ⅱ 1 fault (?), In recent years gradually Receive attention. Chadwick [2] to investigate the application of various types of functional appliances in the United Kingdom, the results show that TBA orthodontic surgeons the highest degree of welcome. Based on the Activator appliance and mattress appliance, it combines the matting, external force, nighttime traction and functional orthopedic skillfully. It can also be combined with a magnet to form a Twin -block magnetic