The structural theory and fabrication of a self-designed rotating auxiliary spring in edgewise technique were described.Rotating auxiliary spring was applied to correct rotated tooth in clinic.

• 介绍一种自行设计的适用于方丝弓矫治技术的扭转辅簧的结构原理和制作方法,并将其应用于临床上扭转牙的矫治。