在矫治牙颌畸形时,一般均需在矫治器上装置副簧以移动牙齿。副簧的形式是多种多样的,别针簧是副簧的一种形式,在结构上它是卷成1个或2—3个圈的簧所以又称为圈簧。在临床实践中,我们对别针簧的形式做了比较大的改进,除了简单别针簧外使用了双联、多联、变异、三联别针簧等。十 In the correction of dento-mandibular deformity, the general need to be installed in the appliance on the Deputy spring to move the teeth. The form of the secondary spring is varied and the pin spring is a form of the secondary spring. In the structure, it is a spring that is wound into one or two or three turns. Therefore, it is also called a coil spring. In clinical practice, we made a considerable improvement in the form of pin spring, in addition to a simple pin spring used in double, multi, variation, triple pin spring. ten