传统弓

传统的升弓装置是采用直流电动机驱动压缩机作为压缩空气源。

Traditionary , the pantograph rising device uses a DC motor-driven compressor as the force of compressed air .

相对于传统直丝弓托槽，最新的自锁托槽不仅吸收了直丝弓托槽在正畸治疗中表现的大部分特点和能力，而且具备传统直丝弓托槽所没有的诸多优点。

Compared with traditional straight wire bracket , the latest self-ligating brackets not only absorbed straight wire brackets in the orthodontic treatment in the majority of characteristics and performance capabilities , but with many advantages which traditional straight wire bracket does not have .

目的：将传统口内牙弓夹板石膏帽固定法加以改进，治疗上颌骨骨折。

Objective : A modification of the traditional arch wire splint craniomandibular elastic traction in maxilla fracture reduction , observation the effectiveness .