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固定矫治技术治疗牙颌畸形，常常需要打开咬合，咬合打开快慢决定了矫治时间。临床上发现，用国产弓丝弯制后倾曲打开咬合，时间长，有时发生支抗磨牙倾斜和松动。为提高国产弓丝疗效，防止支抗磨牙倾斜，我们在Ｂｅｇｇ矫治技术中，设计带螺圈簧的弓丝打开咬合，治疗牙颌...
Fixed orthodontic treatment of dentition deformities, often need to open the bite, occlusal open to determine the speed of correction time. Clinically found that the use of home-made curved wire bending open the bite, a long time, and sometimes the occurrence of tilt and loose support molar. In order to improve the curative effect of home-made archwire and prevent the tilt of supporting molars, we design the archwire with coil spring to open the bite in the treatment of Begg.