在正畸矫治的后期 ,常常出现双尖牙牙合接触欠佳甚至无牙合接触、而前牙覆牙合覆盖正常、磨牙为中性牙合关系的情况。笔者设计了一种利用细圆丝小摇椅弓加前牙轻力垂直牵引来改善后牙牙合接触并建立完美Ｔｗｅｅｄ牙合的方法 ,现就临床应用情况报告如下。　一、材料和方法1.样 In the latter part of orthodontic treatment, there is often a lack of contact between the bicuspids and even the occlusal anterior contact, while the anterior teeth cover the occlusal and occlusal coverage is normal, and the molar is the neutral occlusal relationship. The author has designed a use of small round bow small bow plus light vertical traction of the anterior teeth to improve posterior teeth occlusal contact and the establishment of a perfect Tweed method of occlusion, are reported on the clinical application is as follows. First, materials and methods