作者介绍一种将Ni-Ti丝粘接在下颌3-3舌侧作为永久性固定保持器并矫正下前牙拥挤复发的新技术。其操作方法为:参照最初矫治结束后病例模型的前段弓型选择与之匹配的0.46 mm(0.018英寸)Ni-Ti圆丝,在常规清洁隔湿酸蚀后,用结扎丝穿过前牙邻间隙将Ni-Ti丝松固定于前牙舌侧,然后从一侧尖牙舌侧开始粘接,采用光固化粘接剂依次粘接至另一侧尖牙为止。对于错位明显的牙 The authors describe a Ni-Ti wire bonded to the lingual mandibular 3-3 as a permanent fixation and correction of crowding the recurrence of anterior teeth under the new technology. The operation is as follows: Referring to the 0.46 mm (0.018 in.) Ni-Ti round wire matched with the arch type in the anterior arch of the case model after the initial treatment, The gap Ni-Ti loosening the pineal lingual front side, and then from the side of the canine tongue side of the bonding, using light-curing adhesive followed by bonding to the other side of the canine so far. For dislocation obvious teeth