目的:观察冠根折至龈下的前牙正畸牵引联合修复治疗方法的临床疗效.方法:将患牙进行完善根管治疗后在根管内粘固长度小于根长1/2的0.5mm的不锈钢丝,在两侧健康牙面上粘托槽,采用不锈钢方丝作主弓丝并加牵引钩,链状橡皮圈牵引.3个月后牙根牵引到位,6个月后行桩冠修复.结果:2005～2009年共治疗36颗患牙,其中1颗失败,其余治疗效果满意.结论:对于前牙冠根折至龈下的病例,采用正畸牵引后桩冠修复的方法可以增加保留机会,获得较为满意的功能和美学效果.%Objective To investigate the subgingival crown-root fracture to the anterior joint repair orthodontic treatment of clinical efficacy. Methods To perfect teeth after root canal therapy root canal cements in the length of the root length is less than 1/2 0.5mm stainless steel wire,the surface of healthy teeth on both sides stick brackets, stainless steel arch wire square wire decide plus towing hooks,chain rubber band traction. After the root traction in place in March,six months underwent post crown. Results 36 teeth were treated in 2005 to 2009,of which one failed, the other therapeutic effect. Conclusion For the first to subgingival crown-root fracture cases, the use of orthodontic traction after the crown after ways to increase the retention opportunities, access to satisfactory functional and aesthetic results.
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