1994年以来我科用牙合向牵引法治疗前牙牙折至龈下2～ 5ｍｍ的病例 ,取到较满意的效果 ,报告如下。1　病例选择前牙牙折至龈下 2～ 5ｍｍ ,牙根较稳定 ,无根尖折断且牙根长度与修复后的牙冠龈距的比例≥ 1,共 76例 98个患牙。其中上颌 82个 ,下颌 16个 ;中切牙 64个 ,侧切牙 19 Since 1994, our department orthodontic traction method to treat the anterior teeth tooth fracture to subgingival 2 ~ 5mm cases, to obtain more satisfactory results, the report is as follows. 1 cases of anterior teeth tooth fracture to subgingival 2 ~ 5mm, more stable roots, no root tip fracture and the root length and the restoration of the crown of the ratio of ≥ 1, a total of 76 patients with 98 teeth. Among them, there are 82 maxillas and 16 mandibular teeth, 64 incisors and 19 lateral incisors