Department of Orthodontics, School of Dentistry, University of Wonkwang, Iksan/Wonkwang Dental Research Institute/Wonkwang Bone Regeneration Research Institute/Korean Orthodontic Research Institute, Daejeon, Korea.
Am J Orthod Dentofacial Orthop. 2012 Feb;141(2):e39-51. doi: 10.1016/j.ajodo.2011.06.046.
This case report describes the treatment of a boy, aged 13.6 years, whose ankylosed maxillary left central incisor had been avulsed and replanted 2.5 years earlier. Ankylosis of the tooth and adjacent alveolar process led to the development of infraocclusion, migration of adjacent teeth, midline deviation, and a vertical alveolar bone defect. Initially, distal tooth movement in the maxillary arch was performed with microimplant anchorage to gain space for repositioning the ankylosed tooth. Then a single-tooth osteotomy was performed in 1 surgical stage to allow for inferior repositioning of the tooth and bone. The ankylosed tooth was successfully leveled in the maxillary arch with a harmonic gingival margin. The total treatment period was 18 months, and the results were acceptable at 14 months after debonding.
本病例报告描述了一名 13.6 岁男孩的治疗过程，他的左上恒中切牙曾因外伤完全脱位，2.5 年前再植。由于牙和相邻牙槽骨发生了骨性粘连，导致该牙出现了低咬合、邻牙移位、中线偏斜和牙槽骨垂直缺损。最初，通过微种植体支抗在上颌弓中进行远中牙齿移动，以获得重新定位粘连牙的空间。然后在 1 个手术阶段中进行单牙骨切开术，以允许牙和骨的向下重新定位。通过 harmonic 牙龈边缘成功地将粘连牙在上颌弓中排齐。总治疗周期为 18 个月，在拆除粘结后的 14 个月时结果可接受。
