Department of Paediatric Dentistry, School of Dentistry, University of Seville, Carretera Avicena s/m, Seville, Spain.
Int Endod J. 2012 Jan;45(1):88-97. doi: 10.1111/j.1365-2591.2011.01951.x. Epub 2011 Sep 11.
This retrospective case-series study aimed to examine the long-term outcomes of autogenously transplanted premolars.
Twelve patients in whom donor premolars were used to replace maxillary central incisors lost by trauma were clinically and radiologically monitored. Standardized clinical and radiographic records were systematically obtained during the follow-up period of 14 years, to determine the influence of specific clinical criteria on the overall success rate of transplantation.
The success rate of premolar autotransplantation in the maxillary central incisor area was 80% after 14 years follow-up. The highest success rate occurred in those teeth transplanted with two-thirds of full root development. Complete pulp obliteration was positively related to autotransplant viability, followed by root formation in the bony crypt.
Autotransplantation of donor teeth, at the stage of ½ to ¾ of their expected root length, can provide a successful treatment solution for over 14 years.
本回顾性病例系列研究旨在探讨自体移植前磨牙的长期疗效。
临床和影像学监测了 12 名因外伤导致上颌中切牙缺失而采用自体前磨牙作为供体牙的患者。在 14 年的随访期间，系统地获得了标准化的临床和影像学记录，以确定特定临床标准对移植整体成功率的影响。
14 年后，上颌中切牙区前磨牙自体移植的成功率为 80%。移植时具有 2/3 完整牙根发育的牙齿成功率最高。完全牙髓闭塞与自体移植活力呈正相关，其次是在牙槽骨隐窝中形成牙根。
在预期根长的 1/2 到 3/4 阶段，自体供体牙移植可为患者提供超过 14 年的成功治疗方案。
