Outcomes and prognostic factors that influence the success of tooth autotransplantation in children and adolescents
Outcomes and prognostic factors that influence the success of tooth autotransplantation in children and adolescents
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DOI：
10.1111/edt.12353
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发表时间：
2017-10-01
影响因子：
2.5
通讯作者：
Duggal, Monty
中科院分区：
文献类型：
--
作者：
Kafourou, Vasiliki;Tong, Huei Jinn;Duggal, Monty
背景/目的自体牙齿移植已被提倡用于替换缺失的牙齿或不适合修复的牙齿。本研究的目的是探讨影响儿童牙齿移植成功的因素和结果。材料和方法从75例患者(89颗牙齿)的记录中提取数据。结果移植时平均年龄为13.2岁，平均随访时间为2.61.8年(12.0个月~9.9年)。移植的主要原因是修复因牙科创伤、牙缺失、牙体扩张而丢失或缺失的上中切牙。在接受牙髓血管重建监测的45颗牙齿中，75.6%的牙齿显示出牙髓愈合的临床和放射学迹象，24.4%的牙齿显示出牙髓坏死和感染的迹象。牙髓愈合与移植物的根发育阶段显著相关。87.6%的移植物PDL愈合良好，13.5%的移植物有替代吸收迹象。PDL的愈合与移植牙在手术时的牙根形成阶段、牙齿的操作和放置的容易程度以及手术时受牙部位的牙槽骨状况有显著关系。牙移植成功率87.6%，成活率94.4%。结论儿童青少年牙齿移植成功率高，成活率高，牙根发育阶段影响移植牙牙髓和牙髓的愈合。
Background/AimTooth autotransplantation has been advocated for replacement of missing teeth or teeth that are unsuitable for restoration. The aim of this study was to investigate the outcomes and prognostic factors that influenced the success of tooth transplantation in a paediatric population.Materials and MethodsData were extracted from the records of 75 patients (89 teeth). Demographic and prognostic factors were recorded and analysed for the clinical and radiographic outcomes for periodontal ligament (PDL) and pulp healing of transplanted teeth.ResultsThe mean age at transplant was 13.2years, and the mean follow-up observation period was 2.61.8years with a range of 12.0months to 9.9years. The main reason for transplantation was to replace upper central incisors lost or missing due to dental trauma, hypodontia and dilaceration. Of the 45 teeth that were monitored for pulp revascularization, 75.6% showed clinical and radiographic signs of pulp healing and 24.4% showed signs of pulp necrosis and infection. Pulp healing was significantly related to the stage of root development of the transplant. Favourable PDL healing was observed in 87.6% of the transplants, while 13.5% showed signs of replacement resorption. PDL healing was significantly related to the stage of root formation of the transplanted tooth at the time of the surgery, the ease of handling and placement of the tooth, and the status of the alveolar bone at the recipient site at the time of the surgery. Overall success of tooth transplantation was 87.6%, and the survival rate was 94.4%.ConclusionsTooth transplantation carried out in children and adolescents demonstrated high success and survival, with the stage of root development influencing both the pulp and PDL healing of the transplanted teeth.