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首页> 外文期刊>International endodontic journal >Autotransplantation of an ectopic impacted premolar with sinus lift and allogenic bone graft.
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Autotransplantation of an ectopic impacted premolar with sinus lift and allogenic bone graft.

机译：自体异位手术前磨牙的窦举和异体骨移植。

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AIM: This article presents a case report of autogenous tooth transplantation to a site which had insufficient bone volume using a sinus lift and allogenic bone graft. SUMMARY: An ectopic, fully impacted premolar tooth was autotransplanted from its ectopic impaction site into its original site, where there was insufficient recipient vertical bone volume because of sinus expansion. The deciduous tooth was extracted from the recipient site, and the sinus membrane detached and elevated via the alveolar socket. Allogenic bone grafting was performed, and the impacted premolar was transplanted into the prepared site. To improve adaptation, the recipient site was prepared using a rapid prototype tooth model, a replica tooth which allowed complete socket preparation in advanced of the actual removal of the donor tooth. The donor tooth was fixed with sutures and maintained for 17 days to allow physiologic movement. Root canal treatment was initiated 24 days after autotransplantation, and an intra-canal medicament was used for 4 months. Canal filling was completed 5 months after autotransplantation. There was no root resorption of the transplanted tooth, and the grafted bone was well preserved and had no signs of infection. KEY LEARNING POINTS: When the recipient bone volume is insufficient, autotransplantation can be preceded by bony augmentation. The preparation of the recipient tooth socket using a tooth replica from CBCT reduces the extra-oral time of the actual tooth and promotes better periodontal ligament healing. Careful evaluation of the pulp status of the donor tooth is important in advance of timely endodontic treatment.
机译：目的：本文介绍了使用鼻窦移位和异体骨移植将自体牙移植到骨量不足的部位的一例病例报告。摘要：将异位，完全受累的前磨牙从异位受累部位自动移植到原始部位，该部位由于窦扩张而没有足够的受体垂直骨量。从受者部位拔出乳牙，并通过牙槽窝分离并升高窦膜。进行同种异体骨移植，然后将受影响的前磨牙移植到准备好的部位。为了改善适应性，使用快速原型牙齿模型（复制牙齿）来准备受体部位，该复制牙齿允许在实际去除供体牙齿之前进行完整的窝准备。用缝线将供体牙齿固定并保持17天，以允许生理运动。自体移植后24天开始进行根管治疗，并使用根管内药物治疗4个月。自体移植后5个月便完成了根管充填。移植牙没有牙根吸收，并且移植骨保存完好，没有感染迹象。学习要点：当受体骨体积不足时，可以在进行自体移植之前先进行骨增强。使用来自CBCT的牙齿复制品准备接收者的牙槽，可以减少实际牙齿的口腔外时间，并促进更好的牙周膜愈合。在及时进行牙髓治疗之前，仔细评估供体牙齿的牙髓状态很重要。

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