Department of Oral and Maxillofacial Surgery, School of Dentistry, University of Marmara, Maltepe, Istanbul, Turkey.
Department of Oral and Maxillofacial Surgery, School of Dentistry, University of Marmara, Maltepe, Istanbul, Turkey.
Int J Oral Maxillofac Surg. 2024 Oct;53(10):853-859. doi: 10.1016/j.ijom.2024.05.006. Epub 2024 Jun 4.
The aim of this study was to evaluate healing at the donor site following autogenous block graft harvesting from the mandibular ramus. In this retrospective study, cone beam computed tomography images taken at different time-points were examined, and the volumes of preoperative and postoperative regions of interest were calculated in the software. Images were classified into four groups: 0-3 months, 4-6 months, 7-12 months, and >12 months post-surgery. To characterize the healing process over time, statistical analyses were conducted for both the 70% and 80% healing thresholds. Nearly half (n = 15, 47%) of the 32 patients included in this study achieved 70% bone healing within 4-12 months post-surgery. At the end of the 28-month period covered by this study, 21 patients (66%) had achieved 70% bone healing. The median time to achieve 70% healing was 9 months, while the median time to achieve 80% healing was 28 months. The findings of this study validate the feasibility of reutilizing the mandibular ramus area for additional bone augmentation when other intraoral sites are unavailable.
本研究旨在评估下颌支自体块状移植物采集后供区的愈合情况。在这项回顾性研究中，检查了在不同时间点拍摄的锥形束计算机断层扫描图像，并在软件中计算了术前和术后感兴趣区域的体积。图像被分为四组：术后 0-3 个月、4-6 个月、7-12 个月和>12 个月。为了描述随时间推移的愈合过程，对 70%和 80%愈合阈值均进行了统计分析。在本研究纳入的 32 名患者中，近一半（n=15，47%）在术后 4-12 个月内达到了 70%的骨愈合。在本研究涵盖的 28 个月期间结束时，21 名患者（66%）达到了 70%的骨愈合。达到 70%愈合的中位数时间为 9 个月，而达到 80%愈合的中位数时间为 28 个月。本研究的结果验证了在其他口腔内部位不可用时，重新利用下颌支区域进行额外骨增量的可行性。
