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Spontaneous regeneration of bone following mandibular ramus bone harvesting: a CBCT analysis

International Journal of Oral and Maxillofacial Surgery, ISSN: 0901-5027, Vol: 53, Issue: 10, Page: 853-859
2024
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Article Description

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.

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