Professional paper
https://doi.org/10.15644/asc55/4/8
Volumetric Changes of a Customized Allogeneic Bone Block Measured by Two Image Matching Tools: Introduction of a Novel Assessment Technique for Graft Resorption
Oliver Blume
; Private Practice ‘Dres. Back & Blume’, Tal 13, 80331 Munich, Germany
Phil Donkiewicz
; Department of Oral Surgery and Dental Emergency Care, Faculty of Health, School of Dentistry, Witten / Herdecke University, North Rhine-Westphalia, Germany
Daniel Palkovics
; Department of Periodontology, Semmelweis University, Szentkirályi u. 47, 1088 Budapest, Hungary
Werner Götz
; Department of Orthodontics, Laboratory for Basic Research in Oral Biology, University of Bonn, Germany
Péter Windisch
; Department of Periodontology, Semmelweis University, Szentkirályi u. 47, 1088 Budapest, Hungary
Abstract
Objective: The purpose of this case report was to present a method for the assessment of volumetric changes of bone blocks during healing and demonstrate its practicability by analysing the resorption of a preshaped allogeneic bone block used for the reconstruction of a complex maxillary defect. Materials and methods: CBCT-scans of a 19-year-old male treated with an allogeneic bone block were recorded pre-OP, post-OP, and following six months of healing. Graft shrinkage was assessed via two image matching tools, namely coDiagnostiX® and Slicer. A biopsy specimen was harvested along the implant canal at the time of implantation. Results: The osseous defect was successfully restored and advanced graft remodelling was found upon re-entry as confirmed by the histomorphometric and histologic analysis. The initial volumes of the graft determined via coDiagnostiX® and Slicer were 0.373 mL and 0.370 mL., respectively, while graft resorption after six months of healing was 0.011 mL (3.00%) and 0.016 mL (4.33%). Conclusions: The avoidance of bone harvesting and reduction of invasiveness display an important issue in dentoalveolar restorations. However, before grafting materials can be considered a safe alternative, understanding their clinical performance, especially resorption stability, is pivotal. The present case report demonstrates a limited resorption of the allogeneic bone block and further emphasizes the practicability of determining bone resorption by the here introduced method. As our investigation comprises solely one subject, the results should be considered with care and substantiated by further studies.
Keywords
MeSH terms: Bone Transplantation; Allografts; Bone Substitutes Author keywords: Allogeneic Bone Graft; Bone Block; Graft Resorption; Biomaterials; Bone Grafting; Freeze-dried Bone Allograft
Hrčak ID:
267611
URI
Publication date:
17.12.2021.
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