Bulletin of Stomatology and Maxillofacial Surgery
ISSN 1829-006X
2025; 235–241
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THE EFFECT OF DIFFERENT RECONSTRUCTION PARAMETERS ON CONE BEAM CT IN THE ASSESSMENT OF TRABECULAR BONE MICROSTRUCTURE AT PLANNED DENTAL IMPLANT SITES

Mohamed Gamal Saad Elbanna*, Gihan Omar, Hany Omar, Ahmed Hossam

he Department of Oral & Maxillofacial Radiology, Faculty of Dentistry, Cairo University, Egypt. Assistant lecturer at Oral and Maxillofacial Radiology Department Faculty of Dentistry MSA University, Cairo, Egypt · Professor of Oral & Maxillofacial Radiology Department, Faculty of Dentistry, Cairo University, Cairo, Egyp · Oral & Maxillofacial Radiology Department, Faculty of Dentistry, Cairo University, Cairo, Egypt · Oral & Maxillofacial Radiology, Faculty of Dentistry, MSA University, Cairo, Egypt.

Received: 2026-04-08 · Published: 2025-06-30

© 2025 The Author(s) and the original publisher.

CC BY-NC 4.0 This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.
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Original title
THE EFFECT OF DIFFERENT RECONSTRUCTION PARAMETERS ON CONE BEAM CT IN THE ASSESSMENT OF TRABECULAR BONE MICROSTRUCTURE AT PLANNED DENTAL IMPLANT SITES
Authors
Mohamed Gamal Saad Elbanna, Gihan Omar, Hany Omar, Ahmed Hossam
Source journal
Bulletin of Stomatology and Maxillofacial Surgery
Published
2025-06-30
Licence
Creative Commons Attribution-NonCommercial 4.0 International
Original
https://doi.org/10.58240/1829006X-2025.21.5-235

Abstract

Background:Cone beam computed tomography (CBCT) has become a valuable tool for evaluating trabecular bone microarchitecture before implant placement. However, CBCT-derived measurements may be influenced by reconstruction parameters such as voxel size and threshold level, potentially affecting the reliability of clinical assessments. Objectives:This study aimed to evaluate the impact of CBCT reconstruction voxel size and threshold values on the measurement of trabecular bone microstructure to guide accurate image processing and interpretation. Materials and Methods:Twenty-seven patients underwent CBCT scanning with a standard acquisition voxel size of 75 μm³. The images were reconstructed at voxel sizes of 75, 115, and 150 μm³ to assess the influence of reconstruction resolution. Additionally, the effect of threshold variation was examined by modifying the global threshold value by ±15%. Trabecular parameters including bone volume fraction (BV/TV), trabecular thickness (Tb.Th), trabecular number (Tb.N), and trabecular separation (Tb.Sp) were analyzed using CTAnalyser software. Statistical evaluation was performed using one-way ANOVA with Tukey’s post hoc test (p < 0.05). Results:Reconstruction voxel size had no significant effect on BV/TV, Tb.Th, or Tb.Sp, but Tb.N differed significantly between the 75 µm and 150 µm voxel sizes (p = 0.010). In contrast, threshold variation significantly affected all trabecular parameters (p < 0.001), with all pairwise comparisons showing statistical significance. Conclusion:While CBCT reconstruction voxel size showed limited influence on trabecular metrics, threshold level had a major effect on all measured parameters. These findings emphasize the importance of threshold standardization in clinical CBCT analysis.
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