Abstract
Purpose
A buccal bone thickness (BBT) of at least 1.8–2 mm is necessary to ensure long-term implant stability, and a bone grafting procedure is commonly needed to restore this BBT. This study aims to prove the effectiveness of a novel bone augmentation technique in which minero-organic bone substitutes are solely used to restore adequate BBT, excluding the need for coverage membranes.
Methods
Fifty partially edentulous patients having a residual bone width ranging between 5 and 6 mm were enrolled in this study. The horizontal buccal defects were grafted simultaneously at implant placement. Minero-organic collagen bovine bone blocks (CBBB) were placed on the outer side of the buccal bone wall, and adapted to the defect morphology through slow compressive movements. The grafted sites were not covered with any type of membrane nor stabilized with fixation pins. Cone-beam computed tomography scans were obtained pre-operatively, immediately post-surgery, and four months later. Scans were superimposed on the ITK-Snap software to measure the amount of bone gain and assess the percentage of CBBB resorption. Measurements were effectuated at four different levels apically to crestal level.
Results
Radiographic findings showed BBT increase and CBBB resorption in all cases, four months post-grafting. A mean horizontal bone gain of 1.39 mm was calculated at a crestal level.
Conclusion
Based on these findings, it appears that this novel and user-friendly bone grafting technique can achieve positive outcomes from both clinical and radiographic perspectives.
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Acknowledgements
This research was supported by Geistlich Pharma AG. The authors have no conflict of interest related to this study.
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GK contributed to Conceptualization, Methodology, Supervision, Validation. SM contributed to Data curation, Writing-original draft preparation. JB contributed to Writing-reviewing and editing, Validation. NG contributed to Data curation, Methodology. RY contributed to Conceptualization, Methodology, Supervision, Validation.
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This study was performed in line with the principles of the Declaration of Helsinki. Approval was granted by the Ethics Committee of Saint Joseph University (IRB: USJ-2019–112), and was registered in the clinical trials register (NCT04338139).
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Khoury, G., Mrad, S., Bassil, J. et al. A New Concept of Horizontal Bone Augmentation Using Collagen Bovine Bone Blocks Without Membrane at Implant Placement: A Preliminary Study. J. Maxillofac. Oral Surg. 22, 1099–1109 (2023). https://doi.org/10.1007/s12663-023-01917-4
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DOI: https://doi.org/10.1007/s12663-023-01917-4