A New Concept of Horizontal Bone Augmentation Using Collagen Bovine Bone Blocks Without Membrane at Implant Placement: A Preliminary Study

Georges Khoury; Stephanie Mrad; Joseph Bassil; Nabil Ghosn; Ronald Younes

doi:10.1007/s12663-023-01917-4

A New Concept of Horizontal Bone Augmentation Using Collagen Bovine Bone Blocks Without Membrane at Implant Placement: A Preliminary Study

J Maxillofac Oral Surg. 2023 Dec;22(4):1099-1109. doi: 10.1007/s12663-023-01917-4. Epub 2023 Jun 3.

Authors

Georges Khoury¹, Stephanie Mrad², Joseph Bassil², Nabil Ghosn³, Ronald Younes^{2

3}

Affiliations

¹ Department of Advanced Surgical Implantology, Service of Odontology, U.F.R. of Odontology, Rothschild Hospital, AP-HP, University Denis Diderot, Paris, France.
² Department of Oral Surgery, Faculty of Dental Medicine, Saint Joseph University of Beirut, Campus of Medical Sciences, Damascus Road, Beirut, 1104 2020 Lebanon.
³ Cranio-Facial Research Laboratory, Faculty of Dental Medicine, Saint Joseph University of Beirut, Beirut, Lebanon.

PMID: 38105828
PMCID: PMC10719435 (available on 2024-12-01)
DOI: 10.1007/s12663-023-01917-4

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.

Keywords: Alveolar bone grafting; Bio-oss® Collagen; Bone graft; Bone regeneration; Collagen; Xenograft.

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