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The International Journal of Oral & Maxillofacial Implants



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Int J Oral Maxillofac Implants 23 (2008), No. 1     15. Jan. 2008
Int J Oral Maxillofac Implants 23 (2008), No. 1  (15.01.2008)

Page 111-116, PubMed:18416419

GBR and Autogenous Cortical Bone Particulate by Bone Scraper for Alveolar Ridge Augmentation: A 2-Case Report
Trombelli, Leonardo / Farina, Roberto / Marzola, Andrea / Itro, Angelo / Calura, Giorgio
Scientific literature describes autogenous bone as the gold standard among graft materials for alveolar reconstructive procedures. Alveolar ridge augmentation has been clinically achieved with different forms of autogenous bone, including autogenous cortical bone particulate (ACBP). However, few histologic studies demonstrating the biologic potential and healing dynamics following the use of ACBP are currently available. This case report presents 2 patients in whom atrophic edentulous alveolar crests were submitted to a vertical/lateral ridge augmentation prior to implant placement. The technique was performed through the use of a titanium-reinforced expanded polytetrafluoroethylene (e-PTFE) membrane with an ACBP graft obtained from the retromolar region with a specially designed bone scraper. Bone biopsy specimens were harvested at 9 months after graft placement. Analysis of the reconstructed bone revealed bone with a lamellar quality characterized by a mature osteonic structure. Sparse particles of grafted bone were evident in direct contact with the regenerated bone. Marrow spaces showed a normal stromal component with limited grafted particles.

Keywords: alveolar ridge augmentation, autogenous cortical bone particulate, guided bone regeneration