The Use of Composite Xenograft and Allograft in Post-Explantation Ridge Defect Augmentation: A Case Report

This case report highlights the successful management of ridge defects resulting from early implant failures through ridge defect augmentation using a composite allograft/xenograft bone substitute following explantation. Subsequent implant placements achieved primary stability within 4 months post-augmentation, enabling the delivery of a prosthesis with a fixed partial denture by 5 months post-implant placement. The unique combination of the demineralized allograft fiber-form and xenograft leveraged the materials' distinct osteoinductive and osteoconductive attributes to facilitate a positive outcome in the ridge defect augmentation. As demonstrated in this case presentation, this composite graft provides both volume stability and structural support for implant-supported prostheses.