Clinical and Radiographic Outcomes of Composite Cortical Plate Grafting Versus the Khoury Bone Plate Technique for Advanced Alveolar Ridge Augmentation: A Retrospective Comparative Study

Vollständiger Abstract

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Objective: Reconstruction of severe vertical and horizontal alveolar ridge defects remains a clinical challenge in implant dentistry. The Khoury bone plate technique is widely used; however, graft resorption and limited graft containment may affect outcomes. This study aimed to evaluate the clinical outcomes of the Composite Cortical Plate Grafting (CCPG) technique compared with the Khoury bone plate technique. This retrospective comparative clinical study included 64 ridge augmentation procedures performed using either a CCPG technique (n=32) or the Khoury bone plate technique (n=32). The dual-layer approach involved cortical plate fixation, composite grafting with autogenous bone and xenograft, followed by an additional xenograft layer and pericardium membrane coverage. Bone gain was assessed clinically and radiographically. Graft resorption was evaluated based on radiographic observations during follow-up. Implant success was defined by clinical stability and absence of complications. The follow-up period ranged from 6 to 12 months. Results: The CCPG technique showed greater bone gain and improved graft stability compared with the Khoury technique. Lower graft resorption and higher implant placement success rates were observed in the CCPG group (93.7% versus 75%). Complication rates were lower in the CCPG group. Conclusions: The findings suggest that the CCPG technique may provide favorable outcomes in terms of bone gain and graft stability compared with the Khoury technique. This approach represents a modification of established ridge augmentation methods and may be considered in the management of complex alveolar defects.