Computer-Aided Autogenous Coronoid Process Graft Combined with Median and Unilateral Sagittal Split Osteotomy for Late Reconstruction of Condylar Fracture and Occlusion after Trauma

Abstract

Purpose: This study proposes a high-precision surgical technique that combines both computer-aided design/computer-aided manufacturing (CAD/CAM) and the screw-track transfer technique for condylar and occlusal reconstruction. Materials and methods: A 43-year-old male patient with facial asymmetry, limited mouth opening, and malocclusion underwent condylar and occlusal reconstruction surgery. An autogenous cor-onoid process graft was performed by combining CAD/CAM and the screw-track transfer technique. Results: The surgical plan was transformed successfully from preoperative virtual surgical planning to actual surgery; this was confirmed by merging the postoperative computed tomography images with the preoperative three-dimensional surgical design. The patient recovered well and had better occlusion and facial symmetry, as well as an increased degree of mouth opening post-surgery. No complications were observed. Conclusions: CAD/CAM combined with the screw-track transfer technique is a precise and feasible method that can be applied to autogenous coronoid process grafts. This approach can be used to reconstruct the condylar process and achieve a good occlusal relationship.