Mandibular deviation (MD) is a common reconstruction sequela after segmental

mandibulectomy. Although proper postoperative rehabilitation is critical for MD management

and minimization, the information available is limited. This report describes postoperative

rehabilitation with an occlusal splint fabricated using computer-aided design (CAD) and

computer-aided manufacturing (CAM) (CAD/CAM-OS) and the results of a threedimensional

occlusal analysis using an intraoral scanner after hemimandibulectomy and plate

reconstruction. Despite the short follow-up, adherence to postoperative rehabilitation with

CAD/CAM-OS for MD correction, even during radiotherapy, was demonstrated by the digital

workflow and analysis results.