Yamaguchi Y, et al. - During this research, a comparative scrutiny was conducted of the findings of CT in the supine position vs three-dimensional optical scanning in the sitting position in patients with skeletal class III jaw deformities. While changing patients' posture from a sitting to a supine position, maxillofacial soft tissue migrated from the cheeks to the subauricular regions. It was deduced that simulations for surgery based on supine CT alone did not accurately model the cheeks and subauricular areas.