Fig. 7

Different setup occlusion can result in different sites of interference or gap. The severity or location of interosseous interference is determined by the transverse or rotational movement of the mandibular distal segment according to the planned occlusion and skeletal position. A Preoperative occlusion and skeletal position in a patient with mandibular deviation to the right side. B Simulation #1, 3D simulation based on a planned occlusion resulted in interosseous interference on the right side and a gap on the left side. C Simulation #2, another set-up occlusion shows interosseous interference on the left side and a gap on the right side