Three-dimensional surgical simulation for facial asymmetry: soft tissue-, skeleton-, and occlusion-based planning

Using three-dimensional (3D) computerized simulation systems has enabled us to determine the anticipated position of the maxilla and mandibular proximal and distal segments. The bony segments need to be mobilized according to the planned final position. The concept of 3D surgical planning in orthognathic surgery has evolved continuously. While using 3D simulation for planning the correction of facial asymmetry, surgeons must consider how and where the bony segments can be positioned in 3D virtual space. The three different components of 3D surgical simulation for planning of dentofacial asymmetry correction are (1) soft tissue-, (2) skeleton-, and (3) occlusion-based segment mobilization.