SOFT TISSUE BASED REVERSE ENGINEERING PLAN FOR ORTHOGNATHIC SURGERY

The predictability of soft tissue response and symmetry changes following orthognathic surgery is limited, particularly in the maxillary and midfacial areas due to weak correlations between changes in hard and soft tissues in these regions. In recent decades, the proliferation of three dimensional technologies has been extraordinary, significantly impacting various areas of application. Addressing dentofacial deformities typically requires a blend of orthodontic and surgical strategies. Procedures like Le Fort I osteotomy (LFI), bilateral sagittal split osteotomy (BSSO), intraoral branch vertical osteotomy (IVRO), sagittal split branch osteotomy (SSRO), bimaxillary surgery, and genioplasty are frequently used to address the specific needs of patients presenting with such conditions. The planning of these interventions have frequently relied on two-dimensional methods. Advances in 3D graphics and imaging tools now enable exploration of surgical planning and anticipation of the consequences of various clinical strategies. Moreover, surgeons can employ a 3D laser technology for scanning and face surface mapping, a vital tool in emphasizing the effects of alterations in facial skin.