Three-dimensional assessment of facial swelling
swelling
To assess the facial swelling, patients performed a 3D face scan 3 times for each M3M surgery: immediately before the intervention (T0), 2 (T1) and 7 (T2) days after surgery (Figs. Assessment of facial swelling using a 3D face scan 3 times for M3M (3.8): immediately before the intervention (T0), 2 days (T1) and 7 days after surgery (T2)Assessment of facial swelling using a 3D face scan 3 times for M3M (4.8): immediately before the intervention (T0), 2 days (T1) and 7 days after surgery (T2)The STL files were imported into the software 3D Slicer (3D Slicer, version 4.11.20210226, Brigham and Women's Hospital, Harvard University, NIH) and a superimposition of the pair of scans was performed (T0-T1 and T1-T2 and T0-T2) using “Model to Model Distance” specific tool. The “Shape Population Viewer” plug-in allowed to achieve a colormap for the qualitative evaluation. Using the “Pick'n Paint” plug-in, the Region of Interest (ROI) was selected in each facial scan, considering the tragus of the ear as the upper limit, soft tissue gonion as the lower, cheilion and parasymphyseal region as the medial limit, in accordance with Lau et al. [