The CBCT scan of the patients - in the form of DICOM files - will be imported into surgical planning software (Mimics 19, Materialise, Leuven, Belgium). A segmentation process will be accomplished by using the two dimensional CT cuts to define the image thresholds based on Hounsfield's units, excluding soft tissue and only highlighting hard tissue (bone). The maxilla/mandible region will be further isolated by cropping and/or region-growing functions to remove artifacts and select only the area of interest, followed by the 3D calculation of the selected regions. The 3D models will be exported in standard triangulation language (STL) format.