“…Three-dimensional facial analysis represents an important field of research of human anatomy, with application in several surgical and diagnostic branches of medicine, from dentistry to maxillofacial surgery (Farkas and Deutsch, 1996). The introduction of modern three-dimensional (3D) image acquisition systems, such as stereophotogrammetry and laser scanning, has represented a crucial improvement, widening the type of measurements to areas, volumes and 3D-3D surface distances, and increasing the reliability of metrical assessment (Winberg et al, 2006;Sawyer et al, 2009;Codari et al, 2015;Gibelli et al, 2015;Hong et al, 2017). In fact, both stereophotogrammetry and laser scanners have proved to be highly reliable (de Menezes et al, 2010;Joe et al, 2012), and have been applied to many research fields of facial anatomy relating to surgery, anthropology and genetics (Schwenzer-Zimmerer et al, 2008;Kau et al, 2010;Tartaglia et al, 2012;Sforza et al, 2013;Othman et al, 2014;Rosati et al, 2014;Koudelovà et al, 2015;Pucciarelli et al, 2017aPucciarelli et al, , 2017b.…”