Three-dimensional Analysis of Facial Soft Tissue Changes after Mandibular Retrusion Surgery

Conclusions: The scanning method used in this study to obtain the facial scan was simple, fast, and reliable. Since the direction of the normal vectors analysed was dependent on the facial surface, change was analysed in multiple directions and represented by a coloured facial map. Despite the statistical limitations of this system, it provides the clinician with a visual and comprehensible image to represent shape changes.