3 Dimensional Computer Simulated Cutting Guide for the Mandibuloplasty : A Preliminary Case Report

Recently facial aesthetic surgery has been popularized in many East Asian countries such as blepharoplasty, rhinoplasty and aesthetic facial bone surgery. Among the aesthetic facial bone surgeries, the mandibuloplasty for the facial aesthetic reason has been the one of the most popular procedures (1).Most East Asian women prefer smaller-looking and smooth-shaped facial contour. Prominent mandible angle which are common in Asia would be the main problem for smooth facial contour. In the past, the prominent mandible angle ostectomy was the standard for getting ideal smooth facial shape. Recent-ly, the mandibular body and broad chin shape also are known to be remodeled in order to get the ideal smooth facial shape. Therefore, many surgeons need to correct the whole mandible at one time. However, mandibuloplasty is not that easy to cut ideally because many patients has inward mandibular angle and the visual field in operation is limited (2).Several complications can occur during the mandibuloplasty including the over-resection, under-resection, asymmetric con-touring, condyle fracture, facial nerve damage, mental nerve pa-resis and severe bleeding owing to the damage of the retroman -dibular vein and facial vessels (3).The aim of this trial is to try to provide the prefabricated cut-ting guide for the symmetric and appropriate mandibuloplasty with the surgeons. Preoperative computed tomography (CT) data were processed for the patient and computer simulation model was produced. Then, mandibuloplasty was done on the computer simulation screen. Based on this data, customized cutting guide was made. This prefabricated cutting guide was used in real mandibuloplasty bilaterally.