1 Department of Oral and Maxillofacial Surgery, Rouen Universitary Hospital, 1 rue de Germont, F-76031 Rouen, France.
2 Laboratory of Anatomy, Rouen Faculty of Medicine, Rouen-Normandy University, 22 boulevard Léon-Gambetta, F-76183-1 Rouen, France.
3 Department of Oral and Maxillofacial Surgery, Rouen Universitary Hospital, 1 rue de Germont, F-76031 Rouen, France; Laboratory of Anatomy, Rouen Faculty of Medicine, Rouen-Normandy University, 22 boulevard Léon-Gambetta, F-76183-1 Rouen, France. Electronic address: Olivier.Trost@chu-rouen.fr.