Émilie Garreau1, Thomas Wojcik2, Hervey Rakotomalala3, Gwenaël Raoul4, Joël Ferri4. 1. Département Universitaire de Chirurgie Maxillofaciale et Stomatologie, Hôpital Roger-Salengro, CHU de Lille, rue Émile-Laine, 59037 Lille, France; Association Internationale de Médecine Orale et Maxillofaciale, 7bis, rue de la Créativité, 59650 Villeneuve-d'Ascq, France. Electronic address: emilie.garreau@gmail.com. 2. Département Universitaire de Chirurgie Maxillofaciale et Stomatologie, Hôpital Roger-Salengro, CHU de Lille, rue Émile-Laine, 59037 Lille, France; Unité INSERM U1008, Médicaments et Biomatériaux à Libération Contrôlée, Faculté des Sciences pharmaceutiques et Biologiques, 3, rue du Professeur-Laguesse, 59000 Lille, France; Association Internationale de Médecine Orale et Maxillofaciale, 7bis, rue de la Créativité, 59650 Villeneuve-d'Ascq, France. 3. Département Universitaire de Chirurgie Maxillofaciale et Stomatologie, Hôpital Roger-Salengro, CHU de Lille, rue Émile-Laine, 59037 Lille, France. 4. Département Universitaire de Chirurgie Maxillofaciale et Stomatologie, Hôpital Roger-Salengro, CHU de Lille, rue Émile-Laine, 59037 Lille, France; Unité INSERM U1008, Médicaments et Biomatériaux à Libération Contrôlée, Faculté des Sciences pharmaceutiques et Biologiques, 3, rue du Professeur-Laguesse, 59000 Lille, France; Association Internationale de Médecine Orale et Maxillofaciale, 7bis, rue de la Créativité, 59650 Villeneuve-d'Ascq, France; Université Lille Nord de France, UDSL, 1, rue Lefèvre, 59000 Lille, France.
Abstract
INTRODUCTION: Use of symphyseal distraction osteogenesis to treat a mandibular bone deficit with tooth-jaw discrepancy due to lack of space makes it possible to avoid the risks associated with the techniques usually envisaged (stripping, labioversion of incisors, extractions). PATIENTS AND METHOD: This retrospective study presents the symphyseal distraction technique used in the maxillofacial surgery department of Lille University Hospital between January 1998 and March 2013. Treatment efficacy, complications and the stability of results were all evaluated. RESULTS: Thirty-five patients were included in the study. The gain of inter-mental-foramen space was on average 7 mm (3-12, standard deviation 1.8 mm). A good occlusal result with dental Class I and no labioversion of the lower incisors was obtained in 27 of the 35 patients (77%). CONCLUSION: Mandibular distraction by symphyseal osteotomy seems to be a quick, safe treatment for an anterior transversal mandibular deficit giving results that are stable over time. Its success depends on good collaboration between the orthodontist and the surgeon, and on strict patient selection.
INTRODUCTION: Use of symphyseal distraction osteogenesis to treat a mandibular bone deficit with tooth-jaw discrepancy due to lack of space makes it possible to avoid the risks associated with the techniques usually envisaged (stripping, labioversion of incisors, extractions). PATIENTS AND METHOD: This retrospective study presents the symphyseal distraction technique used in the maxillofacial surgery department of Lille University Hospital between January 1998 and March 2013. Treatment efficacy, complications and the stability of results were all evaluated. RESULTS: Thirty-five patients were included in the study. The gain of inter-mental-foramen space was on average 7 mm (3-12, standard deviation 1.8 mm). A good occlusal result with dental Class I and no labioversion of the lower incisors was obtained in 27 of the 35 patients (77%). CONCLUSION: Mandibular distraction by symphyseal osteotomy seems to be a quick, safe treatment for an anterior transversal mandibular deficit giving results that are stable over time. Its success depends on good collaboration between the orthodontist and the surgeon, and on strict patient selection.