1. Department of Oral and Maxillofacial Surgery, Medical University of Innsbruck, Anichstraße 35, 6020 Innsbruck, Austria
2. Department of Oral and Maxillofacial Surgery, School of Medicine, Technical University of Munich, Klinikum Rechts der Isar, Ismaninger Str. 22, 81675 Munich, Germany
3. Department of Oral and Maxillofacial Surgery and Facial Plastic Surgery, University Hospital LMU Munich, Lindwurmstraße 2A, 80337 Munich, Germany
4. Department of Radiology, School of Medicine, Technical University of Munich, Klinikum Rechts der Isar, Ismaninger Str. 22, 81675 Munich, Germany