| Affiliation: | 1. Senior staff member, Department of Orthodontics, Georg-August-University of Göttingen, Göttingen, Germany;2. Staff member, Department of Orthodontics, Georg-August-University of Göttingen, Göttingen, Germany;3. Staff member, Department. of Oral and Maxillofacial Surgery, Georg-August-University of Göttingen, Göttingen, Germany;4. Staff member, Department of Diagnostic Radiology, Georg-August-University of Göttingen, Göttingen, Germany;5. Staff member, Department of Medical Statistics, Georg-August-University of Göttingen, Göttingen, Germany;6. Senior staff member, Department of Operative Dentistry and Periodontology, Albert-Ludwigs-University of Freiburg, Freiburg, Germany;7. Head, Department of Orthodontics, Georg-August-University of Göttingen, Goettingen, Germany |
