1. Department of Orthodontics, University of Alfonso X El Sabio, Madrid, Spain
2. PhD Student of Faculty of Medicine, University of Salamanca, Salamanca, Spain
3. Dental Sleep Medicine Program, Catholic University of Murcia UCAM, Murcia, Spain
4. Department of Pediatric Dentistry, Faculty of Medicine, University of Salamanca, Salamanca, Spain
5. Orthodontics, Faculty of Medicine, University of Salamanca, Salamanca, Spain
6. Division of Orthodontics, School of Dentistry, Faculty of Medicine and Dentistry, University of Alberta, Alberta, Canada