1. Department of Biomedical and Dental Sciences and Morphofunctional Imaging—Section of Orthodontics, School of Dentistry, University of Messina, Italy
2. Department of Medical-Surgical Specialties—Section of Orthodontics, School of Dentistry, University of Catania, Italy
3. Department of Oral and Maxillofacial Sciences, School of Dentistry, “Sapienza” University of Rome, Italy