1. Research Assistant, Department of Oral and Maxillofacial Sciences, School of Dentistry, “Sapienza” University of Rome, Rome, Italy.
2. Assistant Professor, Department of Oral and Maxillofacial Sciences, School of Dentistry, “Sapienza” University of Rome, Rome, Italy.
3. Research Assistant, Department of Radiology, “Sapienza” University of Rome, Rome, Italy.
4. Professor, Department of Statistics, “Sapienza” University of Rome, Rome, Italy.
5. Professor, Department of Orthodontics, School of Dentistry, University of Catania, Catania, Italy.
6. Professor, Department of Oral and Maxillofacial Sciences, School of Dentistry, “Sapienza” University of Rome, Rome, Italy.