1 Department of Orthodontics, University of Ferrara; Department of Pediatric Dentistry, University of L'Aquila; Private Practice of Orthodontics in Rome, Italy. greco.orthodontics@icloud.com.
2 Postgraduate School of Orthodontics, University of Ferrara; Private Practice of Orthodontics in Rome, Italy.
3 Private Practice of Orthodontics in Rome, Italy.