1 Department of Orthodontics, University of Ferrara, Ferrara, Italy, and Department of Medical, Surgical and Health Sciences, University of Trieste, Trieste, Italy. Private practice of orthodontics, Frattamaggiore, Italy.
2 Orthodontics Department, Dental School, Genova University, Largo Rosanna Benzi 10, Genova, Italy. Dr. Posadino at marco.posadino@gmail.com.
3 Private practice of Orthodontics, Frattamaggiore, Italy.