1 Department of Orthodontics, University of Ferrara, Ferrara, Italy; Private Practice of Orthodontics in Bolzano, Italy. info@perfect-smile.it.
2 Department of Orthodontics, University of Ferrara, Ferrara, Italy; Private Practice of Orthodontics in Bolzano, Italy.
3 Department of Oral and Maxillofacial Surgery, University of Modena and Reggio Emilia, Italy; Private Practice of Periodontology, Implantology, and Prosthodontics in Bolzano, Italy.
4 Department of Orthodontics, University of Ferrara.