1. Department of Surgical Sciences; Specialization School of Orthodontics; Dental School; University of Torino; Torino Italy
2. Gnathology Unit; Department of Surgical Sciences; Dental School; University of Torino; Torino Italy
3. Unit of Medical and Genomic Statistics; Department of Brain and Behavioural Sciences; University of Pavia; Pavia Italy
4. Department of Maxillofacial Surgery; TMD Clinic; University of Padova; Padova Italy