1. Department of Prosthodontics; Bauru School of Dentistry; University of São Paulo; São Paulo Brazil
2. Department of Prosthodontics; Piracicaba Dental School; University of Campinas; Piracicaba Brazil
3. Department of Maxillofacial Surgery; Temporomandibular Disorders Clinic; University of Padova; Padova Italy
4. Temporomandibular Disorders Clinic; School of Dentistry; University of Siena; Siena Italy