1. School of Dentistry University of Padova Padova Italy
2. Department of Orofacial Pain and Dysfunction Academic Centre for Dentistry Amsterdam (ACTA University of Amsterdam and Vrije Universiteit Amsterdam Amsterdam The Netherlands
3. Department of Management and Engineering University of Padova Padova Italy
4. Department of Dentistry and Maxillo‐facial surgery Hospital of Treviso Treviso Italy
5. School of Dentistry University of Siena Siena Italy