1. Oral and Maxillofacial Surgeon, Virgen Macarena University Hospital, 41009 Seville, Spain
2. Private Practice Clínica del Canto, 28290 Madrid, Spain
3. Oral and Maxillofacial Surgeon, Puerta del Mar University Hospital, 11009 Cádiz, Spain
4. Oral and Maxillofacial Surgeon, San Francisco de Asís University Hospital, 28002 Madrid, Spain
5. Oral and Maxillofacial Surgeon, Bellvitge University Hospital, 08907 Barcelona, Spain
6. Oral and Maxillofacial Consultant, Hospital Clínic, Universitat de Barcelona, 08036 Barcelona, Spain
7. Oral and Maxillofacial Surgeon, Private Practice Cimax, 17002 Girona, Spain
8. Professors of Oral Surgery, Faculty of Medicine and Health Sciences, Researchers at the IDIBELL Institute, University of Barcelona (Spain), 08907 Barcelona, Spain