1. Department of Oral Pathology, Faculdade de Odontologia Federal University of Rio Grande do Sul (UFRGS) Porto Alegre Brazil
2. Oral Medicine, Otorhinolaryngology Service Hospital de Clínicas de Porto Alegre (HCPA) Porto Alegre Rio Grande do Sul Brazil
3. Department of Social Medicine UFRGS Porto Alegre Brazil
4. TelessaudeRS, UFRGS Porto Alegre Rio Grande do Sul Brazil
5. Oral Diagnosis Department Piracicaba Dental School (FOP‐UNICAMP) Piracicaba Brazil