1. Department of Oral Diagnosis and PathologySchool of Dentistry, Federal University of Rio de Janeiro (UFRJ) Rio de Janeiro Brazil
2. Department of Oral DiagnosisPiracicaba Dental School, State University of Campinas (FOP‐UNICAMP) Piracicaba Brazil
3. Department of Dental ClinicsSchool of Dentistry, Federal University of Rio de Janeiro Rio de Janeiro Brazil
4. Oral MedicineSchool of Dentistry, Rio de Janeiro State University Rio de Janeiro Brazil
5. Department of Pathology, Clementino Fraga Filho University HospitalFederal University of Rio de Janeiro School of Medicine Rio de Janeiro Brazil