1. Department of Oral Surgery and Pathology; School of Dentistry; Universidade Federal de Minas Gerais; Belo Horizonte Brazil
2. School of Health and Biosciences; Pontifícia Universidade Católica do Paraná; Curitiba Brazil
3. Oral Pathology Laboratory; School of Dentistry; Pontifícia Universidade Católica de Minas Gerais; Belo Horizonte Brazil
4. Department of Stomatology; School of Dentistry; Universidade de São Paulo; São Paulo Brazil