1 Department of Oral Surgery, Pathology and Clinical Dentistry, School of Dentistry, 28114Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil.
2 Department of Oral Diagnosis and Pathology, School of Dentistry, 28125Universidade Federal do Rio de Janeiro, Rio de Janeiro, Rio de Janeiro, Brazil.
3 Department of Child's and Adolescent's Oral Health, School of Dentistry, 28114Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil.