1. Department of Oral Surgery and Pathology; School of Dentistry; Universidade Federal de Minas Gerais-UFMG; Belo Horizonte Brazil
2. School of Dentistry; Universidade Federal do Ceará-UFC; Ceará Brazil
3. Department of Pathology; Biological Sciences Institute; Universidade Federal de Minas Gerais-UFMG; Belo Horizonte Brazil