1. University of Brasília, Laboratory of Oral Histopathology, Department of Dentistry, Faculty of Health Sciences University of Brasília Brasília Brazil
2. University of Campinas, Department of Oral Diagnosis and Graduate Program in Oral Biology, School of Dentistry University of Campinas Piracicaba Brazil
3. Federal University of Santa Catarina, Department of Dentistry Federal University of Santa Catarina Florianópolis Brazil
4. University of Brasilia, Department of Dentistry, School of Health Sciences University of Brasilia Brasília Brazil