1 Department of Oral Diagnosis, Division of Oral Radiology, Piracicaba Dental School, University of Campinas (UNICAMP), Piracicaba, São Paulo, Brazil.
2 Faculdade São Leopoldo Mandic, Instituto de Pesquisas São Leopoldo Mandic, Division of Oral Radiology and Department of Stomatology, Public Health and Forensic Dentistry, School of Dentistry of Ribeirão Preto - University of São Paulo, São Paulo, Brazil.