1. Department of Health Sciences and Pediatric Dentistry, Piracicaba Dental School, Universidade de Campinas, Piracicaba, São Paulo, Brazil
2. Department of Microbiology and Molecular Biology, São Francisco University Dental School, Bragança Paulista, São Paulo, Brazil
3. Department of Morphology, Piracicaba Dental School, Universidade de Campinas, Piracicaba, São Paulo, Brazil