1. Department of Morphology, São Paulo State University (UNESP), School of Dentistry, 14801903 Araraquara, SP, Brazil
2. Department of Oral Diagnosis and Surgery, São Paulo State University (UNESP), School of Dentistry, 14801903 Araraquara, SP, Brazil
3. Department of Microbiology, Institute of Biomedical Sciences, University of São Paulo (USP), CEP 05508-900, São Paulo, SP, Brazil