1. Department of Biosciences, Piracicaba Dental School University of Campinas Piracicaba Brazil
2. Faculty of Pharmaceutical Sciences University of Campinas Campinas Brazil
3. Dental Research Division University of Guarulhos (UNG) Guarulhos Brazil
4. Research department Universidad Franz Tamayo Cochabamba Bolivia
5. Department of Oral Diagnosis, Piracicaba Dental School University of Campinas Piracicaba Brazil