1. Department of Physiological Sciences; Piracicaba Dental School - The State University of Campinas; Piracicaba Brazil
2. Department of Dentistry; The State University of Montes Claros; Montes Claros Brazil
3. Department of Exact Sciences; The State University of Montes Claros; Montes Claros Brazil
4. Center for Research; The Educative Association of Brazil; Montes Claros Brazil
5. Department of Social Odontology; Piracicaba Dental School; The State University of Campinas; Piracicaba Brazil