1. Department of Specific Formation; Nova Friburgo Dental School; Fluminense Federal University; Rio de Janeiro Brazil
2. Department of Community Dentistry; Piracicaba Dental School; São Paulo Brazil
3. Professor, Department of Specific Formation; University of Campinas (FOP-UNICAMP); São Paulo Brazil
4. Professor, Department of Specific Formation; Nova Friburgo Dental School; Fluminense Federal University; Rio de Janeiro Brazil