1. School of Dentistry Federal University of Rio Grande do Sul (UFRGS) Porto Alegre Brazil
2. School of Server Development Federal University of Rio Grande do Sul (UFRGS) Porto Alegre Brazil
3. Multicampi School of Medical Sciences Federal University of Rio Grande do Norte (UFRN) Caico Brazil
4. School of Nursing Department of Professional Guidance University of São Paulo (USP) São Paulo Brazil
5. Department of Preventive and Social Dentistry School of Dentistry Federal University of Rio Grande do Sul (UFRGS) Porto Alegre Brazil