1. Postgraduate Studies Program in DentistryFederal University of Rio Grande do Sul Porto Alegre Rio Grande do Sul Brazil
2. Gravataí City Hall Gravataí Rio Grande do Sul Brazil
3. Department of Preventive and Social Dentistry – School of DentistryFederal University of Rio Grande do Sul Porto Alegre Rio Grande do Sul Brazil
4. Grupo Hospitalar Conceição – Community Health Service and Graduate Program Professional Masters Modality Assessment and Production of Technologies for the SUS Porto Alegre Rio Grande do Sul Brazil