1. Graduate Program, School of Dentistry Universidade Federal de Minas Gerais, Avenida Antonio Carlos Belo Horizonte Brazil
2. Department of Pharmaceutical Products Universidade Federal de Minas Gerais, Avenida Antonio Carlos Belo Horizonte Brazil
3. Department of Population Oral Health, School of Medicine The University of Sydney Sydney New South Wales Australia
4. Department of Operative Dentistry Universidade Federal de Minas Gerais, Avenida Antonio Carlos Belo Horizonte Brazil
5. Department of Community and Preventive Dentistry Universidade Federal de Minas Gerais, Avenida Antonio Carlos Belo Horizonte Brazil