1. Department of Restorative Dentistry, School of Dentistry, Federal University of Minas Gerais, Avenida Antônio Carlos 6627, Pampulha, 31270-901 Belo Horizonte, MG, Brazil
2. Department of Social and Preventive Dentistry, School of Dentistry, Federal University of Minas Gerais, Avenida Antônio Carlos 6627, Pampulha, 31270-901 Belo Horizonte, MG, Brazil