1. School of Dentistry, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
2. School of Dentistry of Piracicaba, Universidade Estadual de Campinas, Piracicaba, São Paulo, Brazil
3. State University of Montes Claros (Unimontes), Montes Claros, MG 39401-089, Brazil