1. Department of Restorative Dentistry, School of Dentistry, São Paulo State University (UNESP), Araraquara, São Paulo, Brazil
2. Department of Dentistry, University Center Presidente Antonio Carlos, Barbacena, Brazil
3. Department of Dentistry, University Center Presidente Tancredo de Almeida Neves, São João del Rei, Minas Gerais, Brazil