1. Department of Restorative Dentistry, School of Dentistry Universidade Federal de Minas Gerais (UFMG) Belo Horizonte Brazil
2. Department of Restorative Dentistry, School of Dentistry São Paulo State University (Unesp) Araçatuba Brazil
3. Department of Restorative Dentistry, School of Dentistry Federal University of Alagoas (UFAL) Maceió Brazil