1. Aleska D Vanderlei, PhD student, São José dos Campos Dental School, São Paulo State University (UNESP), Brazil
2. Marco Antonio Bottino, DDS, PhD, professor, Department of Dental Materials and Prosthodontics, São Paulo State University São José dos Campos, São Paulo, Brazil
3. Luiz Felipe Valandro, DDS, MSciD, PhD, associate professor, Head of MsciD/PhD Graduate Programs in Oral Science, Prosthodontic Unit, Faculty of Odontology, Federal University of Santa Maria, Santa Maria, Brazil