1. Mônica Maria de Albuquerque Pontes, adjunct professor, School of Dentistry, Pernambuco University, Camaragibe, Brazil
2. Jéssica Marcela de Luna Gomes, postgraduate student, Aracatuba Dental School, São Paulo State University, São Paulo, Brazil
3. Cleidiel Aparecido Araujo Lemos, postgraduate student, Department of Dental Materials and Prosthodontics, University of Estadual Paulista, Araçatuba, Brazil
4. Rafaella de Souza Leão, postgraduate student, Faculty of Dentistry, University of Pernambuco, Camaragibe, Brazil
5. Sandra Lúcia Dantas de Moraes, adjunct professor, School of Dentistry, Pernambuco University, Camaragibe, Brazil
6. Belmiro Cavalcanti do Egito Vasconcelos, associate professor, School of Dentistry, Pernambuco University, Camaragibe, Brazil
7. Eduardo Piza Pellizzer, full professor, Department of Dental Materials and Prosthodontics, São Paulo State University, Araçatuba, Brazil