1. Department of Dental Materials and Prosthodontics; Aracatuba Dental School; UNESP - Univ Estadual Paulista; São Paulo Brazil
2. Department of Health Sciences; Pró-Reitoria de Pesquisa e Pós-graduação (PRPPG); Universidade do Sagrado Coração; São Paulo Brazil
3. Department of Prosthodontics; Dentistry School of University of Pernambuco; Recife Pernambuco Brazil