1. Department of Restorative Dentistry, Piracicaba Dental School, University of Campinas, Piracicaba, Brazil
2. Department of Biomaterials and Oral Biology, School of Dentistry, University of São Paulo, São Paulo, Brazil
3. Department of Restorative Dentistry, School of Dentistry, Federal University of Minas Gerais, Belo Horizonte, Brazil