1. Department of Morphology, Physiology and Basic Pathology, Ribeirão Preto School of Dentistry, University of São Paulo, São Paulo, Brazil
2. Department of Dentistry, Federal University of Santa Catarina, Florianopolis, Brazil
3. Department of Dentistry, University of Alberta, Edmonton, Canada
4. Department of Restorative Dentistry, Ribeirão Preto School of Dentistry, University of São Paulo, São Paulo, Brazil