1. Operative Dentistry Division, Department of Restorative Dentistry, Piracicaba Dental School, University of Campinas, Piracicaba, Brazil
2. Dental Materials Division, Department of Restorative Dentistry, Piracicaba Dental School, University of Campinas, Piracicaba, Brazil
3. Operative Dentistry Division, Department of Restorative Dentistry, School of Dentistry, Federal University of Minas Gerais, Belo Horizonte, Brazil