1. Eneida Beatriz Sanfelice, DDS, MS, PhD, Department of Restorative Dentistry, School of Dentistry, Pontifical Catholic University of Rio Grande do Sul, Porto Alegre, Brazil
2. Amanda Baptista da Silva Heck, DDS, MS, Department of Restorative Dentistry, School of Dentistry, Pontifical Catholic University of Rio Grande do Sul, Porto Alegre, Brazil
3. Hélio Radke Bittencourt, MS, PhD, Department of Statistics, Polytechnic School, Pontifical Catholic University of Rio Grande do Sul, Porto Alegre, Brazil
4. João Batista Blessmann Weber, DDS, MS, PhD, Department of Restorative Dentistry, School of Dentistry, Pontifical Catholic University of Rio Grande do Sul, Porto Alegre, Brazil
5. Luiz Henrique Burnett Júnior, DDS, MS, PhD, Department of Restorative Dentistry, School of Dentistry, Pontifical Catholic University of Rio Grande do Sul, Porto Alegre, Brazil
6. *Ana Maria Spohr, DDS, MS, PhD, Department of Restorative DentistryPontifical Catholic University of Rio Grande do Sul, Porto Alegre, Brazil