1. Alejandro Cárdenas Ramos, MSc, PhD student, São Paulo State University (UNESP), School of Dentistry, Araraquara, São Paulo, Brazil
2. Ranulfo Castillo Peña, MSc, PhD student, São Paulo State University (UNESP), School of Dentistry, Araraquara, São Paulo, Brazil
3. Lívia Nordi Dovigo, PhD, assistant professor, Department of Social Dentistry, São Paulo State University (UNESP), School of Dentistry, Araraquara, São Paulo, Brazil
4. María del Mar Pérez, PhD, professor, Department of Optics, School of Science, University of Granada, IBS Campus Fuente Nueva, Granada, Spain
5. *Renata Garcia Fonseca, PhD, associate professor, Department of Dental Materials and Prosthodontics, São Paulo State University (UNESP), School of Dentistry, Araraquara, São Paulo, Brazil