1. Department of Restorative Dentistry School of Dentistry of Araraquara, São Paulo State University Araraquara SP Brazil
2. Researcher, School of Dentistry Universidad Católica de Santa María‐UCSM Arequipa Peru
3. Department of Operative Dentistry, College of Dentistry University of Iowa Iowa IA USA
4. Department of Restorative Dentistry, Faculty of Dentistry University of Chile Santiago Chile
5. Instituto de Ciencias Biomédicas Universidad Autónoma de Chile Providencia Chile