1. Department of Restorative Dentistry, Faculty Estacio de Sá, Faculty of Dentistry, Federal University of Juiz de Fora, Juiz de Fora, Brazil;
2. Faculty of Dentistry, Department of Restorative Dentistry, Federal University of Juiz de Fora, Juiz de Fora, Brazi;
3. Dental Materials Unit, Center for Dental and Oral Medicine, Clinic for Fixed and Removable Prosthodontics and Dental Materials Science, University of Zurich, Zurich, Switzerland;
4. Faculty of Dentistry, Department of Dentistry, Braz Cubas University, Mogi das Cruzes, Brazil;
5. Faculty of Dentistry, Department of Dentistry, Federal University of Juiz de Fora, Governador Valadares, Brazil;
6. Department of Reconstructive Dentistry and Gerodontology, School of Dental Medicine, University of Bern, Bern, Switzerland;
7. Faculty of Dentistry, Department of Restorative Dentistry, Federal University of Juiz de Fora, Juiz de Fora, Brazil