1. Departament of Dental Materials, Faculty of Dentistry, University of Pernambuco, Recife 50100-130, PE, Brazil
2. Departament of Restorative Dentistry, Federal University of Paraíba, João Pessoa 58051-900, PB, Brazil
3. Department of Clinical Nursing, Federal University of Paraíba, João Pessoa 58051-900, PB, Brazil
4. Department of Restorative Dentistry, School of Dentistry, Federal University of Alagoas, Maceió 57072-900, AL, Brazil