1. Graduate Program in Dentistry, Federal University of Ceará, Fortaleza, Brazil.
2. Department of Clinical Dentistry, College of Dentistry, Federal University of Ceará, Fortaleza, Brazil.
3. College of Dentistry, Christus University, Fortaleza, Brazil.
4. Department of Restorative Dentistry, Federal University of Ceará, Fortaleza, Brazil.