1. Post-Graduate Program in Dentistry; Federal University Rio Grande do Sul, Porto Alegre; Rio Grande do Sul Brazil
2. Student Fellow, School of Pharmacy; Dentistry and Nursing, Federal University of Ceará; Fortaleza, Ceará Brazil
3. Professor of Periodontology, School of Pharmacy, Dentistry and Nursing; Federal University of Ceará; Fortaleza, Ceará Brazil
4. Professor of Operative Dentistry, School of Pharmacy, Dentistry and Nursing; Federal University of Ceará; Fortaleza, Ceará Brazil
5. Professor of the Post-Graduate program in Nursing, Nutrition and Health; State University of Ceará; Fortaleza, Ceará Brazil