1. Postgraduate Program in Dentistry, Federal University of Ceará, Fortaleza, Brazil
2. Paulo Picanço School of Dentistry, Fortaleza, Brazil
3. Department of Periodontology, University of Bern, Bern, Switzerland
4. Wuhan University, Wuhan, China
5. Department of Organic and Inorganic Chemistry, Federal University of Ceará, Fortaleza, Brazil
6. Division of Oral Pathology, School of Dentistry, University Center Unichristus, Fortaleza, Brazil