1. Department of Diagnostics and Surgery, Periodontics Division, São Paulo State University (UNESP) School of Dentistry Araçatuba SP Brazil
2. Latin American Institute of Dental Research and Teaching (ILAPEO) Curitiba PR Brazil
3. Center for Dental Assistance to Persons with Disabilities (CAOE) School of Dentistry Araçatuba SP Brazil
4. Department of Biology Edge Hill University Ormskirk Lancashire UK
5. Department of Periodontics State University of Campinas Piracicaba SP Brazil
6. Department of Preventive and Restorative Dentistry, São Paulo State University (UNESP) School of Dentistry Araçatuba SP Brazil