1. Graduate Program in Dentistry Federal University of Maranhão São Luís Maranhão Brazil
2. Section for Periodontology, Department of Dentistry and Oral Health Aarhus University Aarhus Denmark
3. Department of Public Health Federal University of Maranhão São Luís Maranhão Brazil
4. National Dental Research Institute Singapore National Dental Centre Singapore Singapore Singapore
5. Oral Health ACP Duke‐NUS Medical School Singapore Singapore