1. Department of Child Dental Health, Obafemi Awolowo University, Ile-Ife 220282, Nigeria
2. Population Studies, Nigerian Institute of Medical Research, Lagos 101212, Nigeria
3. Early Childhood Caries Advocacy Group, University of Manitoba, Winnipeg, MB R3T 2N2, Canada
4. Africa Oral Health Network, Alexandria University, Alexandria 21527, Egypt
5. Department of Pediatric Dentistry and Dental Public Health, Faculty of Dentistry, Alexandria University, Alexandria 21527, Egypt