[1] Obafemi Awolowo University,Department of Child Dental Health
[2] Alexandria University,Department of Pediatric Dentistry and Dental Public Health, Faculty of Dentistry
[3] Imam Abdulrahman Bin Faisal University,Department of Preventive Dental Sciences, College of Dentistry
[4] University of Manitoba,Department of Preventive Dental Science, Dr. Gerald Niznick College of Dentistry, Rady Faculty of Health Sciences
[5] Universidad Peruana Cayetano Heredia,Department of Dentistry for Children and Adolescents
[6] Jordan University of Science and Technology,Preventive Dentistry Department
[7] University of Nairobi,Department of Paediatric Dentistry and Orthodontics
[8] Universidad Central de Venezuela,Pediatric Dentistry and Orthodontics Department
[9] University of Banja Luka,Department of Periodontology and Oral Medicine, Medical Faculty
[10] Queen Mary University of London,Centre for Oral Bioengineering, Barts and the London, School of Medicine and Dentistry
[11] Alexandria University,Department of Conservative Dentistry, Faculty of Dentistry