1 Department of Child Dental Health, Obafemi Awolowo University, Ile-Ife, Nigeria. toyinukpong@yahoo.co.uk.
2 Alexandria University, Alexandria, Egypt.
3 Department of Clinical Dentistry, University of Bergen, Bergen, Norway.
4 Department of Pediatric Dentistry, Univesidade Luterana do Brasil, Canoas, Brazil.
5 Centre for Oral Bioengineering, Barts and the London, School of Medicine and Dentistry, Queen Mary University of London, Mile End Road, London, E1 4NS, UK.
6 Department of Conservative Dentistry, Faculty of Dentistry, Alexandria University, Alexandria, Egypt.
7 Department of Paediatric Dentistry and Orthodontics, University of Nairobi, Nairobi, Kenya.
8 Department of Pediatric Dentistry, San Martin de Porres University, Lima, Peru.
9 Department of Preventive Dentistry, Faculty of Dentistry, Jordan University of Science and Technology, Irbid, Jordan.
10 Preventive and Community Dentistry Department, Faculty of Dentistry, Universitas Gadjah Mada Yogyakarta, Yogyakarta, Indonesia.
11 Preventive Dental Sciences Department, College of Dentistry, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia.
12 Department of Community Oral Health, School of Dentistry, Tehran University of Medical Sciences, Tehran, Iran.
13 Department of Community and Preventive Dentistry, University of Benghazi, Benghazi, Libya.
14 Dubai Health Authority, Dubai, United Arab Emirates.
15 Department of Pediatric and Preventive Dentistry, School of Dental Medicine, University of Belgrade, Belgrade, Serbia.
16 Department of Preventive Dental Science, Dr. Gerald Niznick College of Dentistry, and Departments of Pediatrics and Child Health and Community Health Sciences, Max Rady College of Medicine, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Canada.