1 Department of Orthodontics and Pediatric Dentistry, University of Maryland, School of Dentistry, Baltimore, Maryland, USA.
2 School of Medicine Dentistry and Biomedical Sciences, Queen's University Belfast, Belfast, UK.
3 The Department of Endodontics, School of Dentistry at University of Alabama at Birmingham, Birmingham, Alabama, USA.
4 Division of Public and Child Dental Health, Dublin Dental University Hospital, Trinity College, Dublin, Ireland.
5 Iranian Center for Endodontic Research, Research Institute of Dental Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
6 Cariology and Endodontics, Section of Clinical Oral Microbiology, Department of Odontology, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark.
7 Department of Pediatric Dentistry, Faculty of Dentistry, Hacettepe University, Ankara, Turkey.
8 Department of Pediatric Dentistry, New York University. NY, New York City, New York, USA.
9 Paediatric Dentistry Discipline, Department of Oral Sciences, Faculty of Dentistry, University of Otago, Dunedin, New Zealand.
10 Marquette University School of Dentistry, Milwaukee, Wisconsin, USA.
11 School of Dentistry, College of Biomedical and Life Sciences, Cardiff University, Cardiff, UK.
12 Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, Brazil.
13 Department of Conservative Dentistry, Faculty of Dentistry, Jordan University of Science and Technology, Irbid, Jordan.
14 Pediatric and Preventive Dentistry, Centre for Dental Education and Research, All India Institute of Medical Sciences, New Delhi, India.
15 Ege University, School of Dentistry, Department of Endodontics, Izmir, Turkey.