1. Department of Endodontics Faculty of Odontology Malmö University Malmö Sweden
2. Division of Restorative Dentistry Dublin Dental University Hospital Trinity College Dublin Dublin Ireland
3. Department of Preventive and Restorative Dentistry College of Dental Medicine University of Sharjah Sharjah UAE
4. UWA Dental School University of Western Australia Nedlands WA Australia
5. School of Dentistry The University of Alabama at Birmingham Birmingham AL USA
6. Section of Oral Radiology Department of Dentistry and Oral Health Aarhus University Aarhus Denmark
7. The Faculty of Dentistry, Oral and Craniofacial Sciences at Kings’ College London London UK
8. Department of Conservative and Preventive Dentistry University of Zürich Zürich Switzerland
9. School of Dentistry College of Biomedical and Life Sciences Cardiff University Cardiff UK