1. Department of Oral Radiology, School of Dentistry, University of São Paulo, São Paulo, SP, Brazil.
2. Department of Radiology, Martinos Center of Biomedical Imaging, Massachusetts General Hospital, Charlestown, MA, USA.
3. Department of Dental Surgery, Faculty of Dental Surgery, University of Malta, Msida, Malta.
4. Department of Oral and Maxillofacial Radiology, School of Dentistry, Seoul National University, Seoul, Korea.