1. Department of Oral and Maxillofacial Radiology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
2. Department of Oral and Maxillofacial Radiology, Faculty of Dental Science, Kyushu University, Fukuoka, Japan
3. Department of Oral and Maxillofacial Radiology, Kyushu University Hospital, Fukuoka, Japan
4. Division of Oral Radiology, Faculty of Dentistry, Republic University, Montevideo, Uruguay
5. Department of Diagnostics and General Care, Section of Image Diagnostics, Fukuoka Dental College, Fukuoka, Japan
6. Department of Radiological Technology, Faculty of Fukuoka Medical Technology, Teikyo University, Fukuoka, Japan