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