1. Department of Radiological Technology, Graduate School of Health Sciences, Okayama University, Okayama 700‑8558, Japan
2. Division of Clinical Radiology Service, Okayama Central Hospital, Okayama 700‑0017, Japan
3. Department of Oral and Maxillofacial Radiology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama 700‑0017, Japan
4. Graduate School of Interdisciplinary Sciences and Engineering in Health Systems, Okayama University, Okayama, 770‑8558, Japan
5. Department of Oral Radiology, Faculty of Dentistry, Hasanuddin University, Makassar, Sulawesi 90245, Indonesia
6. Department of Oral Diagnostic Sciences, Faculty of Dentistry, Bayero University, Kano 00234, Nigeria