1. Department of Oral Radiology Faculty of Dentistry Hasanuddin University, Makassar, Sulawesi 90245, Indonesia
2. Department of Dental Informatics, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Science, Okayama 700‑8558, Japan
3. Department of Oral Diagnosis and Dentomaxillofacial Radiology, Okayama University Hospital, Okayama 700‑8558, Japan
4. Department of Oral and Maxillofacial Radiology Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Science, Okayama 700‑8558, Japan