1. Department of Operative Dentistry and Endodontics, Faculty of Dentistry, Mahidol University
2. Faculty of Dentistry, Mahidol University
3. Division of Radiation Oncology, Department of Radiology, Faculty of Medicine, Chulalongkorn University, King Chulalongkorn Memorial Hospital
4. Department of Advanced General Dentistry, Faculty of Dentistry, Mahidol University