1. Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Chulalongkorn University, Bangkok, Thailand.
2. Department of Radiology, Faculty of Dentistry, Chulalongkorn University, Bangkok, Thailand.
3. Somdech Phra Pinklao Hospital, Naval Medical Department, Royal Thai navy, Bangkok, Thailand.
4. Department of Mechanical Engineering, Faculty of Engineering, King Mongkut’s University of Technology Thonburi, Bangkok, Thailand.