1. Chiang Mai University,Faculty of Engineering,Department of Computer Engineering,Chiang Mai,Thailand,50200
2. Intercountry Centre for Oral Health, Ministry of Public Health,Department of Health,Chiang Mai,Thailand,50000
3. Chiang Mai University,Faculty of Dentistry,Department of Oral Biology and Diagnostic Sciences,Chiang Mai,Thailand,50200
4. Thammasat University,Division of Oral and Maxillofacial Surgery, Faculty of Dentistry,Pathum Thani,Thailand,12121
5. Thammasat University,Faculty of Dentistry,Pathum Thani,Thailand,12121