1. Section of Preventive and Public Health Dentistry; Division of Oral Health; Growth and Development; Kyushu University Faculty of Dental Science; Fukuoka Japan
2. Department of Operative Dentistry and Endodontology; Study Program of Dentistry; Faculty of Medicine; Jenderal Achmad Yani University; Jawa Barat Indonesia
3. OBT Research Center; Kyushu University Faculty of Dental Science; Fukuoka Japan
4. Center for Educational Outreach and Admissions; Kyoto University; Kyoto Japan
5. Department of Epidemiology and Public Health; Graduate School of Medical Sciences; Kyushu University; Fukuoka Japan