1. Department of Translational Research, Tsurumi University School of Dental Medicine, 2-1-3 Tsurumi, Tsurumi-ku, Yokohama 230-8501, Japan
2. Oral Health Division, Department of Medical Services, Ministry of Health and Sports, Myanmar
3. Department of Operative Dentistry, Tsurumi University School of Dental Medicine, 2-1-3 Tsurumi, Tsurumi-ku, Yokohama 230-8501, Japan
4. Department of Oral Bacteriology, Tsurumi University School of Dental Medicine, 2-1-3 Tsurumi, Tsurumi-ku, Yokohama 230-8501, Japan
5. Department of Pediatric Dentistry, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo 113-8510, Japan
6. INGO Association of Dental Volunteers of Japan, 1-2693 Nishiminatomachi-dori, Cyuou-ku, Niigata 951-8026, Japan