1. Soram Oh, DDS, MSD, PhD, Department of Conservative Dentistry, Kyung Hee University Dental Hospital, Seoul, Republic of Korea
2. Ji-Hyun Jang, DDS, MSD, PhD, Department of Conservative Dentistry, School of Dentistry, Kyung Hee University, Seoul, Republic of Korea
3. Hyun-Jung Kim, DDS, MSD, Department of Conservative Dentistry, Kyung Hee University Dental Hospital, Seoul, Republic of Korea
4. Nam-Sik Seo, DDS, MSD, Department of Conservative Dentistry, Graduate School, Kyung Hee University, Seoul, Republic of Korea
5. Suk-Ho Byun, DDS, MSD, Department of Conservative Dentistry, Graduate School, Kyung Hee University, Seoul, Republic of Korea