1. Ph.D., Department of Periodontology, School of Dentistry, Chonnam National University, Gwangju, Republic of Korea
2. Postgraduate Student, Department of Dental Science Graduate School, School of Dentistry, Chonnam National University, Gwangju, Republic of Korea
3. Professor, Department of Periodontology, School of Dentistry, Chonnam National University, Gwangju, Republic of Korea
4. Postgraduate Student, Department of Periodontology, School of Dentistry, Chonnam National University, Gwangju, Republic of Korea