Corresponding Author

Division of Dentistry, Department of Periodontology, College of Medicine, Hanyang University, Seoul, South Korea

Correspondence

Ji-Young Han, Division of Dentistry, Department of Periodontology, College of Medicine, Hanyang University, 222-1 Wangsimni-ro, Seongdong-gu, Seoul 04763, South Korea.

Email: hjyperio@hanyang.ac.kr

Hyun-Chang Lim, Department of Periodontology, Periodontal-Implant Clinical Research Institute, School of Dentistry, Kyungheedaero 23, Dongdaemoon-gu, Seoul 02447, South Korea.

Email: hyun-chang.lim@khu.ac.kr