1. Department of Oral and Maxillofacial Pathology; Research Center for Tooth and Periodontal Regeneration (MRC); School of Dentistry; Kyung Hee University; Seoul Republic of Korea
2. Department of Prosthodontics; Dongatn Sacred Heart Hospital; Hallym University; Dongtan South Korea
3. Department of Oral Medicine; School of Dentistry; Kyung Hee University; Seoul Republic of Korea
4. Department of Maxillofacial Biomedical Engineering; School of Dentistry; Kyung Hee University; Seoul Republic of Korea