1. Department of Dentistry; School of Medicine, Inha University; Incheon Republic of Korea
2. Department of Periodontology; Research Institute for Periodontal Regeneration, College of Dentistry, Yonsei University; Seoul Republic of Korea
3. Green Ceramic Division; Korea Institute of Ceramic Engineering and Technology; Seoul Republic of Korea
4. Department of Advanced Materials Science and Engineering; Mokpo National University; Muan-gun Republic of Korea
5. Clinical Research Center; School of Medicine; Inha University; Incheon Republic of Korea