1. Department of Oral and Maxillofacial Surgery Dentistry Sacred Heart Hospital, Hallym University Medical Center Kyonggi‐do Korea
2. Research Society of Gangnam Oral and Maxillofacial Surgeons Seoul Korea
3. Department of Oral and Maxillofacial Surgery Ewha Womans University Medical Center Seoul Korea
4. Department of Oral and Maxillofacial Surgery Section of Dentistry Seoul Metropolitan Government–Seoul National University Boramae Medical Center Seoul Korea
5. Department of Oral and Maxillofacial Surgery Korea University Medical Center Guro Hospital Seoul Korea
6. Department of Oral and Maxillofacial Surgery Chung‐Ang University Hospital Seoul Korea
7. Department of Periodontoloy Ewha Womans University Medical Center Seoul Korea
8. Bio R&D Center Osstem implant Co., Ltd. Busan Korea