1. Private Practice, Oral and Maxillofacial Surgery Apsun Dental Hospital Seoul Korea
2. Division of Oral and Maxillofacial Surgery Department of Dentistry, College of Medicine Hanyang University Seoul Korea
3. Department of Oral and Maxillofacial Surgery Korea University Anam Hospital Seoul Korea
4. Department of Periodontology and Implantology University of Sassari Sassari Italy
5. Biostatistics Core, Medicine‐Engineering‐Bio (MEB) Global Development Research Center Industry‐University Cooperation Foundation, Hanyang University Seoul Korea