1. Department of Oral and Maxillofacial Surgery, Hallym University Medical CenterDongtan Sacred Heart Hospital Hwaseong Korea
2. Department of Oral and Maxillofacial SurgerySeoul National University Dental Hospital Seoul Korea
3. Department of Oral and Maxillofacial Surgery, Korea Medical University Medical CenterGuro Hospital Seoul Korea
4. Biomedical Implant Convergence Research CenterAdvanced Institutes of Convergence Technology Suwon Korea
5. Department of Material Science and EngineeringSeoul National University Seoul Korea