1. Department of Oral and Maxillofacial Surgery, College of Dentistry, Chosun University & Institute of Dental Science, Chosun University, Gwangju 61452, Korea
2. Department of Biomedical Engineering, Chonnam National University, Yeosu 59626, Korea
3. Research Center of Healthcare Biomedical Engineering, Chonnam National University, Yeosu 59626, Korea