Prof. Dr. Jeong Joon Han

__Prof. Jeong Joon Han__, DDS, PhD is an oral and maxillofacial surgeon and an adjunct professor in the School of Dentistry at Seoul National University, and practices at Seoul National University Dental Hospital in Seoul, South Korea. He is a clinical and researcher in the areas of orthognathic surgery, maxillary sinu disease and medication-related osteonecrosis of the jaw (MRONJ) and heavily emphasizes digital and image-guided surgical innovation. ### Professional Background - __Based in:__ Seoul, South Korea ### Innovations & Contributions Dr. Han is credited with the introduction of a clinical maxillofacial surgery into applied research on digital surgical planning, bone regeneration, and jaw osteonecrosis. - __Robot-assisted orthognathic surgery:__ Principal investigator on a feasibility study of robot-arm and image-guided maxillary repositioning to enhance Le Fort I accuracy (J Clin Med, 2021). - __Modified endoscopic-assisted sinu surgery (MESS):__ Published volumetric results study on an improved technique of maxillary sinu pathology ( *Scientific Reports, 2024). - __MRONJ guidelines:__ Co-author of the 2021 and 2025 Korean multidisciplinary position statements about medication-related osteonecrosis of the jaw issued jointly by the Korean Society of Bone and Mineral Research and the Korean Association of Oral and Maxillofacial Surgeons. - __Bone regeneration:__ author on a multicenter clinical trial of rhBMP-2/2-TCP to preserve alveolar ridges.