Dr. Ho-Jin Kim is an Assistant Professor in the Department of Orthodontics at Kyungpook National University, Daegu, Korea. He received DDS, MSD, and PhD degrees at the School of Dentistry, Kyungpook National University. He completed his orthodontic training course in the Department of Orthodontics at Kyungpook National University Dental Hospital and is a certified orthodontic specialist in Korea. His research focuses on investigating the characteristics of patients with facial asymmetry using CBCT and their orthopedic and surgical-orthodontic treatment using microimplant. Also, he is especially interested in long-term alveolar bone change after orthodontic treatment and investigates 3D print aligners using various digital software. He actively publishes scientific articles on those research issues in international orthodontic journals (American Journal of Orthodontics and Dentofacial Orthopedics, The Angle Orthodontists, Progress in Orthodontics, Journal of Clinical Orthodontics, The Korean Journal of Orthodontics, etc) and also participates in the peer-review process of the orthodontic journals.