1. Department of Advanced Materials Engineering, Gangneung-Wonju National University, Gangneung, Gangwon, 25457, South Korea
2. Department of Periodontology, Gangneung-Wonju National University, Gangneung, 25457, South Korea
3. Department of Orthodontics, Gangneung-Wonju National University, Gangneung, 25457, South Korea