1. Faculty of Odonto-Stomatology, Hue University of Medicine and Pharmacy, Hue University, 06 Ngo Quyen Street, Hue City, Thua Thien Hue 530000, Vietnam
2. Department of Dental Biomaterials and Institute of Biodegradable Material, Institute of Oral Bioscience, BK21 Plus Project, School of Dentistry, Jeonbuk National University, 567, Baekje-daero, Deokjin-gu, Jeonju 54896, Jeollabuk-do, South Korea