1 School of Stomatology, Nanchang University, Nanchang, China.
2 Key Laboratory of Oral Biomedicine, Nanchang, China.
3 Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, China.
4 Department of Orthodontics, School and Hospital of Stomatology, Peking University, Beijing, China.
5 Department of Oral and Maxillofacial Surgery and Pharmacology, School of Dental Medicine, University of Pennsylvania, Philadelphia, PA, United States.