Zhang Dan1, Ren Ling2, Yang Ke2, Zhang Yang1, Xue Nan1
1Department of Orthodontics, School of Stomatology, China Medical University , Shenyang 110002, Liaoning Province, China;
2Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, Liaoning Province, China
Contact:
Zhang Yang, Professor, Chief physician, Department of Orthodontics, School of Stomatology, China Medical University , Shenyang 110002, Liaoning Province, China
zhangyangcmu@yahoo.com.cn
About author:Zhang Dan☆, Studying for doctorate, Lecturer, Attending physician, Department of Orthodontics, School of Stomatology, China Medical University , Shenyang 110002, Liaoning Province, China
dan20040326@sohu.com