[1] Shanghai Jiao Tong Univ, Sch Med, Shanghai Peoples Hosp 9, Chinese Acad Med Sci,Dept Orthodont,Coll Stomatol,, Shanghai 200011, Peoples R China
[2] Shanghai Res Inst Stomatol, Oral Bioengn Lab, Shanghai 200011, Peoples R China
[3] Shanghai Res Inst Stomatol, Shanghai 200011, Peoples R China
[4] Sichuan Univ, West China Hosp Stomatol, Natl Ctr Stomatol, Natl Clin Res Ctr Oral Dis,State Key Lab Oral Dis,, Chengdu 610041, Sichuan, Peoples R China
[5] Weifang Peoples Hosp Stomatol Hosp, Dept Stomatol, Weifang 261041, Peoples R China
[6] Nanyang Technol Univ, Sch Phys & Math Sci, Singapore 637371, Singapore