1 Department of Orthodontics, Peking University School and Hospital of Stomatology, Haidian District, Beijing, China Center for Craniofacial Stem Cell Research and Regeneration, Peking University School and Hospital of Stomatology, Haidian District, Beijing, China.
2 Department of Orthodontics, Peking University School and Hospital of Stomatology, Haidian District, Beijing, China Center for Craniofacial Stem Cell Research and Regeneration, Peking University School and Hospital of Stomatology, Haidian District, Beijing, China yanhengzhou@gmail.com.
3 Center for Temporomandibular Disorders and Orofacial Pain, Peking University School and Hospital of Stomatology, Haidian District, Beijing, China Central Laboratory, Peking University School and Hospital of Stomatology, Haidian District, Beijing, China kqyehuagan@bjmu.edu.cn.