Department of Endodontics,The Affiliated Hospital of Qingdao University,School of Stomatology,Qingdao University,Qingdao,Shandong 266003,China

Department of Developmental Dentistry,School of Dentistry,The University of Texas Health Science Center at San Antonio,San Antonio,TX 78229,USA

Oral Implantology Center,Jinan Stomatological Hospital,Jinan,Shandong 250001,China

Department of Endodontics,School and Hospital of Stomatology,Cheeloo College of Medicine,Shandong Key Laboratory of Oral Tissue Regeneration,Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration,Shandong University,Jinan,Shandong 250012,China

Department of Pediatric Dentistry,School of Stomatology,The Fourth Military Medical University,Xi'an,Shaanxi 710032,China

Laboratory of Clinical Applied Anatomy,Department of Human Anatomy,School of Basic Medical Sciences,Fujian Medical University,Fuzhou,Fujian 350108,China

Key Laboratory for Oral Biomedical Research of Zhejiang Province,Affiliated Hospital of Stomatology,Medical College,Zhejiang University,Hangzhou,Zhejiang 310027,China

Department of Stomatology,Nanfang Hospital,Southern Medical University,Guangzhou,Guangdong 510515,China

UBC Faculty of Dentistry,University of British Columbia,Vancouver,BC V6T 1Z3,Canada

School of Graduate Studies and Research,Meharry Medical College and Research Biologist,Research Service Nashville VA Medical Center,Nashville,TN 37208,USA

State Key Laboratory Breeding Base of Basic Science of Stomatology(Hubei-MOST),Key Laboratory for Oral Biomedicine of Ministry of Education(KLOBM),School and Hospital of Stomatology,Wuhan University,Wuhan,Hubei 430079,China