1 Department of Bone Metabolism, School of Stomatology Shandong University, Shandong Provincial Key Laboratory of Oral Tissue Regeneration, Wenhua West Road 44-1, Jinan 250012, China; Department of Endodontics, Jinan Stomatological Hospital, Jinan, China.
2 Department of Bone Metabolism, School of Stomatology Shandong University, Shandong Provincial Key Laboratory of Oral Tissue Regeneration, Wenhua West Road 44-1, Jinan 250012, China.
3 Department of Bone Metabolism, School of Stomatology Shandong University, Shandong Provincial Key Laboratory of Oral Tissue Regeneration, Wenhua West Road 44-1, Jinan 250012, China. Electronic address: liminqi@sdu.edu.cn.