1. Department of Prosthodontics; Ninth People's Hospital, School of Medicine, Shanghai Jiao Tong University; Shanghai 200011 China
2. Oral Bioengineering and Regenerative Medicine Lab, Shanghai Key Laboratory of Stomatology; Ninth People's Hospital, School of Medicine, Shanghai Jiao Tong University; Shanghai 200011 China
3. Department of Oral and Maxillofacial Surgery; General Hospital, Ningxia Medical University; Yinchuan 750004 China
4. Ningxia Medical University; Yinchuan 750004 China
5. Department of Oral and Maxillofacial Surgery; Ninth People's Hospital, School of Medicine, Shanghai Jiao Tong University; Shanghai China
6. Department of Orthodontics; Ninth People's Hospital, School of Medicine, Shanghai Jiao Tong University; Shanghai China