1. Key Laboratory of Oral Diseases of Jiangsu Province; Stomatological Institute of Nanjing Medical University; Nanjing Jiangsu China
2. Endodontic Department; School of Stomatology; Nanjing Medical University; Nanjing Jiangsu China
3. Endodontic Department of the West Branch of Hangzhou Dental Hospital; Hangzhou Zhejiang China
4. IVY Dental Clinic; Hangzhou Zhejiang China
5. Department of Dentistry and Central Laboratory; The First People's Hospital of Wujiang District; Nantong University; Suzhou Nantong China