1. The Affiliated Tai’an City Central Hospital of Qingdao University, Tai’an, 271000 Shandong Province, China
2. Department of Stomatology, Xuzhou Central Hospital, Xuzhou, 221000 Jiangsu Province, China
3. Shanghai Jiao Tong University School of Medicine, Shanghai 200011, China
4. Department of Stomatology, Tai’an Second Hospital of Traditional Chinese Medicine, Tai’an, 271000 Shandong Province, China
5. Shanghai Key Laboratory of Stomatology, Department of Oral Surgery, Ninth People’s Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, No. 639, Zhi Zao Ju Rd, Shanghai 200011, China