1. Department of General Dentistry, The Third People’s Hospital of Bengbu, Bengbu, Anhui, China
2. Department of General Dentistry, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
3. College of Stomatology, Shanghai Jiao Tong University, Shanghai, China
4. National Center for Stomatology; National Clinical Research Center for Oral Diseases, Shanghai, China
5. Shanghai Key Laboratory of Stomatology, Shanghai, China
6. Department of Stomatology, The First Affiliated Hospital of Bengbu Medical College, Bengbu, Anhui, China
7. Community Health Service Center of Huajing Town, Xuhui District, Shanghai, China