1. Department of Prosthodontics Dental & Ophthalmic Clinic of Putuo District Shanghai China
2. Department of Periodontics Dental & Ophthalmic Clinic of Putuo District Shanghai China
3. Department of Oral Medicine Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine Shanghai China
4. Shanghai Key Laboratory of Stomatology, College of Stomatology National Center for Stomatology, National Clinical Research Center for Oral Diseases, Shanghai Jiao Tong University Shanghai China