1. State Key Laboratory of Oral Diseases National Clinical Research Center for Oral Diseases Department of Prosthodontics West China Hospital of Stomatology Sichuan University Chengdu Sichuan China
2. Dept. of Implant Stomatological Hospital Southern Medical University Guangzhou Guangdong China
3. State Key Laboratory of Oral Diseases National Clinical Research Center for Oral Diseases Department of Implantology West China Hospital of Stomatology Sichuan University Chengdu Sichuan China
4. State Key Laboratory of Oral Diseases National Clinical Research Center for Oral Diseases Department of Orthodontics West China Hospital of Stomatology Sichuan University Chengdu Sichuan China