1. Department of Periodontology Peking University School and Hospital of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology Beijing China
2. Department of Periodontology Stomatology Hospital School of Medicine Zhejiang University Hangzhou China
3. Department of Periodontology Second Dental Center Peking University School and Hospital of Stomatology Beijing China
4. Department of Oral Implantology Guanghua School of Stomatology Hospital of Stomatology Guangdong Provincial Key Laboratory of Stomatology Sun Yat‐sen University Guangzhou China