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 100081, China | Department of Stomatology, Baoding Maternal
and Child Health Hospital, Baoding 071000, China
2. 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 100081, China
3. Department of Stomatology, No. 2 Hospital of Baoding,
Baoding 071051, China