1. Department of Periodontology; Peking University School and Hospital of Stomatology; National Engineering Laboratory for Digital and Material Technology of Stomatology; Beijing Key Laboratory of Digital Stomatology; Beijing China
2. Information Center; Peking University School and Hospital of Stomatology; National Engineering Laboratory for Digital and Material Technology of Stomatology; Beijing Key Laboratory of Digital Stomatology; Beijing China
3. Institute of Child and Adolescent Health; School of Public Health; Peking University; Beijing China
4. Social Medicine and Global Health; Department of Clinical Sciences; Lund University; Malmö Sweden
5. Department of General Dentistry; Peking University School and Hospital of Stomatology; National Engineering Laboratory for Digital and Material Technology of Stomatology; Beijing Key Laboratory of Digital Stomatology; Beijing China