1. Department of Periodontology, Nanjing Stomatological Hospital, Affiliated Hospital of Medical School, Research Institute of Stomatology Nanjing University Nanjing China
2. Department of Periodontology, College of Stomatology Xi’an Jiaotong University Xi’an China
3. Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research, College of Stomatology Xi’an Jiaotong University Xi’an China