1. Department of Periodontics and Oral Medicine College of Stomatology Guangxi Medical University Nanning China
2. Guangxi Key Laboratory of AIDS Prevention and Treatment Guangxi Medical University Nanning China
3. Guangxi Key Laboratory of Oral and Maxillofacial Rehabilitation and Reconstruction Guangxi Universities and Colleges Key Laboratory of Oral and Maxillofacial Surgery Disease Treatment Guangxi Clinical Research Center for Craniofacial Deformity Nanning China