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