1. Oral Maxillofacial Head‑Neck Key Laboratory of Medical Biology and Central Laboratory, Liaocheng People's Hospital, Shandong 252000, P.R. China
2. Department of Oral and Maxillofacial Surgery, Liaocheng People's Hospital, Shandong 252000, P.R. China
3. Department of Microbiology, Weifang Medical University, Weifang, Shandong 261053, P.R. China
4. School of Biomedical Sciences, Charles Sturt University, Wagga Wagga, New South Wales 2650, Australia