Bian Zhuan,,,,, Zhang Qi, Du, the tutors of periodontology are,, the tutors of oral and maxillofacial surgery are Long Xing, Zhao Fangyi, Shang Zhengjun, Li Zubing and Zhang Wenfeng, and the tutors of prosthodontics are Wang Yining, Huang Cui, Wang Jiawei, Shi Bin and He Hong. I hope it helps you.