Zhang Dongsheng is the chief physician, director, professor and doctoral supervisor of oral and maxillofacial surgery in Shandong Provincial Hospital.

He has rich experience in comprehensive sequential treatment of oral and maxillofacial malignant tumors, functional and morphological repair of oral and maxillofacial defects, oral and maxillofacial trauma plastic surgery, maxillofacial plastic surgery and cosmetic repair, implant repair and craniofacial implantation of various tooth defects, diagnosis and treatment of hemangioma and trigeminal neuralgia, and diagnosis and treatment of other difficult and serious diseases in oral and maxillofacial surgery.

Zhang Shizhou is also the chief physician of oral and maxillofacial surgery in Shandong Provincial Hospital. He is good at the diagnosis and treatment of oral and maxillofacial tumors, especially the comprehensive sequential treatment of oral and maxillofacial malignant tumors and the repair and reconstruction of tissue defects.