Zuyan Zhang is Professor of Department of Oral and Maxillofacial Radiology, Peking University School of Stomatology. He was the President of Chinese Society of Oral and Maxillofacial Radiology. He had served at the International Association of Dentomaxillofacial Radiology as an Asian regional director and a member of the Educational Committee of. Dr Zhang also served as editorial board member of OOOOE.