Chief of Department of implant dentistry, Tianjin Stomatological Hospital, Commissar of Oral Implantology Committee of Chinese Stomatological Association (CSA). Dr. Qi Yi engages in oral surgery, oral implant surgery, scientific research and education. His main professional expertise and research fields are dental implant prosthetics, immediate implants and immediate prosthetics after implants for single, partial and fully edentulous. Dr. Qi Yi is very proficient in the bone augmentation technology using GBR, onlay bone grafting and sinus lift.