Professional Doctorate Specialist in periodontology and implantology Graduated from Peking University of Stomatology Specializing in periodontal and implant treatment. Especially focusing on soft tissue and hard tissue management around natural teeth and implant, including root coverage, free gingival graft, pontic area augmentation, guided bone regeneration, sinus lift and peri-implantitis treatment. Co-author of the book “Periodontal Surgery for Root Coverage: A step-by-step Guide”. Co-author of three peer-reviewed SCI publications Participated in the transplantation of books such as “Dental Implant Prosthetics” and “Esthetic Perio-Implantology” Member of Periodontal Committee of Chinese Stomatological Association Lecturer for Straumann and Geistlich Holding many periodontal and implant training programs such as periodontal root coverage and Sino-Us UIE implant master training program. Dr. Yan was the translator for many famous periodontal and implant experts including Maurizio Tonetti、Markus Hürzeler、Joseph Kan、Jaime Lozada、Istvan Urban etc. Besides, he has been the simultaneous interpreter for gIDE international implant master education program.