Affiliation: | 1. Prosthodontist, Restoration/Data analysis, 4th Dental Department, Peking University School and Hospital of Stomatology, Beijing, China;2. Professor, Critical revision of article, President of Chinese Stomatological Association, Beijing, China;3. Professor, Surgery/Approval of article, Dean of 4th Dental Department, Peking University School and Hospital of Stomatology, Beijing, China |