Objective To explore the effect of artificial bone powder after maxillary sinus lift on dental osseointegration. Methods130 patients undergoing maxillary sinus lift surgery from January 2015 to January 2016 in the Department of Stomatology,Rugao People's Hospital of Jiangsu Province,were selected and randomly divided into observation group and control group,65 cases in each group.The artificial bone powder was implanted into the control group after the operation,but not implanted in the observation group af...