Abstract
Maxillary sinus lift has been applied in clinical practice as a solution for vertical bone insufficiency in the maxillary posterior region. In order to reduce the incidence of sinus mucosa perforation, bleeding, maxillary sinusitis and other complications, it is necessary to conduct radiological ex-amination of the related structures of maxillary sinus before surgery. Cone-beam computed to-mography (CBCT) can play a good role in the imaging of maxillary sinus and has been widely used in clinical practice. In this paper, the current status of the study on the local anatomical structure of maxillary sinus observed by CBCT before maxillary sinus surgery was reviewed.