Abstract: Deficiency of bone height in the posterior maxilla is one of the common problems in implant surgery. Maxillary sinus floor elevation expands indications for implanting in the posterior maxillary area. With the progress of clinical technology and the development of oral materials, the bone grafting strategy of maxillary sinus floor elevation surgery has been constantly updated. Although the mechanism of maxillary sinus floor osteogenesis has not been fully elucidated, there is increasing recognition of maxillary sinus lifting without bone grafting. How to select and grasp indications is the key to this strategy. Traditional bone graft materials have different degrees of defects. Therefore, new bone graft auxiliary materials emerge as the time requires, and some of them have been used in clinic. This paper reviewed the research progress on bone augmentation strategy of maxillary sinus floor elevation.

Key words: sinus floor elevation, bone augmentation, without grafting, bone grafting auxiliary materials