Article:

Placement of endosseous implants in the posterior atrophic maxilla is often restricted because of a lack of supporting alveolar bone. To overcome this anatomic limitation, sinus lifting has become a common surgical procedure in oral implant treatment. Since the initial application of sinus lift augmentation and implant placement in the mid-1970s, many articles have been published describing predictable techniques with reliable long-term results. These procedures have been used for multiple implant restorations. Single-tooth implant–supported restorations are an acceptable restorative option.In situations where insufficient alveolar bone remains for a single maxillary implant, the sinus lift procedure can be used.