![Sinus_lift](https://www.nationalelfservice.net/cms/wp-content/uploads/2021/07/Sinus_lift-150x150.gif)
This review of the efficacy of graftless maxillary sinus membrane elevation using the lateral window approach for implantation in the atrophic maxilla included 9 RCTs. While some difference between grafted and graftless sinus lifts were shown at 6 months only a limited number of small short term trials were available.
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