All surgeries carry risks and the potential for complications. A perfect outcome is never guaranteed. However, sinus-lift surgery (if performed by a trained surgeon) should result in a good outcome- acknowledging risks of bleeding, infection, loss of any graft material, anesthesia risks, and potential need for additional surgery. Oral & Maxillofacial Surgeons are well trained in this procedure and management of complications.

That procedure has a very safe track record if done by a board-certified specialist. The biggest risk is typically infection, and that would be less than a 5% risk.

Yes, a sinus lift/sinus augmentation surgery is safe. The best method to answer your questions regarding this type of procedure is to schedule an appointment with the surgeon.
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The response is not a simple one. There are multiple factors in deciding the safety of sinus surgery. It is a safe procedure relative to a particular patient's health, specifically sinus
infection related issues. In other words, if a patient has no sinus pathology or issues, then the procedure is predictably safe.

E. Ostro, DMD