Abstract: The present invention provides a nut for a dental implant and methods related thereto, said nut adapted to be positioned under the sinus membrane of a maxillary sinus of a patient and comprising a hollow body having a first end, a second end and a through passage extending from the first end to the second end, wherein the second end abuts against the maxilla when the nut is positioned under the sinus membrane in a maxillary sinus of a patient and the through passage is adapted for receiving a dental implant at said second end, and wherein said second end further comprises at least two pins, adapted to extend into the maxilla when said nut is implanted under the sinus membrane in a maxillary sinus of a patient.