For the current Oral Regeneration Topic Nikolaos Tatarakis spoke with Bjarni Pjetursson and his key publication on Sinus Augmentation. It aimed to systematically review the outcome of sinus floor elevation and the survival of implants inserted in combination with sinus floor elevation. In the interview, Pjetursson also reveals what has changed clinically since the study was published and how this would affect the study design today. Other interesting points Pjetursson raises are the much-discussed clinical practice of using a membrane over the sinus window, the graft material and whether or not to use a graft.