PM Nanos S (Straight), EverEdge™ 2.0, Perio Knife PM Nanos S (Straight), EverEdge™ 2.0, Perio Knife Sign in to save to your list PMNANOSS Designed to help in the creation of a partial or full thickness envelope flap during connective tissue grafting procedures in perio-plastic surgery and implant surgery. Where to Buy Ask a specialist