The attachments recommended for a unilateral free-end distal extension partial denture assure the comfort for the patient because don't need a cross arch stabilization. One of the most used resilient attachment is represented by FM Hinge (New Anchorvis), an extracoronal, hinge resilient distal extension attachment. It is formed by two elements: a metallic female, designed for adhering into the framework of the denture base and a male, made of fully combustible plastic high fusing for casting to precious and semiprecious alloys. The retention of the denture is due to the friction achieved through the male and female elements. The attachment should also be resilient to transfer stress to the ridge and away from the abutment teeth. Resilient attachments represent a functional, aesthetic and biological solution in unilateral extended edentation.