US Patent 10130447 Interface element for dental prostheses

An interface element for dental prostheses, having a hollow cylindrical body with two different sections, one lower section (a) of greater outer diameter and another upper section (b) of smaller outer diameter, each provided externally with retention circular grooves (2). The element had an internal seat (4) for a screw head (5) which fixes the implant, and a lower base (6). A side mortise (7) is provided that covers the upper section (b) and provides a side opening for the inclined entrance of the screw (5) and screwdriver (8). The element further includes two flat surfaces (9) at diametrically opposite sides of the lower section.