Framework Design Materials for Implant Fixed Restorations

A review of current and past literature regarding implant-retained frameworks for full- arch, hybrid restorations. Benefits, limitations, and complications associated with fixed implant prostheses were discussed including the relative inaccuracy of casting/implant fit and improved accuracies noted with CAD/CAM framework/implant fit; cantilever extensions that were initially designed arbitrarily versus frameworks designed relative to the A/P implant spread; and the mechanical properties associated with implant frameworks including I and L-beam designs. There have been many developments in the areas of nonprecious or base metals used for dental restorations and implants in the last century. The wide array of materials available allows the clinician to choose the material and thus properties for the desired application.