Another concept for restoring a full arch with a fixed prosthesis is called the All-on-4 protocol. An All-on-4 prosthesis is a screw-retained hybrid prosthesis supported by four or five dental implants.
An implant-supported hybrid prosthesis is an acrylic resin complete fixed dental prosthesis and supported by implants might be a solution in extreme cases that the need of the restoration for esthetics, function, lip support, and speech.
