The MUA abutment is a small metal connector piece used to join a dental implant to a dental prosthetic. Multi-unit abutments make it possible to switch out a dental prosthetic without removing the entire implant. Multi-unit abutments were designed to serve the purpose of connecting endosseous dental implants and multiple implant screw-retained restorations. They are widely used by most dentists, especially on the standard All-on-4 or All-On-6 treatments and are considered some of the most secure and easier options for maintaining a dental prosthesis.