UCLA Plastic Abutments

UCLA Abutments. UCLA abutments provide a foundation to which wax can be added to shape a screwretained crown or bridge or a custom abutment. A reamer is available to clean out the retaining screw hole in the casting. Gold base abutments have machined surfaces. Hexed UCLA abutments should be used for custom abutments and for supporting crowns as they will resist the rotational forces associated with single tooth restorations.