The present invention concerns a mounting element (2) for a dental prosthesis (1), the prosthesis (1) including at least one bridge, the mounting element (2) and prosthesis (1) being formed using 3D printing. The mounting element (2) has an axis of elongation and comprises an engagement portion, for fixedly engaging the prosthesis (1) and an attachment portion (19), for enabling secure attachment of the prosthesis (1) to the jig (6) during machining. The mounting element (2) further comprises a registration portion (17) for aligning, in use, the prosthesis (1) in a precise position and/or orientation on a jig (6) during machining. The registration portion (17) preferably comprises a tapering portion, for example having a conically tapering outer surface (20) and/or at least one planar registration surface (11) extending parallel to the axis (14). The registration portion (17) may further comprise at least one planar inclined surface (21), continuous with the conically tapering outer surface (20), each inclined surface (21) being inclined relative to the axis (14) and intersecting a respective planar registration surface (11). The angle of taper of the tapering portion, the conically tapering outer surface (20) and/or angle of inclination of the inclined surface (21) relative to the axis (14) is c. 10 degrees. The mounting element (2) preferably further includes an open recess having, e.g., a T-shaped axial cross section though which, in use, a fixing element passes, for fixedly attaching the prosthesis (1) to the jig (6). A method of fabricating a dental prosthesis (1) and a dental prosthesis (1) are also disclosed.