Patent ID: 7217130

Claim:
A prosthesis mounting assembly for securing a prosthesis on an implant supported in bone tissue, the prosthesis mounting assembly comprising: an implant including a threaded shaft configured to be screwed into bone tissue, an O-ball abutment, and a multi-faceted integral nut attached to and axially extending from an aft end of the shaft; a metallic appendage that's configured to be carried by the dental implant, and to be milled into a shape suitable to accept a dental prosthetic; and a recess that extends axially upwardly into the appendage from an axial bottom end of the appendage, the recess including an inner wall having a cylindrical portion shaped to engage and fit closely over the O-ball abutment of the dental implant and a multi-faceted portion shaped to engage and fit closely around the integral nut of the implant, forming an annular cement retention cavity between the recess wall and an undercut portion of the implant that is defined by a lower hemisphere of the O-ball abutment of the implant.