Patent ID: 8636511

Claim:
A dental implant system, comprising: a screw including a head and a threaded end portion; a dental implant comprising: a proximal end; an internal bore extending distally from the proximal end, the internal bore including an upper tapered section, an anti-rotation section having a non-round shape and including at least one planar surface, a lower section having a dimension that is smaller than a dimension of the anti-rotation section, and a threaded section distal of the lower section, the anti-rotation section being located between the upper tapered section and the lower section; an external surface including an external-threaded section, a portion of the anti-rotation section being located distal to a proximal end of the external-threaded section of the implant; and a unitary abutment for attachment to the dental implant comprising: a tapered first section including a first dimension and being received in the upper tapered section of the internal bore of the implant; a second section having a predetermined shape adapted to rotationally lock with the anti-rotation section of the dental implant, the second section including a second dimension that is smaller than the first dimension of the tapered first section; a third section including a third dimension that is smaller than the second dimension and adapted to assist axial insertion of the abutment into the dental implant, the second section being located between the first section and the third section, the third section of the abutment having a cylindrical shape; a tapering section that is above the first section and outside of the implant, the tapering section tapering outwardly in a direction from the implant toward a proximal end of the abutment; a prosthesis-supporting section that is above the tapering section and configured to support a prosthesis, the prosthesis-supporting section having a length that is greater than a length of the tapering section; a through-bore extending along a longitudinal axis of the abutment; and an internal shoulder integrally formed within the abutment and partially defining the through-bore, the internal shoulder engaging the head of the screw when the screw passes through the through-bore and the threaded end portion threadably engaging the threaded section of the internal bore of the dental implant so as to axially retain the abutment on the implant with the tapered first section of the abutment received in the upper tapered section of the internal bore of the implant, the axial retention inhibiting axial movement of the abutment distally and proximally relative to the implant.