Patent ID: 8951042
Filing Date: 2015-02-10
Classification: A61C

Abstract:
1. A dental prosthesis comprising: a cap screw having a screw head and a conical cap part disposed axially behind said screw head, an implant body having a receptacle and an internal thread disposed axially in front of the receptacle, and an abutment inserted into the receptacle of the implant body and forming a passage opening for accommodating the cap screw, said passage opening comprising a first opening region and a conical shoulder disposed axially adjacent said first opening region, said conical shoulder having an opening angle, wherein when the cap screw is inserted into the passage opening of the abutment, the screw head of the cap screw engages in the internal thread of the implant body, wherein the cap screw is supported via the conical cap part on the conical shoulder of the abutment, wherein the conical cap part has at least a first conical section and a second conical section disposed consecutively in an axial direction, the first and second conical sections having respective conical angles that differ from the opening angle of the conical shoulder, and wherein when the first conical section contacts the conical shoulder without pressure the second conical section engages with play into the conical shoulder and when the second conical section contacts the conical shoulder without pressure the first conical section engages with play into the conical shoulder.