신흥 임상포스터 대상
Axial displacements of cemented prosthesis in external and internal implant-abutment connection Introduction Axial displacement is a unique biomechanical feature of internal conical connection (ICC) implants. ICC abutments lacking structures for vertical stop might sink axially into the inner surface of the implant. Axial displacement of abutments causes several mechanical problems in ICC implants. Axial displacement might occur during screw tightening or occlusal loading. The wedge effect of the abutment increases with the increase in tightening torque, resulting in a tight connection at the