Abstract: An axially-extended, dental adjustment abutment screw having a frustoconical cap with a radiused transition from the bottom of the cap to the upper end of the threaded portion. The radiused shape applies pressure axially in an apical direction when tightened to adjust the height of the prosthetic. The cap also has a centrally-located recess with a multilobed recess that allows secure gripping by an insertion tool for installation in an abutment base at angles within the range of 0-25 degrees.