Biomechanical behavior of extra-narrow implants after fatigue and pull-out tests.

Statement Of Problem: Narrow implants have limited indications, and implant fracture may occur when these indications are not followed.

Purpose: The purpose of this in vitro study was to investigate the mechanical behavior of a 2.9-mm-diameter implant using a fatigue limit test and to investigate the Morse effect of 2 different Morse taper systems, 2.