The effect of increased crown-to-implant ratio on single-tooth locking-taper implants.

Purpose: It has been proposed that increased crown heights lead to greater crestal stresses on dental implants, crestal bone loss, and other complications. The purpose of this study was to evaluate the effect of increased crown-to-implant ratio (C/IR) on single-tooth implants.

Materials And Methods: A retrospective cohort study was conducted between July 2001 and August 2003.