Maintaining a smooth, reproducible, glide path when
successive files are used is an important characteristic
of proper root canal preparation. Glide path enlargement
allows for safer, more effective canal shaping with
increased prospects of successful treatment outcomes.
Many authors have proposed that rotary nickel titanium
(NiTi) instruments should not be used for canal preparation
without prior glide path preparation. In this paper
the authors discuss a review of the literature on some
of these glide path techniques and illustrate the correct
clinical application of some of these preparation techniques
through clinical case studies.