Comparison of the self-adjusting file with rotary and hand instrumentation in long-oval-shaped root canals.

Introduction: The aim of this study was to compare the root canal debridement ability of the self-adjusting file (SAF) with ProFile rotary (PF) and hand filing (HF) instrumentation in long-oval-shaped canals.

Methods: Extracted human teeth (n = 30) were selected on the basis of a root canal ratio of ≥2.5:1 measured 5 mm from the root apex.