Cutting efficiency of endodontic instruments. Part 1: A quantitative comparison of the tip and fluted regions

A Comparison of Apical Transportation and Length Control between EndoSequence and Guidance Rotary Instruments

“…Instrument tip design has been described as cutting, noncutting, or partially cutting. Studies have shown that tip design helps the file to stay centered within the canal and affects the shaping of the root canal system (12,13). Flutes are grooves on the working surface to collect and remove debris from dentinal walls.…”

Development of a Finite Element Analysis Model With Curved Canal and Stress Analysis

“…It has been proven that excessive preparation at the curvature and at the apex causes transportation and enlargement of the canal orifice (7)(8)(9)(10)(11). Whether these changes have influences on stress distribution in pulpless teeth or whether the thin dentine at the curve site or root apex are likely to be the initial part of the VRF is unknown.…”

Location of contact areas on rotary Profile1 instruments in relationship to the forces developed during mechanical preparation on extracted teeth

“…(1980) introduced the use of the bovine bone test specimen. Miserendino et al . (1985) continued to use this model for studying cutting efficiency.…”