PMID: 8596068Oct 1, 1995Paper

Properties of endodontic hand instruments used in rotary motion. Part 2. Instrumentation of curved canals

Journal of Endodontics
E SchäferW Hoppe

Abstract

The shaping abilities of nickel-titanium K-files, stainless steel reamers, K-files, and flexible stainless steel instruments with conventional cutting tips and with modified noncutting tips were investigated under standardized conditions using a computer-driven testing device simulating the clinical use of the instruments. Simulated root canals with a 42-degree curvature were sequentially enlarged from #15 to #35. Undesirable changes in the canal shape as a result of instrumentation occurred in all cases. None of the instruments were able to remove material on the whole length of the inner side of the curvature, whereas all instruments removed material on the whole length of the outer side of the curvature, resulting in slight to severe bulging. The extent of undesirable changes in the canal shape depended typically of the type of instrument used. Best instrumentation results were obtained with flexible instruments with noncutting tips.

Citations

Apr 20, 2001·International Endodontic Journal·S A Thompson, P M Dummer
Jul 29, 2006·International Endodontic Journal·C H TroianE P M Oliveira
Feb 23, 2013·Restorative Dentistry & Endodontics·Young-Sil Yoo, Yong-Bum Cho
Sep 23, 2016·Brazilian Dental Journal·Mohamed I El-AnwarTarek M Abd El-Wahab
Mar 4, 2008·International Endodontic Journal·I TsesisA Kfir
Sep 5, 2006·International Endodontic Journal·G B YangH K Wu
Nov 27, 2008·Australian Endodontic Journal : the Journal of the Australian Society of Endodontology Inc·Carlos M Aguiar, Andréa C Câmara
Oct 1, 2015·Australian Endodontic Journal : the Journal of the Australian Society of Endodontology Inc·Sirawut Hiran-usHideaki Suda
Nov 6, 2012·The Bulletin of Tokyo Dental College·Denise Piotto LeonardiFlares Baratto-Filho
Apr 20, 2001·International Endodontic Journal·S A Thompson
Apr 1, 1997·Endodontics & Dental Traumatology·E Schäfer
Sep 1, 1996·International Endodontic Journal·E Schäfer, J Tepel

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