Assessment of elemental composition, microstructure, and hardness of stainless steel endodontic files and reamers

Journal of Endodontics
Myrsini DarabaraGeorge D Papadimitriou

Abstract

The purpose of this study was to determine the elemental composition, microstructure, and hardness of commercially available reamers, K files, and H files. Five instruments of each type from different manufacturers (Antaeos, FKG, Maillefer, Mani, and Micromega) were embedded in epoxy resin along their longitudinal axis. After metallographic grinding and polishing, the specimens were chemically etched and their microstructure investigated under an incident light microscope. The specimens were studied under a scanning electron microscope, and their elemental compositions were determined by energy dispersive X-ray microanalysis. The same surfaces were repolished and X-ray diffraction was performed. The same specimen surface was used for the assessment of the Vickers hardness (HV200) by using a microhardness tester with a 200-g load and 20-s contact time. The hardness results were statistically analyzed with two-way ANOVA and Tukey's test (a = 0.05). All files demonstrated extensively elongated grains parallel to longitudinal file axis because of cold drawing. The elemental composition of Maillefer and Mani reamers, Antaeos K files, and Mani H files were found in the range of AISI 303 SS, whereas all the rest were determined as AIS...Continue Reading

References

May 1, 1977·Journal of Endodontics·E P LautenschlagerM A Heuer
Apr 1, 1976·Journal of Endodontics·L B ChernickM A Heuer
Aug 1, 1984·Journal of Endodontics·J B Roane, C Sabala
Feb 1, 1996·Journal of Endodontics·P J Brockhurst, I Denholm
Jun 18, 2002·Journal of Endodontics·Spiros Zinelis, John Margelos

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Citations

May 2, 2018·Biomedizinische Technik. Biomedical Engineering·Spiros Zinelis, Youssef S Al Jabbari
Jun 9, 2016·Interface Focus·Amre R Atmeh, Timothy F Watson
Jan 11, 2007·International Endodontic Journal·X R NóvoaF Magán-Muñoz
Jan 19, 2013·Journal of Applied Oral Science : Revista FOB·Youssef S Al JabbariSpiros Zinelis
Mar 30, 2017·The Journal of Contemporary Dental Practice·Caroline SoldaFernando B Barletta

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