Authors : Anakha Santhosh; Rajesh Pillai; Afzal A; Vineet R V; Arunima G S; Athira Ramesh ; Sandeep K V

Volume/Issue : Volume 10 - 2025, Issue 2 - February

Google Scholar : https://tinyurl.com/4r8e3hbf

Scribd : https://tinyurl.com/4wm5h93k

DOI : https://doi.org/10.5281/zenodo.14881341

Abstract : Aim The aim of the study was to compare the dentinal crack formation by different heat treated single file systems ,namely TruNatomy ,One Curve, AF F One and Protaper F1 using Scanning Electron microscopy.  Materials And Methods Forty extracted mandibular premolars were taken. After cleaning the soft tissue debris and calculus from the surface of the teeth, the teeth were decoronated with a low speed diamond disc under water cooling to obtain the roots of standardized lengths of 12mm. In group 1, root canals were prepared with the TruNatomy files. In Group 2, One Curve files were used to prepare the canals. In Group 3, AF F One file was used . In Group 4, the root canals were prepared with Protaper F1. During cleaning and shaping ,irrigation was performed with sodium hypochlorite and normal saline. Then after root canal preparation ,all canals were irrigated with 2 ml distilled water and the roots were kept moist in distilled water throughout all experimental procedures to prevent the effect of dehydration on roots.  Conclusion TruNatomy rotary files produced fewer dentinal cracks when compared to other files tested. AF F One files caused statistically significant increase in dentinal crack formation than other tested groups.. There was no statistically significant difference in crack formation between One Curve and ProTaper Gold files.

Keywords : Dentinal Crack, Heat Treated Files, Scanning Electron Microscope.

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