الفهرس 
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Abstract
The present study was conducted on clear resin blocks with S-shaped canals to compare
the cyclic fatigue resistance of four NiTi rotary glide path files, two of which based on
continuous rotation (One G and ProGlider), and the other two based on reciprocation (R-Pilot
and WaveOne GoldGlider).
Forty files were used in total, ten files from each type. The study included two main
groups. The continuous rotation files presented the first group. It was then classified into two
subgroups, one group for each brand. The reciprocating files presented the second group. It
was then classified into two subgroups, one group for each brand.
In order to prevent files from extruding beyond the canal terminus, cyanoacrylate
adhesive was painted on the resin blocks around the apical foramen to allow the entire resin
block to be exposed to visually to observe the working files inside the clear resin blocks
during. The adhesive was then left to set for 24 hours.
Each file was allowed to work in the canal till it reached the full working length until its
separation. Video footage was recorded for each specimen. Time elapsed till file separation
was recorded using a digital stopwatch.
The time to fracture was recorded after which the number of cycles to fracture (NCF)
were calculated.
The results were recorded and statistically compared using One-way ANOVA test.