The purpose of this study was to examine the number of rotations to failure of two different rotary file systems, EndoSquence Brassler USA (Savannah, GA) and GT(TM) series X(TM). Files sizes 20,30,40 with 0.04, 0.06 tapers of GT series X and Endo Sequence files size and taper used were 20, 30, 40 with 0.04 and 0.06 taper. Like tip and tapers were compared between systems. All files tested were 25mm in length. Files were allocated into 12 groups of 10 files each, and mounted to a universal testing machine. Each file was rotated at 300 rpms until fractured occurred. The number of rotations to fracture were calculated. A two-way ANOVA indicated that each of the 12 groups were significantly different (p < .0001). The Brand Tip/Taper interaction indicated that the differences between the brands varied by Tip/Taper combination (p < .0001). The tip/taper combination 20/.04, the GT series X file rotated 1.4 times longer than the EndoSequence (p = 0.0027). The tip/taper combination 20/.06, the GT series X file rotated 1.61 times longer than the EndoSequence (p = <.0001). The tip/taper combination 30/.04, the GT series X file rotated 3.67 times longer, than the EndoSequence (p = <.0001). For the tip/taper combination 30/.06, the GT series X file rotated 2.63 times longer than the EndoSequence (p = <.0001). For the tip/taper combination 40/.06, the GT series X file rotated 4.05 times longer than the EndoSequence (p = <.0001). In comparing all these tip and taper combinations GT series X was significantly higher rotations to failure. Comparing tip/taper combination 40/.04, the GT series X file rotated 1.22 times longer, however, this was not significantly different than the Sequence (p = 0.0707). The results suggested that the number of rotations to failure for GT series X files were greater than the EndoSequence file of the same tip and taper combination.
| Identifer | oai:union.ndltd.org:vcu.edu/oai:scholarscompass.vcu.edu:etd-2683 |
| Date | 21 April 2009 |
| Creators | Wayment, Nathan |
| Publisher | VCU Scholars Compass |
| Source Sets | Virginia Commonwealth University |
| Detected Language | English |
| Type | text |
| Format | application/pdf |
| Source | Theses and Dissertations |
| Rights | © The Author |
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