Root Canal Shaping Using Nickel Titanium, M-Wire, and Gold Wire: A Micro–computed Tomographic Comparative Study of One Shape, ProTaper Next, and WaveOne Gold Instruments in Maxillary First Molars

Vyver, Petrus Jacobus Van der; Paleker, Farzana; Vorster, Martin; Wet, F A de

doi:10.1016/j.joen.2018.09.013

Cited by 46 publications

(44 citation statements)

References 28 publications

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“…ese results could be explained by the improved flexibility of WOG that would reduce canal transportation and maintain the canal geometry. e shaped canals demonstrated some degrees of canal transportation which is consistent with previous studies [11,[13][14][15]. e slight canal transportation in XPS and WOG toward the outer side at the canal exit level might be attributed to the tendency of the NiTi file to return to its original shape by the restraining forces of the file [3].…”

Section: Discussionsupporting

confidence: 89%

“…e WOG with the apical size of 0.25 mm and variable taper design of 7% maintained the canal exit in the original place with slight transportation. Previous studies revealed the ability of WOG to better perform canal shaping when compared with WaveOne [11], ProTaper Gold [14], Pro-Taper Next [15], and One Shape [15], respectively. Also, Ozyürek et al [12] found that the WOG caused a lower level of resin removal in simulated canals with double curvature.…”

Section: Discussionmentioning

confidence: 99%

“…Literature showed that canal shaping is influenced by many factors such as file's alloy and geometry, thermomechanical manufacturing, and motion kinematics [9][10][11][12][13][14][15]. Contemporary advancements in NiTi file production contributed to the evolvement of single NiTi systems, in which the mechanical preparation of the root canal is completed using one file.…”

Section: Introductionmentioning

confidence: 99%

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Shaping Ability of XP Endo Shaper File in Curved Root Canal Models

Alfadley

Alrajhi

Alissa

et al. 2020

International Journal of Dentistry

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e aim of this study was to assess the shaping ability of the XP Shaper (XPS) file in severely curved canal models under simulated body temperature and compare it with that of the WaveOne Gold (WOG) file. Ninety-six simulated root canals were equally distributed into XPS and WOG systems to be shaped by eight files each. Files were assessed under a stereomicroscope prior to canal shaping to detect deformation if any. e canals were shaped at 35 ± 1°C using the X-Smart Plus motor. Images of the canals were obtained before and after instrumentation using a stereomicroscope to measure the amount of removed resin from both the inner and outer curvature sides at apex (0 mm) and 3 mm and 6 mm from the apex. e shaping time was calculated. e data were statistically analyzed by the independent t-test at 5% significance level. e XPS and WOG systems shaped the canals in 37.0 ± 9.5 and 62.6 ± 11.3 seconds (P < 0.05), respectively. At the apex level, the amount of resin removal in both sides did not show a significant difference between the tested groups (P > 0.05). At 3 mm and 6 mm levels, the WOG removed more resin than XPS at both sides (P < 0.05). In XPS, deformation was observed in four files: one file after the first use, one file after the fourth use, and two files after the sixth use. In WOG, two files were deformed: one file after the fifth use and one file after the sixth use. One XPS file was fractured after the sixth use. In short, XPS and WOG files can be used in shaping severely curved canals as they showed the ability to maintain the original shape with minimal transportation. Both file systems showed signs of deformation after use with a lower number of deformed files observed in WOG throughout the experiment.

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Section: Discussionsupporting

confidence: 89%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Shaping Ability of XP Endo Shaper File in Curved Root Canal Models

Alfadley

Alrajhi

Alissa

et al. 2020

International Journal of Dentistry

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“…27 Although previous study reported the superiority of WaveOne Gold over RECIPROC Blue in canal centering and transportation, 26 another study showed that no difference was found in canal transportation between HyFlex EDM and WaveOne Gold; these discrepancies in the results may be attributed to the study design where they used simulated resin canals which is not the case in this study where natural canals were used and analyzed with the highly accurate micro-CT. 31 It has been reported that WaveOne Gold showed a better centering ability than One Shape which is evident in this study. 32 Previous studies showed similar performance for WaveOne Gold. 25,33,34 It was found that all the four groups showed a centering ratio more than one at the apical level indicating the tendency of all the instruments used to prepare more of the outer surface of the canal curvature rather than the inner surface.…”

Section: Discussionmentioning

confidence: 88%

Comparison of Shaping Ability of Different Single-File Systems Using Microcomputed Tomography

2020

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Objectives To evaluate the shaping ability of four different single-file systems using micro-computed tomography (micro-CT). Materials and Methods Eighty mesiobuccal and mesiolingual canals of permanent mandibular molars were randomly assigned to four groups according to the file used; WaveOne Gold, RECIPROC Blue, HyFlex EDM, and One Shape (n = 20). The samples were scanned using micro-CT for the preinstrumentation record; then the canals were instrumented and scanned for the postinstrumentation records. Statistical Analysis The data were then analyzed statistically using one-way analysis of variance (ANOVA) with the level of significance set at α = 0.05. Results The results of canal centering ratio and canal transportation showed that no significant difference was found among the four file groups at the middle and the coronal levels. However, a significant difference was found at the apical level (p < 0.05), where WaveOne Gold showed the best centering ratio and the least amount of canal transportation. The change in the canal volume was significant at the coronal level (p < 0.05), whereas the change in the canal volume was higher for the HyFlex EDM group than the other groups. No significant difference was found between the other groups at the apical level, middle level, or in the total percentage of canal volume. Conclusion WaveOne Gold produced a more centralized canal preparation with a lesser amount of transportation at the apical level. HyFlex EDM showed the highest canal volumetric change at the coronal level. The interim design of the endodontic files has a high impact on the behavior of the file inside the root canal.

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“…Having removed the fractured instrument, a size 30 K-File was fitted loose in the root canal up to working length as confirmed radiographically and with an electronic apex locator (ProPex, Dentsply, Sirona). According to the file selection criteria outlined by Van der Vyver et al (2019) 38 for WaveOne Gold files, a size large WaveOne Gold File (45/05) was selected for canal preparation.…”

Section: Several Authors Have Highlighted Additional Causesmentioning

confidence: 99%