Evaluating Transportation by Comparing Several uses of Rotary Endodontic Files

Elemam, Ranya Faraj; Capelas, José António; Vaz, Mário; Viriato, Nuno; Pereira, Melissa L; Azevedo, Álvaro; West, John D.

doi:10.5005/jp-journals-10024-1783

Cited by 2 publications

(2 citation statements)

References 28 publications

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“…Because root canal instruments are tapered and therefore stiffer in direction of the shaft, more transportation will result in cases with more coronally located curvatures. In the literature, many studies can be found in which root canal instruments were tested in simulated root canals [ 1 , 7 – 9 , 11 , 14 – 16 , 18 ]. Clear resin blocks are therefore a widely used method that is thought to be highly reproducible.…”

Section: Discussionmentioning

confidence: 99%

“…There is no standard protocol to compare the shaping ability of different root canal instruments in a reproducible way, even though there are plenty of publications describing different in-vitro methods to evaluate such instruments [ 1 – 14 ]. These publications can be divided into publications performed on extracted teeth [ 2 – 6 , 10 , 12 , 13 ] or on simulated root canals in resin blocks [ 1 , 7 – 9 , 11 , 14 , 15 ]. While some researchers advocated root canals in extracted teeth for the more realistic situation with natural dentine properties [ 16 ], others advocated the advantage of high standardization of simulated artificial root canals [ 15 , 16 ].…”

Section: Introductionmentioning

confidence: 99%

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Shaping ability of four root canal instrumentation systems in simulated 3D-printed root canal models

et al. 2018

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IntroductionThe aim of this study was to compare the shaping ability of four root canal preparation systems in newly developed 3D-printed root canal models.Materials and methodsFor this study, 1080 3D-printed acrylic resin blocks with nine different root canal configurations were produced. They were prepared with Reciproc R25 (#25), F6 SkyTaper (#25 and #30) F360 (#25 and #35) and One Shape (#25) (N = 30 per system). Pre- and post-instrumentation images were superimposed for evaluation of the centering ratio of the different systems. Ledges, instrument fractures and preparation times were also recorded. Analysis of variance (ANOVA) and post-hoc Tukey tests were conducted, comparing the mean canal centering ratios and the mean preparation times.ResultsThere were significant differences between all systems regarding the centering ratios in the different root canal configurations (ANOVA p < 0.001). The root canal configuration had considerable effect on the centering ratio of the instruments. The best overall mean centering ratios were achieved with F6 SkyTaper #25 instruments especially in canal configurations with big curvature angles and radii, while F360 #35 was least centered especially in canals with small curvature angles and radii. Most ledges occurred with OneShape, while it was the significantly (p < 0.001) fastest preparation system (86.7 s (SD 13.53)) and Reciproc the significantly (p < 0.001) slowest (103.0 s (SD 20.67)).Conclusion3D-printed root canals are suitable to produce challenging canal configurations and to investigate the limitations of root canal instruments. We found that all instruments caused canal transportations. However, F6 SkyTaper #25 files had better overall centering ratios than the other instruments. In canal configurations with small curvature radii, the centering ratio of some instruments is low and the probability for ledges is increased.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Shaping ability of four root canal instrumentation systems in simulated 3D-printed root canal models

et al. 2018

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Comparison of endodontic disinfection of primary teeth root canals using rotary and reciprocating system: An in vitro study

Fonseca

Cangussu

Oliveira

et al. 2020

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Aim: This experimental study in vitro aimed to compare the disinfection of the primary teeth root canals system using the rotary and reciprocating file system. Methodology: Forty-eight root canals from twenty-four primary molar teeth were contaminated with the standard strain of Enterococcus faecalis and randomically splitted into 4 groups (n=12). The Group PN comprised the root canals prepared with the ProTaperTM Next rotary system. The Group WOG was defined by the usage of WaveOneTM Gold reciprocating system. The files from both systems were thermo mechanical processed. The Group PU used the ProTaperTM Universal system, with no thermic treatment, and the Group C (negative control) received no treatment. Samples from the root canals were collected with sterile paper points before and after its preparation, diluted and distributed in plates with Brain Heart Infusion (BHI) agar. The bacterial colonies were counted and the results were statistic analyzed by Wilcoxon and Kruskal-Wallis (Dunn) tests. Results: There was significant bacterial reduction using the systems (p>0,01). However, there was no significant difference among them (p<0,05) (PN=3.38; WOG=3.85; PU=3.26). Conclusion: Both systems (rotary and reciprocating) provide disinfectionon the primary molar teeth root canals system.

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Evaluating Transportation by Comparing Several uses of Rotary Endodontic Files

Abstract: ProTaper Next nickel-titanium (NiTi) file system is a safe instrument that respects the canal shape, allows practitioners to treat difficult cases with good results, and low risk of separation.

Cited by 2 publications

References 28 publications

Shaping ability of four root canal instrumentation systems in simulated 3D-printed root canal models

Shaping ability of four root canal instrumentation systems in simulated 3D-printed root canal models

Comparison of endodontic disinfection of primary teeth root canals using rotary and reciprocating system: An in vitro study

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