Influence of Cervical and Apical Enlargement Associated with the WaveOne System on the Transportation and Centralization of Endodontic Preparations

Amaral, Rodrigo Otavio Jatahy Ferreira do; Leonardi, Denise Piotto; Gabardo, Marilisa Carneiro Leão; Coelho, Beatriz Serrato; Oliveira, Kauhanna Vianna de; Baratto‐Filho, Flares

doi:10.1016/j.joen.2015.12.005

Cited by 20 publications

(23 citation statements)

References 34 publications

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“…Mechanical instrumentation includes both enlargement and shaping, and it is important to enhance the effectiveness of irrigants and antibacterial medicaments in eradicating bacteria and eliminating bacterial by-products [2], thus creating adequate space for three-dimensional obturation [2, 3]. Nickel-titanium (NiTi) rotary files were developed in the 1980s and have been associated with shorter instrumentation time and better cutting efficiency when compared with hand instruments [2]. Conversely, NiTi rotary files have larger tapers and can therefore generate increased friction and stress when compared with hand files [4-6].…”

Section: Introductionmentioning

confidence: 99%

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Root Canal Transportation and Centering Ability of Nickel-Titanium Rotary Instruments in Mandibular Premolars Assessed Using Cone-Beam Computed Tomography

Mamede-Neto¹,

Borges²,

Guedes³

et al. 2017

TODENTJ

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Introduction:The aim of this study was to evaluate, using cone-beam computed tomography (CBCT), transportation and centralization of different nickel-titanium (NiTi) rotary instruments.Methods: One hundred and twenty eight mandibular premolars were selected and instrumented using the following brands of NiTi files: WaveOne, WaveOne Gold, Reciproc, ProTaper Next, ProTaper Gold, Mtwo, BioRaCe and RaCe. CBCT imaging was performed before and after root canal preparation to obtain measurements of mesial and distal dentin walls and calculations of root canal transportation and centralization. A normal distribution of data was confirmed by the Kolmogorov-Smirnov and Levene tests, and results were assessed using the Kruskal-Wallis test. Statistical significance was set at 5%. Results:ProTaper Gold produced the lowest canal transportation values, and RaCe, the highest. ProTaper Gold files also showed the highest values for centering ability, whereas BioRaCe showed the lowest. No significant differences were found across the different instruments in terms of canal transportation and centering ability (P > 0.05).Conclusion: Based on the methodology employed, all instruments used for root canal preparation of mandibular premolars performed similarly with regard to canal transportation and centering ability.

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Section: Introductionmentioning

confidence: 99%

“…Apical enlargement is beneficial to reduce the extrusion of debris and the presence of remaining bacteria [2, 22]. Conversely, a smaller canal size can reduce susceptibility to tooth fracture [26, 27].…”

Section: Introductionmentioning

confidence: 99%

Root Canal Transportation and Centering Ability of Nickel-Titanium Rotary Instruments in Mandibular Premolars Assessed Using Cone-Beam Computed Tomography

Mamede-Neto¹,

Borges²,

Guedes³

et al. 2017

TODENTJ

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“…The clinical validation of any motion is a combination of safety and efficiency (9,(12)(13)(14)23,25,(32)(33)(34). Within the limitations of this study, it can be concluded that the new OGP and OTR motions introduced by the TriAuto ZX2 motor can significantly improve the fatigue life span and the predictability in fatigue life of the tested instruments compared to continuous rotation, thus meeting the safety criteria.…”

Section: Discussionmentioning

confidence: 82%

Classification and cyclic fatigue evaluation of new kinematics for endodontic instruments

et al. 2018

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This study evaluated the effect of new motions of the motor TriAuto ZX2 on the cyclic fatigue of endodontic instruments. Vortex Blue 35.06 instruments were divided into four groups (n = 10) and tested for fatigue in a curved artificial canal (90° and 2 mm radius) using the following motions: continuous rotation (CR), Optimum Torque Reverse (OTR) set at 180° and the Optimum Glide Path (OGP), which was tested at 90° and 240°. The time to fracture (TTF) and the lengths of the fractured fragments were recorded. The mean TTF was significantly different among the groups (anova, P < 0.05): OGP 90° (213.39 ± 27.45), OTR 180° (121.24 ± 17.03), OGP 240° (45.24 ± 5.61) and CR (8.43 ± 1.27). Weibull analysis confirmed the shortest life expectancy for CR and the longest survival for OGP at 90°. The resistance to fatigue was affected by motions and pre-set angles. The proprietary movements that are currently available for endodontic instruments were classified according to their kinematics.

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“…The sample size (n) was based on the previous studies published in the literature. 2,9,17 The teeth had been previously radiographed and were selected based on the presentation criteria of curvature between 10 and 30 degrees in the buccal roots, as determined by the Schneider method. 18 In the interest of the research, teeth with curvature greater than 30 or less than 10 degrees, incomplete root formation, internal or external resorption, previous endodontic treatment, and decayed tissue were discarded.…”

Section: Specimen Selectionmentioning

confidence: 99%

“…The endodontic glide path is used for the exploration and pre-enlargement of the root canal to minimize errors in biomechanical preparation, such as canal transport and deviations. [1][2][3] This procedure can be conducted with instruments made of nickel-titanium (NiTi) alloys with different heat treatments, designs, and conicities. Pre-enlargement provided by the glide path allows the root canal preparation instruments to work with less torsional stress, reducing the risk of instrument fracture.…”

Section: Introductionmentioning

confidence: 99%

Comparison of Canal Transportation and Centering Ability of ProGlider and WaveOne Gold Glider in Curved Canals

et al. 2020

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Objectives The aim of this study was to compare the volume variation and maintenance of the root canal position when using the ProGlider 16.02 (PG) and the WaveOne Gold Glider 15.02 (WOGG) file systems for glide path preparation. Materials and Methods Twenty-four moderately curved mesiobuccal canals of maxil-lary first molars were selected and randomly divided into two groups: PG and WOGG. The selected teeth were scanned using microtomography before and after root canal preparation to assess centralization and linear transport at 1, 3, 5, and 7 mm from the apical foramen. Statistical Analysis The data were analyzed with the Mann–Whitney U test. The level of significance was 5%. Results There were no significant differences in volume variation or root canal transport (p > 0.05). There was a significant difference in the centralization of the root canal at 3 mm from the foramen (p < 0.05). Conclusions WOGG and PG instruments presented similar results regarding the root canal volume increase and transport. WOGG caused higher decentralization at 3 mm from the apical foramen.

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Influence of Cervical and Apical Enlargement Associated with the WaveOne System on the Transportation and Centralization of Endodontic Preparations

Cited by 20 publications

References 34 publications

Root Canal Transportation and Centering Ability of Nickel-Titanium Rotary Instruments in Mandibular Premolars Assessed Using Cone-Beam Computed Tomography

Root Canal Transportation and Centering Ability of Nickel-Titanium Rotary Instruments in Mandibular Premolars Assessed Using Cone-Beam Computed Tomography

Classification and cyclic fatigue evaluation of new kinematics for endodontic instruments

Comparison of Canal Transportation and Centering Ability of ProGlider and WaveOne Gold Glider in Curved Canals

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