In Vitro Comparison of Cyclic Fatigue Resistance of ProTaper, WaveOne, and Twisted Files

Castelló-Escrivá, Ricardo; Alegre-Domingo, Teresa; Faus‐Matoses, Vicente; Román-Richon, Sophie; Faus-Llácer, Vicente

doi:10.1016/j.joen.2012.07.010

Cited by 89 publications

(93 citation statements)

References 24 publications

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“…Intragroup evaluation revealed differences only within the Reciproc group between 2 mm and 4 mm (p=0.0218), with more defects in this latter group of sections. None of evaluated groups presented fractures despite treatment, which may be attributed to the reciprocating movement minimizing torsional and flexural stresses [16][17][18][19][20][21]. However, a previous study found that the alloy from which the instrument is manufactured was a more important factor in determining the damaging potential of single-file instruments than the motion of the instrument.…”

Section: Brazilian Research Inmentioning

confidence: 87%

Prevalence of Dentinal Defects after Root Canal Preparations in Molars with Reciproc and WaveOne Systems

Amaral

Santos

Salazar-Silva

et al. 2016

Pesqui. bras. odontopediatria clín. integr.

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Objective: To evaluate the prevalence of dentin defects, including partial and complete cracks and fractures, after root canal preparation in molars with Reciproc and WaveOne reciprocating instruments. Material and Methods: Fifty mandibular first and second molars with mature apices were selected to endodontic in vitro instrumentation. Ten teeth were unprepared and served as the control, and the remaining forty teeth were divided into two groups, being twenty corresponding to each reciprocating system. Reciproc and WaveOne systems were used in a reciprocating working motion, under the same conditions, to prepare the two mesial canals. Roots were then sectioned 2, 4 and 6 mm from the apex, and the cut surface was observed under a microscope using 20-fold magnification and checked for the presence of fractures and incomplete cracks. Results: none of the evaluated groups presented fractures, and the control group showed no incomplete cracks. Overall evaluation showed statistical differences between these two groups and the control group (p=0.017) for the prevalence of incomplete cracks, but no significant differences were obtained between Reciproc and WaveOne groups (p>0.05). Reciproc group presented more incomplete cracks on 4-mm sections compared with the control group on the same section (p=0.0326). Conclusion: Root canal preparation with both reciprocating instruments resulted in incomplete cracks, but not fractures. At the level of 4 mm from the apex of the canals, the Reciproc system produced significantly more incomplete cracks. Considering both systems, WaveOne utilization resulted in lesser structural alterations on dentin considering the middle portion of the roots.

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Section: Brazilian Research Inmentioning

confidence: 87%

Prevalence of Dentinal Defects after Root Canal Preparations in Molars with Reciproc and WaveOne Systems

Amaral

Santos

Salazar-Silva

et al. 2016

Pesqui. bras. odontopediatria clín. integr.

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“…Results of this study rejected the null hypothesis, since WO showed a significantly higher cyclic fatigue resistance than OS under the conditions of the present study. Movement kinematic (continuous or reciprocating motion) is one factor that might influence the resistance of rotary NiTi instruments to cyclic fatigue 13) . In the present study, the higher cyclic fatigue resistance of WO was attributed to the reciprocating motion compared with the continuous rotation of OS.…”

Section: Discussionmentioning

confidence: 99%

“…WO instruments have a modified convex triangular crosssection at the tip and a convex triangular cross-section in the middle and coronal portions of the instrument 12) . Additionally, WO is manufactured using M-Wire NiTi to enhance its flexibility and fatigue resistance 13,14) . OneShape (OS) (Micro Mega, Besançon, France) is another rotary NiTi single-instrument system that was introduced to the dental market.…”

Section: Introductionmentioning

confidence: 99%

Cyclic fatigue resistance of OneShape and WaveOne instruments using different angles of curvature

Elsaka

Elnaghy

2015

Dental Materials Journal

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This study compared the cyclic fatigue resistance of OneShape (OS) instrument which used continuous rotation with WaveOne (WO) instrument which used reciprocating motion. OS size 25, 0.06 taper and WO primary size 25, 0.08 taper were used in simulated canals with 45°, 60°, and 90° angles of curvature until fracture. The number of cycles to fracture (NCF) was recorded to evaluate cyclic fatigue resistance. Data were statistically analyzed using two-way analysis of variance and Tukey's HSD test. Weibull analysis was performed on NCF data. WO had a significantly higher NCF than OS for all angles of curvature (p<0.05). According to Weibull distribution, WO instrument was predicted to have a higher number of cycles to survive than OS instrument. WO instrument which used the reciprocating motion had a greater resistance to cyclic fatigue than OS which used continuous rotation movement.

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“…However, the manufacturers have recently introduced into the market new instruments designed with a special alloy to improve resistance to fracture. The special alloy improved flexibility and fatigue resistance (Gambarini et al, 2010;Castelló-Escrivá et al, 2012).…”

Section: Discussionmentioning

confidence: 99%

WaveOne: A Simple and Safe Way to Perform an Endodontic Treatment

Aracena

Betancourt

Borie

et al. 2014

Int. J. Odontostomat.

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Variations in the root canal's anatomy play an important role on endodontic therapy success, primarily in teeth with pulp necrosis. Traditionally, the preparation of root canals was performed with the use of stainless steel hand files; but over the years, new flexible instruments were introduced to prevent or minimize iatrogenic errors in shaping the root canal system. In most of recent publications, alternating rotation movements have been proposed as an alternative to continuous rotation in order to reduce the risk of fracture of the instrument and the root canal deformation. The aim of this article was to report a clinical case describing the simple way to perform the endodontic treatment of a maxillary premolar with three root canals, with the WaveOne reciprocating system.

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In Vitro Comparison of Cyclic Fatigue Resistance of ProTaper, WaveOne, and Twisted Files

Cited by 89 publications

References 24 publications

Prevalence of Dentinal Defects after Root Canal Preparations in Molars with Reciproc and WaveOne Systems

Prevalence of Dentinal Defects after Root Canal Preparations in Molars with Reciproc and WaveOne Systems

Cyclic fatigue resistance of OneShape and WaveOne instruments using different angles of curvature

WaveOne: A Simple and Safe Way to Perform an Endodontic Treatment

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