Shaping ability of two nickel–titanium instruments activated by continuous rotation or adaptive motion: a micro-computed tomography study

Pedullà, Eugenio; Plotino, Gianluca; Grande, Nicola M.; Avarotti, G.; Gambarini, Gianluca; Rapisarda, E.; Mannocci, Francesco

doi:10.1007/s00784-016-1732-4

Cited by 42 publications

(46 citation statements)

References 41 publications

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“…[17] For this reason, the adaptive motion might not influence the shaping abilities TF NiTi files. Besides that, Pedullà et al [7] reported that adaptive motion decreased the amount of canal transportation that is made by Mtwo (VDW) and TF NiTi files. We believe that this difference from the present study was originated from the use of natural teeth and the difference between the examination methods.…”

Section: Discussionmentioning

confidence: 99%

“…[14] In studies, where the NiTi files' shaping abilities were examined, different NiTi rotary file systems were analyzed using continuous rotation movement, reciprocation movement, and adaptive motion. [4,7,8,15] But, only in 2 of these studies, the effect of adaptive motion on NiTi files shaping ability was examined. [7,8] For this reason, in the present study it was aimed to examine the effects of adaptive motion on TF NiTi rotary files shaping ability in Sshaped artificial canals.…”

Section: Discussionmentioning

confidence: 99%

“…[4,7,8,15] But, only in 2 of these studies, the effect of adaptive motion on NiTi files shaping ability was examined. [7,8] For this reason, in the present study it was aimed to examine the effects of adaptive motion on TF NiTi rotary files shaping ability in Sshaped artificial canals.…”

Section: Discussionmentioning

confidence: 99%

“…[7,8] Pedullà et al [7] analyzed the effects of adaptive motion on the efficiency of TF NiTi files in shaping the mandibular molar teeth having 25°-35° of curvature by using computed tomography. In literature, there is no study examining the effects of adaptive motion on shaping S-shaped artificial canals.…”

mentioning

confidence: 99%

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Evaluation of Effect of Adaptive Motion on Shaping Ability of Twisted File Nickel-Titanium Files in Simulated S-Shaped Canals

Özyürek¹

2017

Turk Endod J

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

mentioning

confidence: 99%

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Evaluation of Effect of Adaptive Motion on Shaping Ability of Twisted File Nickel-Titanium Files in Simulated S-Shaped Canals

Özyürek¹

2017

Turk Endod J

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“…Several studies have investigated the shaping ability in resin blocks, but the problem of these blocks is their distortion ( 26 , 27 ). For this reason, the extracted human teeth were used in this study, likewise in Pedullà et al ( 28 ). …”

Section: Discussionmentioning

confidence: 99%

Comparison of Shaping Ability of 10 Rotary and Reciprocating Systems: an In Vitro Study with AutoCAD

Rubio¹,

Zarzosa²,

Pallarés³

2017

Acta Stomatol Croat

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ObjectiveThe aim of this study was to compare the cutting are, root canal anatomy preservation and non-instrumented areas of F360®, F6-SkyTaper®, Hyflex-EDM®, iRACE®, Neoniti®, O.Shape®, P.Next®, Reciproc®, Revo-S® and Wave-One-Gold® size 25 files.Materials and Methods300 teeth with a single straight root and a circular or elliptical root canal were divided into 10 groups (1-F360®, 2- F6-SkyTaper®, 3-Hyflex-EDM®, 4-iRACE®, 5-Neoniti®, 6-O.Shape®, 7-P.Next®, 8-Reciproc®, 9-Revo-S® and 10-Wave-One-Gold®) cut into 3 cross sections using an ultrafine cutting disc. They were photographed under a stereo microscope and preinstrumentation analyses were made before rebuilding the teeth with# 10 K- File and epoxy glue. A glide path was created with #10 and #15 K files and each group was instrumented using rotary or reciprocating systems. Cutting areas, root canal anatomy preservation and non-instrumented areas were analyzed using the AutoCAD 2015 Levene's test, the Welch´s test, and the Games-Howell´s test. The Pearson’s chi-squared test was used for statistical analysis.ResultsLevene's test showed no equality of variances (P<0.05), therefore Welch´s and Games-Howell's tests were applied to cutting areas, showing significant differences in all thirds and overall (P<0.05). No differences in root canal anatomy preservation were observed (P>0.05). In non-instrumented areas, significant differences were found (P<0.05) in middle third being better in Reciproc®, Neoniti® and WaveOneGold®, and in apical thirds being higher P.Next®, Reciproc®, HyflexEDM®, Neoniti® and WaveOneGold®.ConclusionsIn cutting area, P.Next® and Reciproc® were superior in coronal third, Neoniti® and Hyflex EDM® medially and apically and Neoniti® and Reciproc® overall. Regarding the root canal anatomy preservation, all systems were similar. For non-instrumented areas, all systems achieved similar results coronally, but Reciproc®, Neoniti® and Wave One Gold® were superior in middle third and P.Next®, Reciproc®, Hyflex EDM®, Neoniti® and Wave One Gold® were superior in apically.

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Shaping ability of Procodile and R6 Reziflow nickel‐titanium reciprocating instruments in curved mesial root canals of mandibular molars: A MicroCT study

Generali

Checchi

Borghi

et al. 2023

Microscopy Res & Technique

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To compare the shaping ability of Procodile and R6 Reziflow instruments used in reciprocating motion in severely curved root canals, assessed with micro‐computed tomography (μCT). Fourteen extracted human mandibular first molars were randomly assigned to two instrumentation techniques (n = 14 mesial root canals): Procodile or R6 Reziflow. For both groups, root canals were prepared to the working length up to a size 25, .06 taper. Molars were virtually divided into apical, middle and coronal thirds and μCT was used to scan all samples pre‐ and post‐root canal. Canal transportation, centring ability, volume, surface area and unprepared area were evaluated. Geometrical parameter changes were compared with preoperative values (one‐way analyses of variance and Tukey multiple comparison post‐hoc test) between groups and Student t‐test within groups (α = 0.05) Significantly less transportation was observed associated with the Procodile technique in the molar's coronal third compared to the R6 Reziflow technique (p < .05). No significant differences in root canal centring ability, volume, surface area and unprepared area were observed. Procodile showed a lower percentage increase of surface area compared to R6 Reziflow (p < .05). The Procodile and R6 Reziflow techniques applied to first molar root canal performed similarly except for the less transportation observed in the coronal third using Procodile.Research HighlightsMicroCT analysis of canal geometry before and after instrumentation revealed that Procodile and R6 Reziflow showed a similar shaping ability to shape curved root canals without substantially modifications of the original tooth anatomy.

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Shaping ability of two nickel–titanium instruments activated by continuous rotation or adaptive motion: a micro-computed tomography study

Cited by 42 publications

References 41 publications

Evaluation of Effect of Adaptive Motion on Shaping Ability of Twisted File Nickel-Titanium Files in Simulated S-Shaped Canals

Evaluation of Effect of Adaptive Motion on Shaping Ability of Twisted File Nickel-Titanium Files in Simulated S-Shaped Canals

Comparison of Shaping Ability of 10 Rotary and Reciprocating Systems: an In Vitro Study with AutoCAD

Shaping ability of Procodile and R6 Reziflow nickel‐titanium reciprocating instruments in curved mesial root canals of mandibular molars: A MicroCT study

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