Cutting Efficiency of Twisted versus Machined Nickel-Titanium Endodontic Files

Fayyad, Dalia Mukhtar; Elgendy, Abeer

doi:10.1016/j.joen.2011.03.036

Cited by 47 publications

(47 citation statements)

References 32 publications

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“…The results of the present study regarding the performance of TF instrument in modified technique was consistent with previous studies (7)(8)(9)27) , which reported that TF system cut dentin efficiently with more uniform cutting and greater tendency to preserve the canal curvature compared to instruments manufactured by grinding.…”

Section: Discussionsupporting

confidence: 92%

“…Moreover, the files enter the root canal more freely and only part of the file works within the root canal resulting in minor friction with less incidence of apical transportation (29) . Also, the superior flexibility of the TF instruments resulting from R-phase heat treatment might improve its effect at these levels (5,7) .…”

Section: Discussionmentioning

confidence: 99%

“…Moreover, many authors reported that the TF instruments maintain the original root anatomy in curved canals and were able of producing centered preparations (7)(8)(9)27) .…”

Section: Discussionmentioning

confidence: 99%

“…The results revealed that TF instruments produce significantly less transportation and remain more centered around the original canal. In a subsequent study on extracted mandibular molars with angles of curvature between 25 and 35, TF instruments showed a greater tendency to preserve the canal curvature than K3 instruments (7)(8)(9) .…”

Section: Introductionmentioning

confidence: 93%

“…It has a variable pitch that minimizes the "screw-in" effect and allows debris to be effectively channeled out of the canal (5) .Twisted File has been reported to be the most flexible instrument, with a significant improvement in flexibility ranging from 100% to 250%, which cut dentin efficiently with more uniform cutting, compared to machined nickeltitanium endodontic files (6,7) . Canal transportation and centering ratio has been evaluated in root canals with severe curvature and short radius using (TF), Pathfile-ProTaper (PP) and conventional stainless steel K-files.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Comparison of Root Canal Transportation and Centering Ability Prepared with Two Single Files Rotary Systems using Cone Beam Computed Tomography Scanning (Ex vivo study)

2017

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Section: Discussionsupporting

confidence: 92%

Section: Discussionmentioning

confidence: 99%

“…Moreover, many authors reported that the TF instruments maintain the original root anatomy in curved canals and were able of producing centered preparations (7)(8)(9)27) .…”

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 93%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Comparison of Root Canal Transportation and Centering Ability Prepared with Two Single Files Rotary Systems using Cone Beam Computed Tomography Scanning (Ex vivo study)

2017

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Clinical efficiency and reusability of the reciprocating nickel–titanium instruments according to the root canal anatomy

et al. 2013

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The application of the single-file technique using the reciprocating motion is gaining concern in root canal preparation. The purpose of this research is to compare the efficiency of the reciprocating motion-employing files (RECIPROC and WaveOne) by measuring the working time for complete canal shaping, and to evaluate their reusability under scanning examinations. One hundred curved root canals of the extracted molars were used. The working length was determined and the glide path was confirmed using a #15 K-file. Canals shaping was completed to the length either with RECIPROC R25 file (n = 50), or with WaveOne Primary file (n = 50). The time taken for the file to reach the working length was also measured. Each file was repeatedly used in a maximum of 10 canals for comparing the change of the efficiency (shaping time) according to the working length, canal curvature, and number of file re-use. The deformations or surface defects of the files after the in vitro use were observed using a scanning electron microscope (SEM). There was no difference under the SEM between the 2 file groups with no initiation of micro-cracks until they were re-used up to 5 canals. WaveOne Primary file showed significantly shorter working time than RECIPROC R25 (p < 0.05). There was a statistically significant correlation between the working time and three variables. As the working length and the curvature of the canal increased, the shaping time was increased in both file systems. Reusability of these reciprocating instruments might be maximum 5 canals with minimal surface deformations.

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Synchrotron light-based μCT to analyse the presence of dentinal microcracks post-rotary and reciprocating NiTi instrumentation

et al. 2014

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Cutting Efficiency of Twisted versus Machined Nickel-Titanium Endodontic Files

Cited by 47 publications

References 32 publications

Comparison of Root Canal Transportation and Centering Ability Prepared with Two Single Files Rotary Systems using Cone Beam Computed Tomography Scanning (Ex vivo study)

Comparison of Root Canal Transportation and Centering Ability Prepared with Two Single Files Rotary Systems using Cone Beam Computed Tomography Scanning (Ex vivo study)

Clinical efficiency and reusability of the reciprocating nickel–titanium instruments according to the root canal anatomy

Synchrotron light-based μCT to analyse the presence of dentinal microcracks post-rotary and reciprocating NiTi instrumentation

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