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13.09.2018 | Original Article

Efficacy of a thermally treated single file compared with rotary systems in endodontic retreatment of curved canals: a micro-CT study

verfasst von: Débora Delai, Alexander Pompermayer Jardine, Letícia Boldrin Mestieri, Daiana Boijink, Vania Regina Camargo Fontanella, Fabiana Soares Grecca, Patrícia Maria Poli Kopper

Erschienen in: Clinical Oral Investigations | Ausgabe 4/2019

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Abstract

Objectives

This study aimed to compare WaveOne Gold with ProTaper and RaCe systems regarding remaining filling material, apical transportation (AT), and working time (WT) after (i) filling removal and (ii) shaping of curved canals.

Methods

Thirty mesiobuccal canals of maxillary molars were prepared and filled. After 30 days, they were randomly assigned into three groups (n = 10), according to the instruments used for filling removal and shaping, respectively: WOG—WaveOne Gold Primary and Medium; PTG—ProTaper Retreatment and ProTaper Next; RCG—D-RaCe and RaCe. Micro-CT analysis assessed the residual filling material and AT. WT was recorded. Data were statistically analyzed (α = .05).

Results

There was no significant difference between groups in the amount of filling material at any evaluated moment (P > .05). All groups presented low AT values. The WT was similar in all groups in filling removal (P > .05), and in shaping step WOG was faster than PTG and RCG (P < .05).

Conclusions

Neither system could completely remove the filling material. The instruments evaluated were safe and the reciprocating system was faster than the rotary systems in shaping the canals.

Clinical relevance

This study provided consistent information on filling material removal capacity of WaveOne Gold. Considering that all tested systems were safe, WaveOne Gold may be an alternative with cost-effectiveness and shorter learning curve for endodontic retreatment.

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Titel: Efficacy of a thermally treated single file compared with rotary systems in endodontic retreatment of curved canals: a micro-CT study
verfasst von: Débora Delai
Alexander Pompermayer Jardine
Letícia Boldrin Mestieri
Daiana Boijink
Vania Regina Camargo Fontanella
Fabiana Soares Grecca
Patrícia Maria Poli Kopper
Publikationsdatum: 13.09.2018
Verlag: Springer Berlin Heidelberg
Erschienen in: Clinical Oral Investigations / Ausgabe 4/2019
Print ISSN: 1432-6981
Elektronische ISSN: 1436-3771
DOI: https://doi.org/10.1007/s00784-018-2624-6

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Efficacy of a thermally treated single file compared with rotary systems in endodontic retreatment of curved canals: a micro-CT study

Abstract

Objectives

Methods

Results

Conclusions

Clinical relevance

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Abstract

Objectives

Methods

Results

Conclusions

Clinical relevance

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