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Apical extrusion of debris during the preparation of oval root canals: a comparative study between a full-sequence SAF system and a rotary file system supplemented by XP-endo finisher file

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Abstract

Objectives

The purpose of this study was to assess the amount of apically extruded debris during the preparation of oval canals with either a rotary file system supplemented by the XP-endo Finisher file or a full-sequence self-adjusting file (SAF) system.

Materials and methods

Sixty mandibular incisors were randomly assigned to two groups: group A: stage 1—glide path preparation with Pre-SAF instruments. Stage 2—cleaning and shaping with SAF. Group B: stage 1—glide path preparation with ProGlider file. Stage 2—cleaning and shaping with ProTaper Next system. Stage 3—Final cleaning with XP-endo Finisher file. The debris extruded during each of the stages was collected, and the debris weights were compared between the groups and between the stages within the groups using t tests with a significance level set at P < 0.05.

Results

The complete procedure for group B resulted in significantly more extruded debris compared to group A. There was no significant difference between the stages in group A, while there was a significant difference between stage 2 and stages 1 and 3 in group B, but no significant difference between stages 1 and 3.

Conclusions

Both instrumentation protocols resulted in extruded debris. Rotary file followed by XP-endo Finisher file extruded significantly more debris than a full-sequence SAF system. Each stage, in either procedure, had its own contribution to the extrusion of debris.

Clinical relevance

Final preparation with XP-endo Finisher file contributes to the total amount of extruded debris, but the clinical relevance of the relative difference in the amount of apically extruded debris remains unclear.

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Authors and Affiliations

  1. Department of Endodontology, The Goldschleger School of Dental Medicine, Tel Aviv University, Tel Aviv, Israel

    Anda Kfir, Rotem Moza-Levi, Moran Herteanu, Amir Weissman & Ronald Wigler

Authors
  1. Anda Kfir
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  2. Rotem Moza-Levi
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  3. Moran Herteanu
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  4. Amir Weissman
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  5. Ronald Wigler
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Correspondence to Ronald Wigler.

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The authors declare that they have no conflict of interest.

Funding

The work was supported by the Goldschleger School of Dental Medicine grants, Tel Aviv University, Tel Aviv, Israel.

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This article does not contain any studies with human participants or animals performed by any of the authors.

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For this type of study, formal consent is not required.

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Kfir, A., Moza-Levi, R., Herteanu, M. et al. Apical extrusion of debris during the preparation of oval root canals: a comparative study between a full-sequence SAF system and a rotary file system supplemented by XP-endo finisher file. Clin Oral Invest 22, 707–713 (2018). https://doi.org/10.1007/s00784-017-2144-9

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  • DOI: https://doi.org/10.1007/s00784-017-2144-9

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