Evidence map›Paper›PMID 39750519›Full record

ArticleEuropean journal of dentistry2025

Effect of Apical Preparation Size and Preparation Taper on Smear Layer Removal Using Two Different Irrigation Needles: A Scanning Electron Microscopy Study.

Rania Lebbos, Naji Kharouf, Deepak Mehta, Jamal Jabr, Cynthia Kamel, Roula El Hachem, Youssef Haikel, Marc Krikor Kaloustian

Abstract read
In one paragraph

Article in European journal of dentistry, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

3 citing papers in PubMed.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

8 authors.

Rania LebbosDepartment of Endodontics, Faculty of Dental Medicine, Saint Joseph University of Beirut, Beirut, Lebanon.
Naji KharoufDepartment of Biomaterials and Bioengineering, INSERM UMR_S 1121, Strasbourg University, Strasbourg, France.ORCID 0000-0001-6768-138X
Deepak MehtaDepartment of Cariology, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai, India.
Jamal JabrPrivate Practice, Luxembourg, Luxembourg.
Cynthia KamelDepartment of Endodontics, Faculty of Dental Medicine, Saint Joseph University of Beirut, Beirut, Lebanon.
Roula El HachemDepartment of Endodontics, Faculty of Dental Medicine, Saint Joseph University of Beirut, Beirut, Lebanon.
Youssef HaikelDepartment of Biomaterials and Bioengineering, INSERM UMR_S 1121, Strasbourg University, Strasbourg, France.
Marc Krikor KaloustianDepartment of Endodontics, Faculty of Dental Medicine, Saint Joseph University of Beirut, Beirut, Lebanon.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesThe aim of this study was to determine the effect of apical preparation size and preparation taper on smear layer removal using a metallic needle and a new polymer needle (IrriFlex, Produits Dentaires SA "PD," Vevey, Switzerland). MATERIALS AND

methodsOne hundred and eight single-rooted teeth with one canal were randomly divided into four groups according to the preparation and irrigation needle used: G1-30, 0.04 and IrriFlex ( STATISTICAL ANALYSIS: Data were statistically analyzed by using one-way and two-way analysis of variance on ranks with a significance level at

resultsFor all groups, there was significantly higher smear layer in the apical third (

conclusionAll groups showed less smear layer in the middle and coronal thirds of the canal compared with the apical third. The 25, 0.06 preparation was more effective in removing smear layer compared with the 30, 0.04 preparation. IrriFlex improved irrigation in the 30, 0.04 preparation, while its efficacy was less evident in the 25, 0.06 preparation.

Identifiers

PMID39750519
PMCPMC12182406

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