Evidence map›Paper›PMID 40092307›Full record

ArticleJournal of clinical and experimental dentistry2025

Impact of different gutta-percha removal techniques on dentinal integrity: An

Orlando Aguirre Guedes, Henrique Carneiro Ferreira, Danielly Moreira Abreu, Kássia Sousa de Lima, Esther Menezes Souza, Yasmin Gomes de Freitas, Daniel de Almeida Decurcio, Carlos Estrela

Abstract read
In one paragraph

Article in Journal of clinical and experimental dentistry, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing 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

2 citing papers in PubMed.

  1. Article
  2. Article
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.

Orlando Aguirre GuedesDepartment of Endodontics, School of Dentistry, Evangelical University of Goiás, Anápolis, GO, Brazil.
Henrique Carneiro FerreiraDepartment of Endodontics, School of Dentistry, Evangelical University of Goiás, Anápolis, GO, Brazil.
Danielly Moreira AbreuDepartment of Endodontics, School of Dentistry, Evangelical University of Goiás, Anápolis, GO, Brazil.
Kássia Sousa de LimaDepartment of Endodontics, School of Dentistry, Evangelical University of Goiás, Anápolis, GO, Brazil.
Esther Menezes SouzaDepartment of Endodontics, School of Dentistry, Evangelical University of Goiás, Anápolis, GO, Brazil.
Yasmin Gomes de FreitasDepartment of Endodontics, School of Dentistry, Evangelical University of Goiás, Anápolis, GO, Brazil.
Daniel de Almeida DecurcioDepartment of Endodontics, School of Dentistry, Evangelical University of Goiás, Anápolis, GO, Brazil.
Carlos EstrelaDepartment of Stomatology Sciences, School of Dentistry, Federal University of Goiás, Goiânia, GO, Brazil.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Background: This study aimed to evaluate the impact of different gutta-percha removal (GPR) techniques on the occurrence of dentinal defects in bovine root canals. Material and Methods: One hundred and eight bovine incisors were selected and stored in distilled water. The crowns were removed, leaving roots approximately 17 mm in length. Twelve roots were left unprepared and served as control (G1), and the remaining 96 roots were instrumented with BioRace files up to size 40/.04 (BR5) and filled with gutta-percha and Sealapex sealer using the lateral condensation technique. Twelve other roots were left filled and received no retreatment procedure (G2). The remaining 84 roots underwent filling material removal with R-Endo (G3), D-Race (G4), WaveOne Gold (G5), ProTaper Retreatment (G6), Mtwo R (G7), Reciproc (G8) instruments or with R1-Clearsonic ultrasonic insert (G9). After GPR, final apical enlargement was achieved using a BR7 (#60/.02) instrument. Roots were sectioned 3, 6 and 9 mm from the apex and observed under a stereomicroscope at 25ᵡ magnification. The presence/absence of root fractures, microcracks, and craze lines were recorded. Chi-square tests compared the incidence of dentinal defects between the groups, with a significance level set at Results: Defects occurred in 46.6% of the samples. No defects were observed in the unprepared canals (control, G1). Defects were detected in all other experimental groups (G2 to G9). Among retreatment techniques the R-Endo group (G3) presented significantly higher microcracks and craze lines ( Conclusions: All GPR methods were linked to dentinal defects. The R-Endo system significantly increased microcracks and craze lines.

Identifiers

PMID40092307
PMCPMC11907345

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