Evidence map›Paper›PMID 42482876›Full record

ReviewJournal of clinical and experimental dentistry2026

In vitro assessment of integrated apex locator systems: working length accuracy, operational parameters, and mechanical effects on NiTi instruments.

Roberto Barreto Osaki, Raimundo Sales de Oliveira-Neto, Gabriel Nakamura Ramos de Luca, Ricardo Gariba da Silva, Guilherme Ferreira da Silva, Bruno Carvalho de Vasconcelos, Rodrigo Ricci Vivan, Murilo Priori Alcalde, Marco Antonio Hungaro Duarte

Abstract readReview
In one paragraph

Review in Journal of clinical and experimental dentistry, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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0cells of the map it votes in
0citing papers in PubMed
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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

0 citing papers in PubMed.

No citing paper in PubMed yet.

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

9 authors.

Roberto Barreto OsakiDepartment of Operative Dentistry, Endodontics, and Dental Materials, Bauru School of Dentistry, University of São Paulo - USP, Bauru, Brazil.
Raimundo Sales de Oliveira-NetoDepartment of Operative Dentistry, Endodontics, and Dental Materials, Bauru School of Dentistry, University of São Paulo - USP, Bauru, Brazil.
Gabriel Nakamura Ramos de LucaDepartment of Operative Dentistry, Endodontics, and Dental Materials, Bauru School of Dentistry, University of São Paulo - USP, Bauru, Brazil.
Ricardo Gariba da SilvaDepartment of Restorative Dentistry, Riberião Preto School of Dentistry, University of São Paulo - Riberião Preto, Brazil.
Guilherme Ferreira da SilvaDepartment of Operative Dentistry, Endodontics, and Dental Materials, Bauru School of Dentistry, University of São Paulo - USP, Bauru, Brazil.
Bruno Carvalho de VasconcelosDepartment Dentistry, University Federal of Ceara, Sobral, Brazil.
Rodrigo Ricci VivanDepartment of Operative Dentistry, Endodontics, and Dental Materials, Bauru School of Dentistry, University of São Paulo - USP, Bauru, Brazil.
Murilo Priori AlcaldeDepartment of Operative Dentistry, Endodontics, and Dental Materials, Bauru School of Dentistry, University of São Paulo - USP, Bauru, Brazil.
Marco Antonio Hungaro DuarteDepartment of Operative Dentistry, Endodontics, and Dental Materials, Bauru School of Dentistry, University of São Paulo - USP, Bauru, Brazil.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Background: This study aimed to evaluate the accuracy of four hybrid endodontic motors-VDW Gold (VDW), iRoot Pro (IRP), E-Connect S (ECS), and TriAuto ZX2 (TZX)-in maintaining length, speed, and angulation during alternating and continuous rotation kinematics and the influence of these parameters on instrument fatigue. Materials and Methods: Forty-eight mandibular incisors (n=12 per group) were used to assess apex locator accuracy during glide path procedures with alternating rotation and auto apical stop (AAS) set to the apical foramen (AF: 0.0). Positioning precision was evaluated using micro-CT, while torsional resistance of instruments was tested per ISO 3630-1. Actual speed and angulation were measured using a tachometer and Arduino system. Cyclic fatigue testing was conducted with Only One File 25.08 instruments in an artificial curved canal (60°, 5 mm radius). Data were statistically analyzed with a significance level of 5%. Results: The evaluated devices exhibited similar precision (p>0.05). The TZX showed the lowest number of determinations beyond the AF (p<0.05). Regarding torsional testing, no significant differences were observed between groups (p>0.05). The equipment showed substantial differences compared to the values displayed on the screen (p<0.05). The Optimum Glide Path (OGP) motion provided significantly higher resistance to cyclic fatigue (p<0.05). Conclusions: All hybrid motors were accurate in length control, with TZX being the most conservative. Kinematics did not influence torsional resistance, but significant differences were found between programmed and real parameters.

Identifiers

PMID42482876
PMCPMC13386448

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.