Evidence map›Paper›PMID 41527103›Full record

ArticleBMC oral health2026

Effect of immersion in different media on the color stability, surface roughness, and microhardness of flowable nanohybrid resin composites.

Hend Yousri Abd-Elfattah, Mohamed Elshirbeny Elawsya, Abeer ElSayed ElEmbaby

Abstract read
In one paragraph

Article in BMC oral health, 2026. 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

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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
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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

3 authors.

Hend Yousri Abd-ElfattahDepartment of Conservative Dentistry, Faculty of Dentistry, Mansoura University, Mansoura, Egypt.
Mohamed Elshirbeny ElawsyaDepartment of Conservative Dentistry, Faculty of Dentistry, Mansoura University, Mansoura, Egypt. mohamedelshirbeny@mans.edu.eg.ORCID http://orcid.org/0000-0002-8772-8314
Abeer ElSayed ElEmbabyDepartment of Conservative Dentistry, Faculty of Dentistry, Mansoura University, Mansoura, Egypt.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundTo evaluate color stability, surface roughness, and microhardness of flowable nanohybrid resin composites following immersion in different media.

methodsPolofil NHT Flow (VOCO GmbH), G-aenial Universal Injectable (GC DENTAL PRODUCTS CORP), and Tetric N-Ceram (Ivoclar Vivadent) were used. From each tested resin composite, 50 disc-shaped specimens (10-mm diameter × 2-mm thickness) were performed. Each group was categorized into five subgroups according to immersion media (n = 10): (1) control (without immersion), (2) artificial saliva, (3) coffee, (4) cola, and (5) energy drink. Color stability, surface roughness, and microhardness were evaluated. Data were analyzed through two-way ANOVA, Tukey’s post-hoc, and Pearson correlation coefficient tests (p < 0.05).

resultsFor color change, no statistically significant differences were observed among the resin composites regarding artificial saliva (p = 0.78), coffee (p = 0.93), and cola (p = 0.09), while there was a significant difference between them regarding energy drink (p < 0.05). The highest surface roughness mean value was recorded with Polofil NHT Flow, which showed an increase in surface roughness after immersion in energy drink (0.32 ± 0.06 μm) compared to the control subgroup (0.22 ± 0.08 μm). For all resin composites, there were significant reductions in microhardness with all immersion media in comparison to the control subgroups (p < 0.05).

conclusionsFor color stability, energy drink and coffee had the most negative effect on all tested resin composites. Energy drink caused the highest discoloration with G-aenial Universal Injectable and the highest roughness with Polofil NHT Flow. All tested resin composites showed a decrease in surface microhardness following immersion in all tested immersion media.

Indexed as

Composite ResinsNanocompositesCarbonated BeveragesCoffeeColorEnergy DrinksHardnessImmersionMaterials TestingSaliva, ArtificialSurface PropertiesCoffeeComposite Resinsflowable hybrid compositeSaliva, ArtificialTetric ceramColor stabilityFlowable resin compositesImmersion mediaSurface microhardnessSurface roughness

Identifiers

PMID41527103
PMCPMC12879416

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LicenceCC BY
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Registered trials

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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.