Evidence map›Paper›PMID 34667490›Full record

ArticleJournal of clinical and experimental dentistry2021

Evaluation of dental enamel microproperties after bleaching with 35% hydrogen peroxide and different light sources: An

Alieny-Cristina-Duarte Ferreira, Ana-Luzia-Araújo Batista, José-de Alencar-Fernandes Neto, Thamyres-Maria-Silva Simões, Maria-das Graças-Barbosa da Silva, Daiane-Domingos de Barros, Josefa-Simere-Dos Santos-Barros Catão, Tiago-Almeida de Oliveira, Maria-Helena-Chaves-de Vasconcelos Catão

Open access · diamondAbstract read
In one paragraph

Article in Journal of clinical and experimental dentistry, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed
1.6field-weighted citation impact, top 18% of its field
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

7 citing papers in PubMed, 12 citations in OpenAlex.

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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

9 authors at 1 institution in 1 country.

Alieny-Cristina-Duarte FerreiraMaster's Student of the Graduate Postgraduate Program in Dentistry, State University of Paraiba, R. Baraúnas, 351, Bodocongó, Campina Grande, PB, 58429-500, Brazil.
Ana-Luzia-Araújo BatistaPhD student of the Postgraduate Program in Dentistry, State University of Paraiba, R. Baraúnas, 351, Bodocongó, Campina Grande, PB, 58429-500, Brazil.
José-de Alencar-Fernandes NetoPhD student of the Postgraduate Program in Dentistry, State University of Paraiba, R. Baraúnas, 351, Bodocongó, Campina Grande, PB, 58429-500, Brazil.
Thamyres-Maria-Silva SimõesPhD student of the Postgraduate Program in Dentistry, State University of Paraiba, R. Baraúnas, 351, Bodocongó, Campina Grande, PB, 58429-500, Brazil.
Maria-das Graças-Barbosa da SilvaPhD student of the Postgraduate Program in Dentistry, State University of Paraiba, R. Baraúnas, 351, Bodocongó, Campina Grande, PB, 58429-500, Brazil.
Daiane-Domingos de BarrosDentistry Undergraduates from the State University of Paraiba, R. Baraúnas, 351, Bodocongó, Campina Grande, PB, 58429-500, Brazil.
Josefa-Simere-Dos Santos-Barros CatãoDentistry undergraduates from the Integrated Faculty of Patos, R. Floriano Peixoto, 3333, Santa Rosa, Campina Grande, PB, 58416-440, Brazil.
Tiago-Almeida de OliveiraTeacher of the Department of Statistics, State University of Paraiba, R. Baraúnas, 351, Bodocongó, Campina Grande, PB, 58429-500, Brazil.
Maria-Helena-Chaves-de Vasconcelos CatãoTeacher of the Postgraduate Program in Dentistry, State University of Paraiba, R. Baraúnas, 351, Bodocongó, Campina Grande, PB, 58429-500, Brazil.
Universidade Estadual da Paraíba · BR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundTo evaluate the tooth enamel surface morphology after the action of 35% hydrogen peroxide with and without LED activation. MATERIAL AND

methods70 bovine incisors with an enamel surface of 4x4x3 mm were used, prepared for reading superficial microhardness and roughness. Specimens were randomly distributed and divided into 7 experimental groups (n = 10); G1 = artificial saliva; G2 = 35% HP - 2 sessions (3x15´); G3 = Phosphoric Acid + 35% HP - 3 sessions (3x15´); G4 = 35% HP - 2 sessions (3x15´) + blue LED; G5 = 35% HP - 2 sessions (3x15´) + green LED; G6 = 35% HP - 2 sessions (3x20´) + violet LED; G7 = Violet LED - 2 sessions (3x20´). The results were analyzed by the Anova, Wilcoxon, Dunnett and Tukey tests (α = 0.05).

resultsThe G4 group showed a greater change in microhardness. Regarding roughness, the biggest mean difference between groups occurred in G2, G5 and G7. Optical microscopy showed a smooth enamel surface in groups G2, G5 and G7.

conclusionsChanges in the enamel surface were observed in relation to microhardness, but without significant changes in roughness, where the LED (green and violet) resulted in a smooth surface.

Identifiers

PMID34667490
PMCPMC8501858
OpenAlexW3202984304

What OpenQuestion holds

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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.