Evidence map›Paper›PMID 41294204›Full record

ArticleBrazilian dental journal2025

How the NaOCl solution concentration and temperature impact chlorine levels, tissue dissolution and pH.

Maria Eduarda Paz Dotto, Fernanda Guesser, Julia Menezes Savaris, Camila Segatto Hartmann, Amanda Tavares Germano, Lucas da Fonseca Roberti Garcia, Cleonice da Silveira Teixeira

Abstract read
In one paragraph

Article in Brazilian dental journal, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing 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

1 citing paper in PubMed.

  1. 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

7 authors.

Maria Eduarda Paz DottoDepartment of Dentistry, Endodontics Division, Health Sciences Centre, Federal University of Santa Catarina, Florianópolis, SC, Brazil.ORCID 0000-0003-1253-1274
Fernanda GuesserDepartment of Dentistry, Endodontics Division, Health Sciences Centre, Federal University of Santa Catarina, Florianópolis, SC, Brazil.ORCID 0009-0002-6865-4388
Julia Menezes SavarisDepartment of Dentistry, Endodontics Division, Health Sciences Centre, Federal University of Santa Catarina, Florianópolis, SC, Brazil.ORCID 0000-0002-5753-5618
Camila Segatto HartmannDepartment of Dentistry, Endodontics Division, Health Sciences Centre, Federal University of Santa Catarina, Florianópolis, SC, Brazil.ORCID 0000-0001-5476-2666
Amanda Tavares GermanoDepartment of Chemistry Analysis Center, Federal University of Santa Catarina, Florianópolis, SC, Brazil.ORCID 0000-0002-8310-2381
Lucas da Fonseca Roberti GarciaDepartment of Dentistry, Endodontics Division, Health Sciences Centre, Federal University of Santa Catarina, Florianópolis, SC, Brazil.ORCID 0000-0002-8724-0124
Cleonice da Silveira TeixeiraDepartment of Dentistry, Endodontics Division, Health Sciences Centre, Federal University of Santa Catarina, Florianópolis, SC, Brazil.ORCID 0000-0002-0139-8159

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

This study analyzed the behavior of sodium hypochlorite (NaOCl) at various concentrations and temperatures in relation to free available chlorine (FAC), tissue dissolution (TD), and pH. NaOCl solutions (2.50%, 5.25%, and 8.00% w/v) and distilled water (H2O) were evaluated. Each solution was heated to different temperatures (25°C, 37°C, and 60°C) for periods of 5 minutes, 10 minutes, and 15 minutes. For tissue dissolution analysis, bovine tissue samples (n = 10) were immersed in each solution and weighed before and after the designated times. FAC and pH were measured after each heating time. Data normality and homoscedasticity were verified using the Shapiro-Wilk and Levene tests. Solubility data were analyzed using the Kruskal-Wallis test and the Dwass-Steel-Critchlow-Fligner post-hoc test, and pH data were analyzed using one-way ANOVA and the Tukey post-hoc test. FAC data were subjected to a Student's t-test (α = 0.05%). At 25°C, all NaOCl concentrations had similar dissolution effects (p>0.05) and were superior to H2O (p<0.05). At 37°C, the dissolution effect of 2.5% NaOCl was similar to water after 5 min (p>0.05). NaOCl at 5.25% and 8.00% dissolved 90-100% of the samples after 10-15 min (37°C and 60°C). FAC in 2.50% NaOCl decreased when heated (37°C and 60°C), and 5.25% NaOCl showed a FAC reduction at 60°C (p<0.05). NaOCl at 8.00% showed similar results at all temperatures (p>0.05). The pH decreased (p<0.05) at 37°C and 60°C. Increasing NaOCl concentration, temperature, and heating time enhanced the tissue dissolution effect. Higher temperatures also reduced the FAC concentration in 2.50% and 5.25% NaOCl, as well as the pH in all evaluated NaOCl concentrations.

Indexed as

ChlorineSodium HypochloriteAnimalsCattleHydrogen-Ion ConcentrationSolubilityTemperatureChlorineSodium Hypochlorite

Identifiers

PMID41294204
PMCPMC12641582

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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.