Evidence map›Paper›PMID 33886942›Full record

ArticleJournal of applied oral science : revista FOB2021

The effect of reduced glutathione on the toxicity of silver diamine fluoride in rat pulpal cells.

Seunggun Kim, Mohannad Nassar, Yukihiko Tamura, Noriko Hiraishi, Ahmed Jamleh, Toru Nikaido, Junji Tagami

Open access · diamondAbstract read
In one paragraph

Article in Journal of applied oral science : revista FOB, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
2.1field-weighted citation impact, top 15% 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

18 citing papers in PubMed, 29 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

7 authors at 4 institutions in 3 countries.

Seunggun KimTokyo Medical and Dental University, Graduate School of Medical and Dental Sciences, Department of Cariology and Operative Dentistry, Tokyo, Japan.
Mohannad NassarUniversity of Sharjah, College of Dental Medicine, Department of Preventive and Restorative Dentistry, Sharjah, United Arab Emirates (UAE).ORCID http://orcid.org/0000-0002-0848-0737
Yukihiko TamuraTokyo Medical and Dental University, Bio-Matrix (Dental Pharmacology), Tokyo, Japan.
Noriko HiraishiTokyo Medical and Dental University, Graduate School of Medical and Dental Sciences, Department of Cariology and Operative Dentistry, Tokyo, Japan.ORCID http://orcid.org/0000-0002-7957-2305
Ahmed JamlehNational Guard Health Affairs, King Saud bin Abdulaziz University for Health Sciences, College of Dentistry, Restorative and Prosthetic Dental Sciences, Riyadh, Saudi Arabia.
Toru NikaidoAsahi University, School of Dentistry, Division of Oral Functional Science and Rehabilitation, Department of Operative Dentistry, Gifu, Japan.
Junji TagamiTokyo Medical and Dental University, Graduate School of Medical and Dental Sciences, Department of Cariology and Operative Dentistry, Tokyo, Japan.
Tokyo Medical and Dental University · JPAsahi University · JPKing Saud bin Abdulaziz University for Health Sciences · SAUniversity of Sharjah · AE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionDue to its ability to arrest untreated dental caries, silver diamine fluoride (SDF) has been advocated for indirect pulp capping procedures. However, the high concentrations of silver and fluoride in SDF raise concerns about its biocompatibility to pulpal tissues.

objectivesThis study aimed to investigate the effect of SDF on the viability, alkaline phosphatase (ALP) activity, and morphology of pulpal-like cells (RPC-C2A) and to evaluate the influence of reduced glutathione (GSH) on SDF-induced cytotoxicity and deposit formation on dentin. METHODOLOGY: The cytotoxicity of diluted 38% SDF solutions (10-4 and 10-5), with or without the addition of 5 mM or 50 mM GSH, was evaluated at 6 and 24 hours. Cell viability was detected using WST-8 and the effect on ALP activity was performed using an ALP assay kit. Cell morphology was observed using a phase-contrast microscope. Scanning electron microscopy analysis was conducted to evaluate the effect of GSH incorporation or conditioning on SDF-induced deposit formation on dentin discs. Cytotoxicity data were analyzed by two-way analysis of variance (ANOVA) and Tukey post hoc tests (p<0.05).

resultsThere were significant differences between the groups. The results demonstrated that all tested SDF dilutions caused a remarkable cytotoxic effect, while the addition of GSH prevented SDF-induced damage at 6-hour exposure time in the higher dilution of SDF. Dentin treated with plain SDF or GSH-incorporated SDF solution showed deposit formation with occluded dentinal tubules, unlike the other groups.

conclusionSDF severely disturbed the viability, mineralization-ability, and morphology of pulpal-like cells, while controlled concentrations of GSH had a short-term protective effect against SDF-induced damage. GSH showed an inhibitory effect on SDF-induced dentinal deposit formation. Further research is warranted to evaluate the effect of GSH on caries-arresting, anti-hypersensitivity, and antibacterial functions of SDF.

Indexed as

Dental CariesAnimalsCariostatic AgentsDentinFluorides, TopicalGlutathioneQuaternary Ammonium CompoundsRatsSilver CompoundsCariostatic AgentsFluorides, TopicalGlutathioneQuaternary Ammonium CompoundsSilver Compoundssilver diamine fluoride

Identifiers

PMID33886942
PMCPMC8075293
OpenAlexW3153020484

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

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.