Evidence map›Paper›PMID 38609921›Full record

ArticleBMC oral health2024

Enamel changes of bleached teeth following application of an experimental combination of chitosan-bioactive glass.

Farnoosh Fallahzadeh, Fahimeh Nouri, Ensiyeh Rashvand, Soolmaz Heidari, Farhood Najafi, Negar Soltanian

Open access · goldAbstract read
In one paragraph

Article in BMC oral health, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
2.8field-weighted citation impact, top 11% 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

3 citing papers in PubMed, 7 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

6 authors at 4 institutions in 1 country.

Farnoosh FallahzadehDental Caries Prevention Research Center, Qazvin University of Medical Sciences, Shahid Bahonar Boulevard, Qazvin, Iran.
Fahimeh NouriDental Caries Prevention Research Center, Qazvin University of Medical Sciences, Shahid Bahonar Boulevard, Qazvin, Iran. nouri.fahimeh@yahoo.com.
Ensiyeh RashvandDepartment of Operative Dentistry, School of Dentistry, Alborz University of Medical Sciences, Golshahr, Karaj, Iran. po.rashvand@yahoo.com.
Soolmaz HeidariDental Caries Prevention Research Center, Qazvin University of Medical Sciences, Shahid Bahonar Boulevard, Qazvin, Iran.
Farhood NajafiDepartment of Resin and Additives, Institute for Color Science and Technology, Tehran, Iran.
Negar SoltanianDepartment of Restorative Dentistry, School of Dentistry, Urmia University of Medical Sciences, Urmia, Iran.
Qazvin University of Medical Sciences · IRAlborz University of Medical SciencesInstitute for Color Science and Technology · IRUrmia University of Medical Sciences

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundConsidering the extensive use of bleaching agents and the occurrence of side effects such as enamel demineralization, this study aimed to assess the enamel changes of bleached teeth following the experimental application of chitosan-bioactive glass (CH-BG).

methodsIn this in vitro study, CH-BG (containing 66% BG) was synthesized and characterized by Fourier-transform infrared spectroscopy (FTIR) and X-ray diffraction (XRD). Thirty sound human premolars were bleached with 40% hydrogen peroxide, and the weight% of calcium and phosphorus elements of the buccal enamel surface was quantified before and after bleaching by scanning electron microscopy/ energy-dispersive X-ray spectroscopy (SEM, EDX). Depending on the surface treatment of the enamel surface, the specimens were divided into three groups (n = 10): control (no treatment), MI Paste (MI), and CH-BG. Then the specimens were stored in artificial saliva for 14 days. The SEM/EDX analyses were performed again on the enamel surface. Data were analyzed by one-way ANOVA and Tukey's test and a p-value of < 0.05 was considered statistically significant.

resultsIn all groups, the weight% of calcium and phosphorus elements of enamel decreased after bleaching; this reduction was significant for phosphorus (p < 0.05) and insignificant for calcium (p > 0.05). After 14 days of remineralization, the weight% of both calcium and phosphorus elements was significantly higher compared to their bleached counterparts in both MI and CH-BG groups (p < 0.05). Following the remineralization process, the difference between MI and CH-BG groups was not significant (p > 0.05) but both had a significant difference with the control group in this regard (p < 0.05).

conclusionsThe synthesized CH-BG compound showed an efficacy comparable to that of MI Paste for enamel remineralization of bleached teeth.

Indexed as

ChitosanTooth BleachingCalciumDental EnamelHumansPhosphorusCalciumChitosanPhosphorusBioactive glassChitosanDental BleachingRemineralization

Identifiers

PMID38609921
PMCPMC11015582
OpenAlexW4394748723

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.