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Mechanical and dentin bond strength properties of the nanosilver enriched glass ionomer cement

BACKGROUND: The aim of this study was to investigate the mechanical properties and dentin microshear bond strength of a conventional glass ionomer cement (GIC) compared to GIC supplemented with silver nanoparticles (SNPs) at 0.1% and 0.2% (w/w). MATERIAL AND METHODS: SNPs were incorporated into a co...

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Autores principales: Jowkar, Zahra, Jowkar, Mohammad, Shafiei, Fereshteh
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Medicina Oral S.L. 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6461736/
https://www.ncbi.nlm.nih.gov/pubmed/31001399
http://dx.doi.org/10.4317/jced.55522
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author Jowkar, Zahra
Jowkar, Mohammad
Shafiei, Fereshteh
author_facet Jowkar, Zahra
Jowkar, Mohammad
Shafiei, Fereshteh
author_sort Jowkar, Zahra
collection PubMed
description BACKGROUND: The aim of this study was to investigate the mechanical properties and dentin microshear bond strength of a conventional glass ionomer cement (GIC) compared to GIC supplemented with silver nanoparticles (SNPs) at 0.1% and 0.2% (w/w). MATERIAL AND METHODS: SNPs were incorporated into a conventional GIC at 0.1% and 0.2% (w/w). The unmodified GIC was used as the control group. Compressive strength, flexural strength, and micro-shear bond strength (µSBS) to dentin were evaluated using a universal testing machine. Surface microhardness was determined using a Vickers microhardness tester. The data were analyzed using one-way analysis of variance (ANOVA) and Tukey’s test. RESULTS: GICs containing 0.1% and 0.2% (w/w) SNPs significantly improved compressive strength, surface microhardness, and dentin µSBS compared to the unmodified GIC (p<0.05). A significant increase in the flexural strength was found for the GIC containing 0.2% (w/w) SNPs (p<0.05). However, the GIC containing 0.1% (w/w) SNPs did not affect flexural strength. CONCLUSIONS: GIC supplemented with SNP is a promising material for restoration because of its improved mechanical and bond strength properties. Therefore, it may be suggested for use especially in higher stress-bearing site restorations. Key words:Glass ionomer cement, mechanical properties, micro-shear bond strength, silver nanoparticle.
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spelling pubmed-64617362019-04-18 Mechanical and dentin bond strength properties of the nanosilver enriched glass ionomer cement Jowkar, Zahra Jowkar, Mohammad Shafiei, Fereshteh J Clin Exp Dent Research BACKGROUND: The aim of this study was to investigate the mechanical properties and dentin microshear bond strength of a conventional glass ionomer cement (GIC) compared to GIC supplemented with silver nanoparticles (SNPs) at 0.1% and 0.2% (w/w). MATERIAL AND METHODS: SNPs were incorporated into a conventional GIC at 0.1% and 0.2% (w/w). The unmodified GIC was used as the control group. Compressive strength, flexural strength, and micro-shear bond strength (µSBS) to dentin were evaluated using a universal testing machine. Surface microhardness was determined using a Vickers microhardness tester. The data were analyzed using one-way analysis of variance (ANOVA) and Tukey’s test. RESULTS: GICs containing 0.1% and 0.2% (w/w) SNPs significantly improved compressive strength, surface microhardness, and dentin µSBS compared to the unmodified GIC (p<0.05). A significant increase in the flexural strength was found for the GIC containing 0.2% (w/w) SNPs (p<0.05). However, the GIC containing 0.1% (w/w) SNPs did not affect flexural strength. CONCLUSIONS: GIC supplemented with SNP is a promising material for restoration because of its improved mechanical and bond strength properties. Therefore, it may be suggested for use especially in higher stress-bearing site restorations. Key words:Glass ionomer cement, mechanical properties, micro-shear bond strength, silver nanoparticle. Medicina Oral S.L. 2019-03-01 /pmc/articles/PMC6461736/ /pubmed/31001399 http://dx.doi.org/10.4317/jced.55522 Text en Copyright: © 2019 Medicina Oral S.L. http://creativecommons.org/licenses/by/2.5/ This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Research
Jowkar, Zahra
Jowkar, Mohammad
Shafiei, Fereshteh
Mechanical and dentin bond strength properties of the nanosilver enriched glass ionomer cement
title Mechanical and dentin bond strength properties of the nanosilver enriched glass ionomer cement
title_full Mechanical and dentin bond strength properties of the nanosilver enriched glass ionomer cement
title_fullStr Mechanical and dentin bond strength properties of the nanosilver enriched glass ionomer cement
title_full_unstemmed Mechanical and dentin bond strength properties of the nanosilver enriched glass ionomer cement
title_short Mechanical and dentin bond strength properties of the nanosilver enriched glass ionomer cement
title_sort mechanical and dentin bond strength properties of the nanosilver enriched glass ionomer cement
topic Research
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6461736/
https://www.ncbi.nlm.nih.gov/pubmed/31001399
http://dx.doi.org/10.4317/jced.55522
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