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Assessment of the Impact of the Addition of Nanoparticles on the Properties of Glass–Ionomer Cements

The aim of the study was to evaluate the effects of incorporation of Al(2)O(3), ZrO(2) and TiO(2) nanoparticles into glass–ionomer cements (GICs). Two different GICs were used in the study. Four groups were prepared for each material: the control group (without nanoparticles) and three groups modifi...

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Autores principales: Gjorgievska, Elizabeta, Nicholson, John W., Gabrić, Dragana, Guclu, Zeynep Asli, Miletić, Ivana, Coleman, Nichola J.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7014475/
https://www.ncbi.nlm.nih.gov/pubmed/31936253
http://dx.doi.org/10.3390/ma13020276
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author Gjorgievska, Elizabeta
Nicholson, John W.
Gabrić, Dragana
Guclu, Zeynep Asli
Miletić, Ivana
Coleman, Nichola J.
author_facet Gjorgievska, Elizabeta
Nicholson, John W.
Gabrić, Dragana
Guclu, Zeynep Asli
Miletić, Ivana
Coleman, Nichola J.
author_sort Gjorgievska, Elizabeta
collection PubMed
description The aim of the study was to evaluate the effects of incorporation of Al(2)O(3), ZrO(2) and TiO(2) nanoparticles into glass–ionomer cements (GICs). Two different GICs were used in the study. Four groups were prepared for each material: the control group (without nanoparticles) and three groups modified by the incorporation of nanoparticles at 2, 5 or 10 wt %, respectively. Cements were mixed and placed in moulds (4 mm × 6 mm); after setting, the samples were stored in saline (one day and one week). Compressive strengths were measured and the morphology of the fractured surfaces was analyzed by scanning electron microscopy. The elements released into the storage solutions were determined by Inductively coupled plasma-optical emission spectrometry (ICP-OES). Addition of nanoparticles was found to alter the appearance of cements as examined by scanning electron microscopy. Compressive strength increased with the addition of ZrO(2) and especially TiO(2) nanoparticles, whereas the addition of Al(2)O(3) nanoparticles generally weakened the cements. The ion release profile of the modified cements was the same in all cases. The addition of Al(2)O(3), ZrO(2) and TiO(2) nanoparticles into GICs is beneficial, since it leads to reduction of the microscopic voids in the set cement. Of these, the use of ZrO(2) and TiO(2) nanoparticles also led to increased compressive strength. Nanoparticles did not release detectable levels of ions (Al, Zr or Ti), which makes them suitable for clinical use.
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spelling pubmed-70144752020-03-09 Assessment of the Impact of the Addition of Nanoparticles on the Properties of Glass–Ionomer Cements Gjorgievska, Elizabeta Nicholson, John W. Gabrić, Dragana Guclu, Zeynep Asli Miletić, Ivana Coleman, Nichola J. Materials (Basel) Article The aim of the study was to evaluate the effects of incorporation of Al(2)O(3), ZrO(2) and TiO(2) nanoparticles into glass–ionomer cements (GICs). Two different GICs were used in the study. Four groups were prepared for each material: the control group (without nanoparticles) and three groups modified by the incorporation of nanoparticles at 2, 5 or 10 wt %, respectively. Cements were mixed and placed in moulds (4 mm × 6 mm); after setting, the samples were stored in saline (one day and one week). Compressive strengths were measured and the morphology of the fractured surfaces was analyzed by scanning electron microscopy. The elements released into the storage solutions were determined by Inductively coupled plasma-optical emission spectrometry (ICP-OES). Addition of nanoparticles was found to alter the appearance of cements as examined by scanning electron microscopy. Compressive strength increased with the addition of ZrO(2) and especially TiO(2) nanoparticles, whereas the addition of Al(2)O(3) nanoparticles generally weakened the cements. The ion release profile of the modified cements was the same in all cases. The addition of Al(2)O(3), ZrO(2) and TiO(2) nanoparticles into GICs is beneficial, since it leads to reduction of the microscopic voids in the set cement. Of these, the use of ZrO(2) and TiO(2) nanoparticles also led to increased compressive strength. Nanoparticles did not release detectable levels of ions (Al, Zr or Ti), which makes them suitable for clinical use. MDPI 2020-01-08 /pmc/articles/PMC7014475/ /pubmed/31936253 http://dx.doi.org/10.3390/ma13020276 Text en © 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Gjorgievska, Elizabeta
Nicholson, John W.
Gabrić, Dragana
Guclu, Zeynep Asli
Miletić, Ivana
Coleman, Nichola J.
Assessment of the Impact of the Addition of Nanoparticles on the Properties of Glass–Ionomer Cements
title Assessment of the Impact of the Addition of Nanoparticles on the Properties of Glass–Ionomer Cements
title_full Assessment of the Impact of the Addition of Nanoparticles on the Properties of Glass–Ionomer Cements
title_fullStr Assessment of the Impact of the Addition of Nanoparticles on the Properties of Glass–Ionomer Cements
title_full_unstemmed Assessment of the Impact of the Addition of Nanoparticles on the Properties of Glass–Ionomer Cements
title_short Assessment of the Impact of the Addition of Nanoparticles on the Properties of Glass–Ionomer Cements
title_sort assessment of the impact of the addition of nanoparticles on the properties of glass–ionomer cements
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7014475/
https://www.ncbi.nlm.nih.gov/pubmed/31936253
http://dx.doi.org/10.3390/ma13020276
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