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Effect of Hydroxyapatite on Surface Roughness of Zirconomer, and Conventional and Resin-Modified Glass Ionomers
OBJECTIVES: Glass ionomer cements (GICs) are among the most popular dental restorative materials, but their use is limited due to their clinical disadvantages. Many efforts have been made to improve the properties of these materials by adding various fillers. Incorporation of hydroxyapatite (HA) int...
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Formato: | Online Artículo Texto |
Lenguaje: | English |
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Tehran University of Medical Sciences
2020
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9375114/ https://www.ncbi.nlm.nih.gov/pubmed/36042796 http://dx.doi.org/10.18502/fid.v17i36.5201 |
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author | Sharafeddin, Farahnaz Bahrani, Somaye |
author_facet | Sharafeddin, Farahnaz Bahrani, Somaye |
author_sort | Sharafeddin, Farahnaz |
collection | PubMed |
description | OBJECTIVES: Glass ionomer cements (GICs) are among the most popular dental restorative materials, but their use is limited due to their clinical disadvantages. Many efforts have been made to improve the properties of these materials by adding various fillers. Incorporation of hydroxyapatite (HA) into the GICs is considered to improve the physical properties of restorations, and may prevent treatment failure. This study aimed to evaluate the surface roughness (Ra) of a conventional glass ionomer cement (CGIC), a resin-modified glass ionomer (RMGI) and a Zirconomer with and without micro-hydroxyapatite (μHA). MATERIALS AND METHODS: This experimental study was conducted on 6 groups (n=10) including CGIC, CGIC + μHA, RMGI, RMGI + μHA, Zirconomer, and Zirconomer + μHA. A total of 60 disc-shaped samples (6 mm × 2 mm) were prepared in plastic molds and were stored in distilled water for 24 h. After polishing of the specimens, their Ra was measured by a profilometer in micrometers (μm). The data were analyzed using two and one-way ANOVA, Tukey’s HSD test, and independent t-test. RESULTS: Incorporation of μHA resulted in statistically significant differences in Ra between the study groups (P<0.05). Following the incorporation of μHA, the Ra significantly decreased in CGIC (P=0.013) and Zirconomer (P=0.003). However, addition of μHA to RMGI resulted in a significant increase in its Ra (P<0.001). CONCLUSION: Addition of μHA decreased the Ra of Zirconomer and CGIC, and increased the surface roughness of RMGI samples. |
format | Online Article Text |
id | pubmed-9375114 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | Tehran University of Medical Sciences |
record_format | MEDLINE/PubMed |
spelling | pubmed-93751142022-08-29 Effect of Hydroxyapatite on Surface Roughness of Zirconomer, and Conventional and Resin-Modified Glass Ionomers Sharafeddin, Farahnaz Bahrani, Somaye Front Dent Original Article OBJECTIVES: Glass ionomer cements (GICs) are among the most popular dental restorative materials, but their use is limited due to their clinical disadvantages. Many efforts have been made to improve the properties of these materials by adding various fillers. Incorporation of hydroxyapatite (HA) into the GICs is considered to improve the physical properties of restorations, and may prevent treatment failure. This study aimed to evaluate the surface roughness (Ra) of a conventional glass ionomer cement (CGIC), a resin-modified glass ionomer (RMGI) and a Zirconomer with and without micro-hydroxyapatite (μHA). MATERIALS AND METHODS: This experimental study was conducted on 6 groups (n=10) including CGIC, CGIC + μHA, RMGI, RMGI + μHA, Zirconomer, and Zirconomer + μHA. A total of 60 disc-shaped samples (6 mm × 2 mm) were prepared in plastic molds and were stored in distilled water for 24 h. After polishing of the specimens, their Ra was measured by a profilometer in micrometers (μm). The data were analyzed using two and one-way ANOVA, Tukey’s HSD test, and independent t-test. RESULTS: Incorporation of μHA resulted in statistically significant differences in Ra between the study groups (P<0.05). Following the incorporation of μHA, the Ra significantly decreased in CGIC (P=0.013) and Zirconomer (P=0.003). However, addition of μHA to RMGI resulted in a significant increase in its Ra (P<0.001). CONCLUSION: Addition of μHA decreased the Ra of Zirconomer and CGIC, and increased the surface roughness of RMGI samples. Tehran University of Medical Sciences 2020-12-20 /pmc/articles/PMC9375114/ /pubmed/36042796 http://dx.doi.org/10.18502/fid.v17i36.5201 Text en Copyright © 2020 The Authors. Published by Tehran University of Medical Sciences https://creativecommons.org/licenses/by-nc/4.0/This work is published as an open access article distributed under the terms of the Creative Commons Attribution 4.0 License (http://creativecommons.org/licenses/by-nc/4 (https://creativecommons.org/licenses/by-nc/4.0/) ). Non-commercial uses of the work are permitted, provided the original work is properly cited. |
spellingShingle | Original Article Sharafeddin, Farahnaz Bahrani, Somaye Effect of Hydroxyapatite on Surface Roughness of Zirconomer, and Conventional and Resin-Modified Glass Ionomers |
title | Effect of Hydroxyapatite on Surface Roughness of Zirconomer, and Conventional and Resin-Modified Glass Ionomers |
title_full | Effect of Hydroxyapatite on Surface Roughness of Zirconomer, and Conventional and Resin-Modified Glass Ionomers |
title_fullStr | Effect of Hydroxyapatite on Surface Roughness of Zirconomer, and Conventional and Resin-Modified Glass Ionomers |
title_full_unstemmed | Effect of Hydroxyapatite on Surface Roughness of Zirconomer, and Conventional and Resin-Modified Glass Ionomers |
title_short | Effect of Hydroxyapatite on Surface Roughness of Zirconomer, and Conventional and Resin-Modified Glass Ionomers |
title_sort | effect of hydroxyapatite on surface roughness of zirconomer, and conventional and resin-modified glass ionomers |
topic | Original Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9375114/ https://www.ncbi.nlm.nih.gov/pubmed/36042796 http://dx.doi.org/10.18502/fid.v17i36.5201 |
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