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Effect of Surface Treated Silicon Dioxide Nanoparticles on Some Mechanical Properties of Maxillofacial Silicone Elastomer

Current materials used for maxillofacial prostheses are far from ideal and there is a need for novel improved materials which mimic as close as possible the natural behavior of facial soft tissues. This study aimed to evaluate the effect of adding different concentrations of surface treated silicon...

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Detalles Bibliográficos
Autores principales: Zayed, Sara M., Alshimy, Ahmad M., Fahmy, Amal E.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Hindawi Publishing Corporation 2014
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4276352/
https://www.ncbi.nlm.nih.gov/pubmed/25574170
http://dx.doi.org/10.1155/2014/750398
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author Zayed, Sara M.
Alshimy, Ahmad M.
Fahmy, Amal E.
author_facet Zayed, Sara M.
Alshimy, Ahmad M.
Fahmy, Amal E.
author_sort Zayed, Sara M.
collection PubMed
description Current materials used for maxillofacial prostheses are far from ideal and there is a need for novel improved materials which mimic as close as possible the natural behavior of facial soft tissues. This study aimed to evaluate the effect of adding different concentrations of surface treated silicon dioxide nanoparticles (SiO(2)) on clinically important mechanical properties of a maxillofacial silicone elastomer. 147 specimens of the silicone elastomer were prepared and divided into seven groups (n = 21). One control group was prepared without nanoparticles and six study groups with different concentrations of nanoparticles, from 0.5% to 3% by weight. Specimens were tested for tear strength (ASTM D624), tensile strength (ASTM D412), percent elongation, and shore A hardness. SEM was used to assess the dispersion of nano-SiO(2) within the elastomer matrix. Data were analyzed by one-way ANOVA and Scheffe test (α = 0.05). Results revealed significant improvement in all mechanical properties tested, as the concentration of the nanoparticles increased. This was supported by the results of the SEM. Hence, it can be concluded that the incorporation of surface treated SiO(2) nanoparticles at concentration of 3% enhanced the overall mechanical properties of A-2186 silicone elastomer.
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spelling pubmed-42763522015-01-08 Effect of Surface Treated Silicon Dioxide Nanoparticles on Some Mechanical Properties of Maxillofacial Silicone Elastomer Zayed, Sara M. Alshimy, Ahmad M. Fahmy, Amal E. Int J Biomater Research Article Current materials used for maxillofacial prostheses are far from ideal and there is a need for novel improved materials which mimic as close as possible the natural behavior of facial soft tissues. This study aimed to evaluate the effect of adding different concentrations of surface treated silicon dioxide nanoparticles (SiO(2)) on clinically important mechanical properties of a maxillofacial silicone elastomer. 147 specimens of the silicone elastomer were prepared and divided into seven groups (n = 21). One control group was prepared without nanoparticles and six study groups with different concentrations of nanoparticles, from 0.5% to 3% by weight. Specimens were tested for tear strength (ASTM D624), tensile strength (ASTM D412), percent elongation, and shore A hardness. SEM was used to assess the dispersion of nano-SiO(2) within the elastomer matrix. Data were analyzed by one-way ANOVA and Scheffe test (α = 0.05). Results revealed significant improvement in all mechanical properties tested, as the concentration of the nanoparticles increased. This was supported by the results of the SEM. Hence, it can be concluded that the incorporation of surface treated SiO(2) nanoparticles at concentration of 3% enhanced the overall mechanical properties of A-2186 silicone elastomer. Hindawi Publishing Corporation 2014 2014-12-09 /pmc/articles/PMC4276352/ /pubmed/25574170 http://dx.doi.org/10.1155/2014/750398 Text en Copyright © 2014 Sara M. Zayed et al. https://creativecommons.org/licenses/by/3.0/ This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Research Article
Zayed, Sara M.
Alshimy, Ahmad M.
Fahmy, Amal E.
Effect of Surface Treated Silicon Dioxide Nanoparticles on Some Mechanical Properties of Maxillofacial Silicone Elastomer
title Effect of Surface Treated Silicon Dioxide Nanoparticles on Some Mechanical Properties of Maxillofacial Silicone Elastomer
title_full Effect of Surface Treated Silicon Dioxide Nanoparticles on Some Mechanical Properties of Maxillofacial Silicone Elastomer
title_fullStr Effect of Surface Treated Silicon Dioxide Nanoparticles on Some Mechanical Properties of Maxillofacial Silicone Elastomer
title_full_unstemmed Effect of Surface Treated Silicon Dioxide Nanoparticles on Some Mechanical Properties of Maxillofacial Silicone Elastomer
title_short Effect of Surface Treated Silicon Dioxide Nanoparticles on Some Mechanical Properties of Maxillofacial Silicone Elastomer
title_sort effect of surface treated silicon dioxide nanoparticles on some mechanical properties of maxillofacial silicone elastomer
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4276352/
https://www.ncbi.nlm.nih.gov/pubmed/25574170
http://dx.doi.org/10.1155/2014/750398
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