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Mechanical, antibacterial and bond strength properties of nano-titanium-enriched glass ionomer cement
The use of nanoparticles (NPs) has become a significant area of research in Dentistry. OBJECTIVE: The aim of this study was to investigate the physical, antibacterial activity and bond strength properties of conventional base, core build and restorative of glass ionomer cement (GIC) compared to GIC...
Autores principales: | , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Faculdade de Odontologia de Bauru da Universidade de São Paulo
2015
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4510668/ https://www.ncbi.nlm.nih.gov/pubmed/26221928 http://dx.doi.org/10.1590/1678-775720140496 |
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author | GARCIA-CONTRERAS, Rene SCOUGALL-VILCHIS, Rogelio Jose CONTRERAS-BULNES, Rosalía SAKAGAMI, Hiroshi MORALES-LUCKIE, Raul Alberto NAKAJIMA, Hiroshi |
author_facet | GARCIA-CONTRERAS, Rene SCOUGALL-VILCHIS, Rogelio Jose CONTRERAS-BULNES, Rosalía SAKAGAMI, Hiroshi MORALES-LUCKIE, Raul Alberto NAKAJIMA, Hiroshi |
author_sort | GARCIA-CONTRERAS, Rene |
collection | PubMed |
description | The use of nanoparticles (NPs) has become a significant area of research in Dentistry. OBJECTIVE: The aim of this study was to investigate the physical, antibacterial activity and bond strength properties of conventional base, core build and restorative of glass ionomer cement (GIC) compared to GIC supplemented with titanium dioxide (TiO(2)) nanopowder at 3% and 5% (w/w). MATERIAL AND METHODS: Vickers microhardness was estimated with diamond indenter. Compressive and flexural strengths were analyzed in a universal testing machine. Specimens were bonded to enamel and dentine, and tested for shear bond strength in a universal testing machine. Specimens were incubated with S. mutans suspension for evaluating antibacterial activity. Surface analysis of restorative conventional and modified GIC was performed with SEM and EDS. The analyses were carried out with Kolmogorov-Smirnov, ANOVA (post-hoc), Tukey test, Kruskal-Wallis, and Mann Whitney. RESULTS: Conventional GIC and GIC modified with TiO(2) nanopowder for the base/liner cement and core build showed no differences for mechanical, antibacterial, and shear bond properties (p>0.05). In contrast, the supplementation of TiO(2) NPs to restorative GIC significantly improved Vickers microhardness (p<0.05), flexural and compressive strength (p<0.05), and antibacterial activity (p<0.001), without interfering with adhesion to enamel and dentin. CONCLUSION: GIC supplemented with TiO(2) NPs (FX-II) is a promising material for restoration because of its potential antibacterial activity and durable restoration to withstand the mastication force. |
format | Online Article Text |
id | pubmed-4510668 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2015 |
publisher | Faculdade de Odontologia de Bauru da Universidade de São Paulo |
record_format | MEDLINE/PubMed |
spelling | pubmed-45106682015-08-10 Mechanical, antibacterial and bond strength properties of nano-titanium-enriched glass ionomer cement GARCIA-CONTRERAS, Rene SCOUGALL-VILCHIS, Rogelio Jose CONTRERAS-BULNES, Rosalía SAKAGAMI, Hiroshi MORALES-LUCKIE, Raul Alberto NAKAJIMA, Hiroshi J Appl Oral Sci Original Articles The use of nanoparticles (NPs) has become a significant area of research in Dentistry. OBJECTIVE: The aim of this study was to investigate the physical, antibacterial activity and bond strength properties of conventional base, core build and restorative of glass ionomer cement (GIC) compared to GIC supplemented with titanium dioxide (TiO(2)) nanopowder at 3% and 5% (w/w). MATERIAL AND METHODS: Vickers microhardness was estimated with diamond indenter. Compressive and flexural strengths were analyzed in a universal testing machine. Specimens were bonded to enamel and dentine, and tested for shear bond strength in a universal testing machine. Specimens were incubated with S. mutans suspension for evaluating antibacterial activity. Surface analysis of restorative conventional and modified GIC was performed with SEM and EDS. The analyses were carried out with Kolmogorov-Smirnov, ANOVA (post-hoc), Tukey test, Kruskal-Wallis, and Mann Whitney. RESULTS: Conventional GIC and GIC modified with TiO(2) nanopowder for the base/liner cement and core build showed no differences for mechanical, antibacterial, and shear bond properties (p>0.05). In contrast, the supplementation of TiO(2) NPs to restorative GIC significantly improved Vickers microhardness (p<0.05), flexural and compressive strength (p<0.05), and antibacterial activity (p<0.001), without interfering with adhesion to enamel and dentin. CONCLUSION: GIC supplemented with TiO(2) NPs (FX-II) is a promising material for restoration because of its potential antibacterial activity and durable restoration to withstand the mastication force. Faculdade de Odontologia de Bauru da Universidade de São Paulo 2015 /pmc/articles/PMC4510668/ /pubmed/26221928 http://dx.doi.org/10.1590/1678-775720140496 Text en http://creativecommons.org/licenses/by-nc/3.0/ This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License, which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited. |
spellingShingle | Original Articles GARCIA-CONTRERAS, Rene SCOUGALL-VILCHIS, Rogelio Jose CONTRERAS-BULNES, Rosalía SAKAGAMI, Hiroshi MORALES-LUCKIE, Raul Alberto NAKAJIMA, Hiroshi Mechanical, antibacterial and bond strength properties of nano-titanium-enriched glass ionomer cement |
title | Mechanical, antibacterial and bond strength properties of nano-titanium-enriched glass ionomer cement |
title_full | Mechanical, antibacterial and bond strength properties of nano-titanium-enriched glass ionomer cement |
title_fullStr | Mechanical, antibacterial and bond strength properties of nano-titanium-enriched glass ionomer cement |
title_full_unstemmed | Mechanical, antibacterial and bond strength properties of nano-titanium-enriched glass ionomer cement |
title_short | Mechanical, antibacterial and bond strength properties of nano-titanium-enriched glass ionomer cement |
title_sort | mechanical, antibacterial and bond strength properties of nano-titanium-enriched glass ionomer cement |
topic | Original Articles |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4510668/ https://www.ncbi.nlm.nih.gov/pubmed/26221928 http://dx.doi.org/10.1590/1678-775720140496 |
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