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Modified Glass Ionomer Cement with “Remove on Demand” Properties: An In Vitro Study

Objectives: To investigate the influence of different temperatures on the compressive strength of glass ionomer cement (GIC) modified by the addition of silica-coated wax capsules; Material and Methods: Commercially-available GIC was modified by adding 10% silica-coated wax capsules. Test blocks wer...

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Autores principales: Bishti, Shaza, Tuna, Taskin, Agrawal, Garima, Pich, Andrij, Wolfart, Stefan
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2017
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5806982/
https://www.ncbi.nlm.nih.gov/pubmed/29563415
http://dx.doi.org/10.3390/dj5010009
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author Bishti, Shaza
Tuna, Taskin
Agrawal, Garima
Pich, Andrij
Wolfart, Stefan
author_facet Bishti, Shaza
Tuna, Taskin
Agrawal, Garima
Pich, Andrij
Wolfart, Stefan
author_sort Bishti, Shaza
collection PubMed
description Objectives: To investigate the influence of different temperatures on the compressive strength of glass ionomer cement (GIC) modified by the addition of silica-coated wax capsules; Material and Methods: Commercially-available GIC was modified by adding 10% silica-coated wax capsules. Test blocks were fabricated from pure cement (control) and modified cement (test), and stored in distilled water (37 °C/23 h). The compressive strength was determined using a universal testing machine under different temperatures (37 °C, 50 °C, and 60 °C). The maximum load to failure was recorded for each group. Fractured surfaces of selected test blocks were observed by scanning electron microscopy (SEM); Results: For the control group, the average compressive strength was 96.8 ± 11.8, 94.3 ± 5.7 and 72.5 ± 5.7 MPa for the temperatures 37 °C, 50 °C and 60 °C respectively. The test group reported compressive strength of 64.8 ± 5.4, 47.1 ± 5.4 and 33.4 ± 3.6 MPa at 37 °C, 50 °C and 60 °C, respectively. This represented a decrease of 28% in compressive strength with the increase in temperature from 37 °C to 50 °C and 45% from the 37 °C to the 60 °C group; Conclusion: GIC modified with 10% silica-coated wax capsules and temperature application show a distinct effect on the compressive strength of GIC. Considerable compressive strength reduction was detected if the temperature was above the melting temperature of the wax core.
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spelling pubmed-58069822018-03-16 Modified Glass Ionomer Cement with “Remove on Demand” Properties: An In Vitro Study Bishti, Shaza Tuna, Taskin Agrawal, Garima Pich, Andrij Wolfart, Stefan Dent J (Basel) Article Objectives: To investigate the influence of different temperatures on the compressive strength of glass ionomer cement (GIC) modified by the addition of silica-coated wax capsules; Material and Methods: Commercially-available GIC was modified by adding 10% silica-coated wax capsules. Test blocks were fabricated from pure cement (control) and modified cement (test), and stored in distilled water (37 °C/23 h). The compressive strength was determined using a universal testing machine under different temperatures (37 °C, 50 °C, and 60 °C). The maximum load to failure was recorded for each group. Fractured surfaces of selected test blocks were observed by scanning electron microscopy (SEM); Results: For the control group, the average compressive strength was 96.8 ± 11.8, 94.3 ± 5.7 and 72.5 ± 5.7 MPa for the temperatures 37 °C, 50 °C and 60 °C respectively. The test group reported compressive strength of 64.8 ± 5.4, 47.1 ± 5.4 and 33.4 ± 3.6 MPa at 37 °C, 50 °C and 60 °C, respectively. This represented a decrease of 28% in compressive strength with the increase in temperature from 37 °C to 50 °C and 45% from the 37 °C to the 60 °C group; Conclusion: GIC modified with 10% silica-coated wax capsules and temperature application show a distinct effect on the compressive strength of GIC. Considerable compressive strength reduction was detected if the temperature was above the melting temperature of the wax core. MDPI 2017-01-23 /pmc/articles/PMC5806982/ /pubmed/29563415 http://dx.doi.org/10.3390/dj5010009 Text en © 2017 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
Bishti, Shaza
Tuna, Taskin
Agrawal, Garima
Pich, Andrij
Wolfart, Stefan
Modified Glass Ionomer Cement with “Remove on Demand” Properties: An In Vitro Study
title Modified Glass Ionomer Cement with “Remove on Demand” Properties: An In Vitro Study
title_full Modified Glass Ionomer Cement with “Remove on Demand” Properties: An In Vitro Study
title_fullStr Modified Glass Ionomer Cement with “Remove on Demand” Properties: An In Vitro Study
title_full_unstemmed Modified Glass Ionomer Cement with “Remove on Demand” Properties: An In Vitro Study
title_short Modified Glass Ionomer Cement with “Remove on Demand” Properties: An In Vitro Study
title_sort modified glass ionomer cement with “remove on demand” properties: an in vitro study
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5806982/
https://www.ncbi.nlm.nih.gov/pubmed/29563415
http://dx.doi.org/10.3390/dj5010009
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