Cargando…
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...
Autores principales: | , , , , |
---|---|
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 |
_version_ | 1783299211896291328 |
---|---|
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. |
format | Online Article Text |
id | pubmed-5806982 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2017 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
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 |
work_keys_str_mv | AT bishtishaza modifiedglassionomercementwithremoveondemandpropertiesaninvitrostudy AT tunataskin modifiedglassionomercementwithremoveondemandpropertiesaninvitrostudy AT agrawalgarima modifiedglassionomercementwithremoveondemandpropertiesaninvitrostudy AT pichandrij modifiedglassionomercementwithremoveondemandpropertiesaninvitrostudy AT wolfartstefan modifiedglassionomercementwithremoveondemandpropertiesaninvitrostudy |