Effect of Streptococcus mutans on the flexural strength of resin-based restorative materials

Background: There are a limited number of studies about the effects of microbial aging on the mechanical properties of restorative materials. Therefore, this study aimed to evaluate the effect of simulated aging with Streptococcus mutans on the flexural strength of different resin-based materials.Ma...

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Autores principales:	Haleh Valizadeh Haghi, Hadi Peeri-Dogaheh, Sheida Fazlalizadeh, Malek Abazari, Reza Mohammadhosseini
Formato:	article
Lenguaje:	EN
Publicado:	Wolters Kluwer Medknow Publications 2021
Materias:	aging flexural strength streptococcus mutans Dentistry RK1-715
Acceso en línea:	https://doaj.org/article/e1fba000b70f46d496999ae75af045ee
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spelling	oai:doaj.org-article:e1fba000b70f46d496999ae75af045ee2021-11-12T10:10:19ZEffect of Streptococcus mutans on the flexural strength of resin-based restorative materials1735-33272008-025510.4103/1735-3327.328758https://doaj.org/article/e1fba000b70f46d496999ae75af045ee2021-01-01T00:00:00Zhttp://www.drjjournal.net/article.asp?issn=1735-3327;year=2021;volume=18;issue=1;spage=90;epage=90;aulast=Haghihttps://doaj.org/toc/1735-3327https://doaj.org/toc/2008-0255Background: There are a limited number of studies about the effects of microbial aging on the mechanical properties of restorative materials. Therefore, this study aimed to evaluate the effect of simulated aging with Streptococcus mutans on the flexural strength of different resin-based materials.Materials and Methods: This experimental study was performed on the blocks of different types of restorative materials including composite resin, giomer, and a resin-modified glass ionomer (RMGI). Moreover, three types of aging, such as 30-day storage in distilled water, S. mutans, and germ-free culture medium, were used in this study. The three-point bending flexural strength of the specimens before and after aging was measured according to the International Organization for Standardization-4049 standard. Data were analyzed by two-way ANOVA and post hoc Tukey's tests. A P < 0.05 was considered statistically significant.Results: Results showed that the 30-day aging with the S. mutans significantly reduced the flexural strength of all three types of materials (P = 0.00). In all restorative materials, storage in a bacteria-free culture medium acted the same as distilled water, and there was no significant difference between these two solutions in terms of the flexural strength of the material, compared to the before-aging strength (P > 0.05). Furthermore, no significant difference was observed between S. mutans-based aging and distilled water aging regarding RMGI (P = 0.75).Conclusion: It can be concluded that aging by S. mutans reduced the flexural strength in all three restorative materials.Haleh Valizadeh HaghiHadi Peeri-DogahehSheida FazlalizadehMalek AbazariReza MohammadhosseiniWolters Kluwer Medknow Publicationsarticleagingflexural strength streptococcus mutans DentistryRK1-715ENDental Research Journal, Vol 18, Iss 1, Pp 90-90 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	aging flexural strength streptococcus mutans Dentistry RK1-715
spellingShingle	aging flexural strength streptococcus mutans Dentistry RK1-715 Haleh Valizadeh Haghi Hadi Peeri-Dogaheh Sheida Fazlalizadeh Malek Abazari Reza Mohammadhosseini Effect of Streptococcus mutans on the flexural strength of resin-based restorative materials
description	Background: There are a limited number of studies about the effects of microbial aging on the mechanical properties of restorative materials. Therefore, this study aimed to evaluate the effect of simulated aging with Streptococcus mutans on the flexural strength of different resin-based materials.Materials and Methods: This experimental study was performed on the blocks of different types of restorative materials including composite resin, giomer, and a resin-modified glass ionomer (RMGI). Moreover, three types of aging, such as 30-day storage in distilled water, S. mutans, and germ-free culture medium, were used in this study. The three-point bending flexural strength of the specimens before and after aging was measured according to the International Organization for Standardization-4049 standard. Data were analyzed by two-way ANOVA and post hoc Tukey's tests. A P < 0.05 was considered statistically significant.Results: Results showed that the 30-day aging with the S. mutans significantly reduced the flexural strength of all three types of materials (P = 0.00). In all restorative materials, storage in a bacteria-free culture medium acted the same as distilled water, and there was no significant difference between these two solutions in terms of the flexural strength of the material, compared to the before-aging strength (P > 0.05). Furthermore, no significant difference was observed between S. mutans-based aging and distilled water aging regarding RMGI (P = 0.75).Conclusion: It can be concluded that aging by S. mutans reduced the flexural strength in all three restorative materials.
format	article
author	Haleh Valizadeh Haghi Hadi Peeri-Dogaheh Sheida Fazlalizadeh Malek Abazari Reza Mohammadhosseini
author_facet	Haleh Valizadeh Haghi Hadi Peeri-Dogaheh Sheida Fazlalizadeh Malek Abazari Reza Mohammadhosseini
author_sort	Haleh Valizadeh Haghi
title	Effect of Streptococcus mutans on the flexural strength of resin-based restorative materials
title_short	Effect of Streptococcus mutans on the flexural strength of resin-based restorative materials
title_full	Effect of Streptococcus mutans on the flexural strength of resin-based restorative materials
title_fullStr	Effect of Streptococcus mutans on the flexural strength of resin-based restorative materials
title_full_unstemmed	Effect of Streptococcus mutans on the flexural strength of resin-based restorative materials
title_sort	effect of streptococcus mutans on the flexural strength of resin-based restorative materials
publisher	Wolters Kluwer Medknow Publications
publishDate	2021
url	https://doaj.org/article/e1fba000b70f46d496999ae75af045ee
work_keys_str_mv	AT halehvalizadehhaghi effectofstreptococcusmutansontheflexuralstrengthofresinbasedrestorativematerials AT hadipeeridogaheh effectofstreptococcusmutansontheflexuralstrengthofresinbasedrestorativematerials AT sheidafazlalizadeh effectofstreptococcusmutansontheflexuralstrengthofresinbasedrestorativematerials AT malekabazari effectofstreptococcusmutansontheflexuralstrengthofresinbasedrestorativematerials AT rezamohammadhosseini effectofstreptococcusmutansontheflexuralstrengthofresinbasedrestorativematerials
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Effect of Streptococcus mutans on the flexural strength of resin-based restorative materials

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