Antifungal Activity of Denture Base Resin Containing Nanozirconia: In Vitro Assessment of Candida albicans Biofilm

Objective. To evaluate the antimicrobial effects of different concentrations of zirconium dioxide nanoparticles (nano-ZrO2) reinforcement of poly(methyl) methacrylate (PMMA) on surface roughness and C. albicans biofilm. Methods. 20 heat-polymerized acrylic resin discs were conventionally made and di...

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Main Authors: Reem Abualsaud, Doaa M. Aleraky, Sultan Akhtar, Soban Q. Khan, Mohammed M. Gad
Format: Article
Language:English
Published: Wiley 2021-01-01
Series:The Scientific World Journal
Online Access:http://dx.doi.org/10.1155/2021/5556413
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author Reem Abualsaud
Doaa M. Aleraky
Sultan Akhtar
Soban Q. Khan
Mohammed M. Gad
author_facet Reem Abualsaud
Doaa M. Aleraky
Sultan Akhtar
Soban Q. Khan
Mohammed M. Gad
author_sort Reem Abualsaud
collection DOAJ
description Objective. To evaluate the antimicrobial effects of different concentrations of zirconium dioxide nanoparticles (nano-ZrO2) reinforcement of poly(methyl) methacrylate (PMMA) on surface roughness and C. albicans biofilm. Methods. 20 heat-polymerized acrylic resin discs were conventionally made and divided into 4 groups (n = 5) according to nano-ZrO2 concentration: control (0% filler) and 3 experimental groups (2.5% (Z2.5), 5.0% (Z5.0), and 7.5% (Z7.5)). An optical profilometer was used for surface roughness evaluation, followed by Candida adherence assay. Specimens were sterilized, then immersed in cultured yeast (C. albicans), and incubated at 37°C for 48 hours. After that, discs were rinsed before extracting the clustered pellets of Candida. The attached C. albicans was counted using the direct method after spreading on agar media and incubating for 48 hours. Statistical analysis was performed using one-way ANOVA and Tukey’s post hoc test at α = 0.05. Results. Surface roughness was significantly increased with all modified groups compared with control (P<0.01), which showed the lowest roughness value (0.027 ± 0.004 μm). There was no significant difference in the roughness value among reinforced groups (2.5, 5.0, and 7.5%) (P>0.05), with Z7.5 showing the highest roughness value (0.042 ± 0.004 μm). Candida count was reduced as the nano-ZrO2 increased but not significantly (P=0.15). Conclusions. The addition of different concentrations of nano-ZrO2 particles to PMMA increased the surface roughness compared with control; in contrast, insignificant reduction of C. albicans biofilm was detected.
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spelling doaj-art-daa8281da63b446c96be3ffe1b6bc5602025-02-03T07:23:31ZengWileyThe Scientific World Journal2356-61401537-744X2021-01-01202110.1155/2021/55564135556413Antifungal Activity of Denture Base Resin Containing Nanozirconia: In Vitro Assessment of Candida albicans BiofilmReem Abualsaud0Doaa M. Aleraky1Sultan Akhtar2Soban Q. Khan3Mohammed M. Gad4Department of Substitutive Dental Sciences, College of Dentistry, Imam Abdulrahman Bin Faisal University, P.O. Box 1982, Dammam 31441, Saudi ArabiaDepartment of Biomedical Dental Sciences, College of Dentistry, Imam Abdulrahman Bin Faisal University, P.O. Box 1982, Dammam 31441, Saudi ArabiaDepartment of Biophysics, Institute for Research and Medical Consultations, Imam Abdulrahman Bin Faisal University, P.O. Box 1982, Dammam 31441, Saudi ArabiaDepartment of Dental Education, College of Dentistry, Imam Abdulrahman Bin Faisal University, P.O. Box 1982, Dammam 31441, Saudi ArabiaDepartment of Substitutive Dental Sciences, College of Dentistry, Imam Abdulrahman Bin Faisal University, P.O. Box 1982, Dammam 31441, Saudi ArabiaObjective. To evaluate the antimicrobial effects of different concentrations of zirconium dioxide nanoparticles (nano-ZrO2) reinforcement of poly(methyl) methacrylate (PMMA) on surface roughness and C. albicans biofilm. Methods. 20 heat-polymerized acrylic resin discs were conventionally made and divided into 4 groups (n = 5) according to nano-ZrO2 concentration: control (0% filler) and 3 experimental groups (2.5% (Z2.5), 5.0% (Z5.0), and 7.5% (Z7.5)). An optical profilometer was used for surface roughness evaluation, followed by Candida adherence assay. Specimens were sterilized, then immersed in cultured yeast (C. albicans), and incubated at 37°C for 48 hours. After that, discs were rinsed before extracting the clustered pellets of Candida. The attached C. albicans was counted using the direct method after spreading on agar media and incubating for 48 hours. Statistical analysis was performed using one-way ANOVA and Tukey’s post hoc test at α = 0.05. Results. Surface roughness was significantly increased with all modified groups compared with control (P<0.01), which showed the lowest roughness value (0.027 ± 0.004 μm). There was no significant difference in the roughness value among reinforced groups (2.5, 5.0, and 7.5%) (P>0.05), with Z7.5 showing the highest roughness value (0.042 ± 0.004 μm). Candida count was reduced as the nano-ZrO2 increased but not significantly (P=0.15). Conclusions. The addition of different concentrations of nano-ZrO2 particles to PMMA increased the surface roughness compared with control; in contrast, insignificant reduction of C. albicans biofilm was detected.http://dx.doi.org/10.1155/2021/5556413
spellingShingle Reem Abualsaud
Doaa M. Aleraky
Sultan Akhtar
Soban Q. Khan
Mohammed M. Gad
Antifungal Activity of Denture Base Resin Containing Nanozirconia: In Vitro Assessment of Candida albicans Biofilm
The Scientific World Journal
title Antifungal Activity of Denture Base Resin Containing Nanozirconia: In Vitro Assessment of Candida albicans Biofilm
title_full Antifungal Activity of Denture Base Resin Containing Nanozirconia: In Vitro Assessment of Candida albicans Biofilm
title_fullStr Antifungal Activity of Denture Base Resin Containing Nanozirconia: In Vitro Assessment of Candida albicans Biofilm
title_full_unstemmed Antifungal Activity of Denture Base Resin Containing Nanozirconia: In Vitro Assessment of Candida albicans Biofilm
title_short Antifungal Activity of Denture Base Resin Containing Nanozirconia: In Vitro Assessment of Candida albicans Biofilm
title_sort antifungal activity of denture base resin containing nanozirconia in vitro assessment of candida albicans biofilm
url http://dx.doi.org/10.1155/2021/5556413
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