EVALUATION OF MICROBIAL BIOFILM ADHESION AND SURFACE MECHANICAL PROPERTIES OF MODIFIED AKASITE WITH TITANIUM DIOXIDE NANOPARTICLES

Document Type : Original Article

Authors

1 Assistant Professor, Dental Biomaterials Department, Faculty of Dentistry, Zagazig University

2 Microbiology and Immunology Department Faculty of Pharmacy Zagazig University

3 Assistant Professor, Operative Dentistry Department, Faculty of Dentistry, Mansoura University

Abstract

Objective: To assess the ability of modified alkasite with TiO2 nanoparticles (NPs) to prevent microbial biofilm adhesion without compromising the color and surface mechanical properties of the new formulations.
Materials and Methods: The Powder of TiO2 NPs was added to alkasite powder in ratios of 3, 5 and 7% (w/w). Crystal violet assay (CV) method was used for assessment of microbial biofilm adhesion, micro hardness was measured by Vickers diamond indentor, color changes of the modified alkasite powder were measured by a spectrophotometer, and surface roughness values were recorded using digital microscope. Three dimensional images were taken for all groups. One and two-way ANOVA were used for the statistical analysis, followed by Tukey′s test.
Results: Increased the ratio of titanium dioxide nanoparticles added to alkasite significantly decreased microbial biofilm formation without compromising other properties.
Conclusion: The alkasite restorative material modified by 7% nano-titania significantly decreased microbial biofilm formation without any effect on the color and mechanical properties.

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Egyptian Dental Journal
Volume 69, Issue 3 - Serial Number 5
Conservative Dentistry and Endodontics
July 2023
Pages 2379-2388

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