Antimicrobial Magnesium oxide (MgO) nanoparticles has recently shown to be homogenously incorporated in dental materials when coated with Zein polymer.
The aim of the study was to investigate the effect of Zein coated MgO nanoparticles on the surface roughness and wettability of flowable resin composite.
Methods: Sixty disc shaped samples were prepared and assigned into six groups (n=10). In the control group, samples were prepared with flowable composite only. In the other five groups, Zein coated MgO nanoparticles of 5 different concentrations (0.3%, 0.5%, 1%, 2% and 5% by weight respectively) were added to the flowable resin. Samples were tested for wettability by drop shape analyzer, while for surface roughness samples were tested using profilometer, followed by scanning electron microscope analysis for particles distribution and surface configuration. Data was collected and analyzed statistically by ANOVA followed by PostHoc test at p < 0.05.
Results: For wettability, there was no statistically significant variance among all groups (p<0.05), except for 0.3% concentration; where wettability was increased (p=0.006). For surface roughness, no statistically significant difference was found between all groups, except for 5% concentration, where roughness increased (p= 0.0001).
Conclusion: Incorporating antimicrobial MgO nanoparticles in composite resin does not alter its surface properties.
Impact Factor
2022: 6.012
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