Effect of Cerium Oxide Nanoparticles Incorporation on Surface Roughness and Wettability of Acrylic-Based Soft Lining Material

Document Type : Research Paper

Authors

Department of Prosthodontics, College of Dentistry, University of Baghdad, Baghdad, Iraq

Abstract

Denture soft liners are designed to improve patient performance by modifying prosthetic surfaces that contact soft tissues in the oral cavity. One of the methods used to improve its mechanical properties was nanotechnology.
Objective: This study focused on the effects of cerium oxide nanoparticles on the surface roughness and wettability of acrylic base soft liners.
Methods: Sixty samples were created by adding cerium oxide nanoparticles to soft liner monomer at weight percentages of 0%, 2%, and 3%. According to conducted tests, research samples were segregated into two groups, surface roughness and wettability tests, each group containing 30 specimens; 10 control specimens for each test were prepared without cerium oxide nanoparticles addition, and ten specimens for each different percentage of CeO2 NPs 2% and 3% by the weight. The information was analyzed using descriptive statistics, ANOVA, and Tukey's multiple comparisons test.
Results: The mean of the surface roughness and wettability for the group that incorporated 3% by weight of cerium oxide exhibited a significant increase compared to the remaining groups. At the same time, the mean value for 2% by weight cerium oxide group increased significantly in the wettability test and uncovered no discernible variation in surface roughness compared to the control group.
Conclusion: This in vitro investigation indicates that including Cerium Oxide nanoparticles at concentrations exceeding 2% negatively influences the wettability and surface roughness of the acrylic-based soft lining materials.

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