Evaluation of Flexural Strength and Impact Strength of CAD/CAM and Heat Cured Acrylic Resin Modified by Zinc Oxide Nanoparticles | ||
| Al-Rafidain Dental Journal | ||
| Volume 23, Issue 2, September 2023, Pages 335-346 PDF (620.89 K) | ||
| Document Type: Research Paper | ||
| DOI: 10.33899/rdenj.2023.137914.1189 | ||
| Authors | ||
| Mustafa Alshakarchi* 1; Radhwan H Hasan* 2 | ||
| 1Ministry of Health/ Nineveh Health Directorate | ||
| 2Department of Prosthodontic, Mosul University, Dentistry College, Mosul, Iraq | ||
| Abstract | ||
| Aims: To analyse the effects of the incorporation of Zinc Oxide nanoparticles (ZnO NPs) with actual size (10-30 nm) at one concentration (1%) and compare it with milling CAD/CAM and non-modified heat cure denture base materials on the flexural strength and impact strength. Materials and methods: samples' number were 60, which was divided into thirty specimens for each test and sub-grouped into 10 for each group (control, 1 % ZnO NPs, CAD/CAM). Using the SPSS program, the statistical analysis was carried out using ANOVA, descriptive statistics, and Duncan's test at a significant p ≤ 0.05. Results: The findings showed a substantial difference between the groups. Moreover, milled CAD/CAM PMMA material had the highest flexural strength and impact strength than groups. Morever, Flexural strength and impact strength for the PMMA-ZnO nanocomposite at ZnO nanoparticles (1%) increased significantly, when compared to control. Conclusions: For edentulous patients, milled CAD/CAM dentures are more suitable because of their improved mechanical properties. in addition, that use of ZnO nanoparticles as dental fillers at 1% by weight significantly increased the PMMA denture base material's flexural and impact strength. | ||
| Keywords | ||
| Keywords Flexural strength; Impact strength; ZnO nanoparticles; CAD/CAM | ||
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