Multi-scale analysis of the effect of nano-filler particle diameter on the physical properties of CAD/CAM composite resin blocks
| Autor: | Satoshi Yamaguchi, Tomohiro Abe, Haruaki Kitagawa, Sayuri Inoue, Takahiko Sakai, Satoshi Imazato |
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| Rok vydání: | 2017 |
| Předmět: |
Materials science
Compressive Strength Composite number Biomedical Engineering Bioengineering CAD 02 engineering and technology Homogenization (chemistry) Composite Resins Polyethylene Glycols 03 medical and health sciences 0302 clinical medicine Polymethacrylic Acids Elastic Modulus Nano Materials Testing Bisphenol A-Glycidyl Methacrylate Correlation test Composite material Particle Size 030206 dentistry General Medicine 021001 nanoscience & nanotechnology Silicon Dioxide Computer Science Applications Human-Computer Interaction Compressive strength Computer-Aided Design Nanoparticles 0210 nano-technology Filler particle |
| Zdroj: | Computer methods in biomechanics and biomedical engineering. 20(7) |
| ISSN: | 1476-8259 |
| Popis: | The objective of this study was to assess the effect of silica nano-filler particle diameters in a computer-aided design/manufacturing (CAD/CAM) composite resin (CR) block on physical properties at the multi-scale in silico. CAD/CAM CR blocks were modeled, consisting of silica nano-filler particles (20, 40, 60, 80, and 100 nm) and matrix (Bis-GMA/TEGDMA), with filler volume contents of 55.161%. Calculation of Young's moduli and Poisson's ratios for the block at macro-scale were analyzed by homogenization. Macro-scale CAD/CAM CR blocks (3 × 3 × 3 mm) were modeled and compressive strengths were defined when the fracture loads exceeded 6075 N. MPS values of the nano-scale models were compared by localization analysis. As the filler size decreased, Young's moduli and compressive strength increased, while Poisson's ratios and MPS decreased. All parameters were significantly correlated with the diameters of the filler particles (Pearson's correlation test, r = -0.949, 0.943, -0.951, 0.976, p 0.05). The in silico multi-scale model established in this study demonstrates that the Young's moduli, Poisson's ratios, and compressive strengths of CAD/CAM CR blocks can be enhanced by loading silica nanofiller particles of smaller diameter. CAD/CAM CR blocks by using smaller silica nano-filler particles have a potential to increase fracture resistance. |
| Databáze: | OpenAIRE |
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