A COMPARATIVE STUDY OF BIOACTIVITY AND MECHANICAL PROPERTIES OF MICRO AND NANO DENTAL GLASS IONOMER CEMENT PARTICLES

作者: Khaghani Masumeh , Doostmohammadi Ali

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摘要: Introduction: Lack of information about different glass ionomer cements (GICs) in Iran’s market makes it necessary to conduct further studies production cement. The purpose this study was preparation and characterization nanoand microparticles comparing their mechanical properties vitro bioactivity. Materials & Methods: nanoparticles the ceramic part GIC were prepared using sol-gel method with particle size less than 80 nm produced through melting 70 µm. XRD, XRF, SEM TEM examinations used evaluate phase structure, chemical composition particles’ morphology. For investigating bioactivity, samples immersed simulated body fluid (SBF) for 28 days. Scanning electron microscope (SEM) confirmation apatite layer formation on surface cements. Also, compressive strength determined compared. One-way ANOVA data analysis. Results: results confirmed technique. Amorphous glassy structure powders proper verified by tests. result soaking SBF showed that nGIC had higher bioactivity comparison µGIC. measurements Conclusion: All these nano compared macro

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