پديد آورنده :
سيدان ، فاطمه سادات
عنوان :
تاثير افزودن نانو ذرات فورستريت بر خواص مكانيكي و زيستي سيمان هاي گلاس آينومر
مقطع تحصيلي :
كارشناسي ارشد
گرايش تحصيلي :
شناسايي و انتخاب و روش ساخت مواد
محل تحصيل :
اصفهان: دانشگاه صنعتي اصفهان، دانشكده مواد
صفحه شمار :
سيزده،86ص:مصور،جدول ،نمدار
يادداشت :
ص.ع.به فارسي و انگليسي
استاد راهنما :
محمد حسين فتحي، حسين ادريس
استاد مشاور :
وجيه السادات مرتضويي، علي دوست حسيني
توصيفگر ها :
سل-ژل , رهايش فلورايد , زيست فعالي
تاريخ نمايه سازي :
11/9/92
استاد داور :
احمد منشي، حميدرضا سليمي جزي
چكيده فارسي :
به فارسي و انگليسي: قابل رويت در نسخه ديجيتالي
چكيده انگليسي :
IUT 84156 83111 Degree M Sc Title The effect of addition of forsterite nanoparticles on mechanical and biological properties of glass ionomer cements Author Fatemeh Sadat Sayyedan Supervisor Mohammadhossein Fathi Department Materials Engineering Date 6 25 2013 Language Persian Abstract The objective of this study was the synthesis of glass ionomer forsterite nanocomposite and the survey of the effect of addition of forsterite nanoparticles to the ceramic part of glass ionomer cement GIC in order to improvement its mechanical properties and bioactivity So forsterite nanoparticles were made by the sol gel process X ray diffraction XRD technique was used in order to phase structure characterization and determination of grain size of produced forsterite nanopowder Glass ionomer forsterite nanocomposite was fabricated via adding 1 2 3 and 4 wt of forsterite nanoparticles to the ceramic part of commercial GIC Fuji II GC In order to study of mechanical properties of produced nanocomposite the compressive strength CS three point flexural strength FS and diametral tensile strength DTS of specimens were measured Statistical analysis was done using one way ANOVA and differences were considered significant if P 0 05 The morphology of fracture surface of specimens was examined using scanning electron microscopy SEM technique Fluoride ion release experiment and simulated body fluid SBF were used in order to study of the fluoride ion release from produced nanocomposite and its in vitro bioactivity respectively The results of XRD analysis confirmed that nanocrystalline and pure forsterite powder was obtained On base of mechanical properties measurements the optimum weight percentage of forsterite nanoparticles for enhancement of CS FS and DTS were gotten equal to 3 1 and 1 wt respectively Fluoride ion release evaluation showed that the values of released fluoride ions from produced nanocomposite are somewhat less than Fuji II GC during test time SEM images the pH changes of the SBF and results of the inductively coupled plasma Optical Emission Spectroscopy ICP OES Fourier transform infra red spectroscopy FTIR and Energy dispersive X ray spectroscopy EDS confirmed the bioactivity of the produced nanocomposite too Statistical analysis showed that the differences between the results of all groups were significant P 0 05 The results showed that glass ionomer forsterite nanocomposite containing 1wt forsterite nanoparticles could be a good candidate in high stress dental restorations and orthopedic implants through of improvement of mechanical properties and bioactivity and preservation of fluoride ion release behavior Key words Glass ionomer cement Forsterite nanoparticles Sol gel Mechanical properties Fluoride ion release Bioactivity PDF created with pdfFactory trial version www pdffactory com
استاد راهنما :
محمد حسين فتحي، حسين ادريس
استاد مشاور :
وجيه السادات مرتضويي، علي دوست حسيني
استاد داور :
احمد منشي، حميدرضا سليمي جزي
