الفهرس 
Chemical composition of GIC powderOnly 14 pages are availabe for public view
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Abstract
The purpose of this study was to evaluate the effect of addition of
different percentages of zirconia and silica nanofibers on the mechanical and
physical properties of conventional glass ionomer cement(GIC).
Materials & Methods:In this study zirconia (ZrO2) and silica (SiO2) nanofibers were prepared by electrospinning technique and characterized by scanning electron
microscope (SEM), X-ray diffraction (XRD) and Fourier transform infrared
spectroscopy(FTIR).This study included control group and two experimental
groups and each experimental group divided into two subgroups; group I: GIC
without nanofibers(n=10)”control group”. group II: GIC reinforced with ZrO2
nanofibers.Subgroup II A: 4% by weight ZrO2 nanofibers (n=10).Subgroup II
B: 8% by weight ZrO2 nanofibers (n=10). group III: GIC reinforced with SiO
nanofibers. Subgroup III A: 4% by weight SiO2 nanofibers (n=10). Subgroup III
B: 8% by weight SiO2 nanofibers (n=10).Compressive strength, Indirect tensile strength, flexural strength, modulus of elasticity, fracture toughness,
microhardness, surface roughness,fluoride release and shear bond strength were
tested for all groups.