Mechanical Properties of Glass Ionomer Cement for Dental Restorative Material
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Abstract
In this study, mechanical properties of glass ionomer cement (GIC) with epoxy resin were
synthesized to improve mechanical properties of GIC for clinical dentistry. GIC samples were
characterized by XRD, SEM and tensile tests using Universal Testing machine (UTM). The glass
Ionomers cement did not show any sharp peaks on XRD pattern and demonstrated amorphous material
in nature. SEM images did not depict any definite shape of used material. The EDX spectrum of glass
ionomers cement displayed the main peaks of Al,Ca, F, Na and Si elements. Mechanical tests were
performed using UTM Instron 5966, U.K. Young modulus was improved with the concentration of
GIC (1wt. % to 3 wt. %) adding epoxy resins material. Tensile tests of glass ionomer cement
showed the highest value of Young modulus at (3 wt. %) concentration of GIC due to excessive
cohesive forces and higher bonding strength at higher concentration. This study concludes that
mechanical properties of glass ionomer cement have been improved using epoxy resins for dental
restorative material for clinical application.
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