Abstract
To compare the transverse strength and impact strength of a high impact heat cure denture base resin with that of a conventional heat cure denture base resin reinforced with E-glass and polyethylene fibers. To investigate the relative efficacy of addition of E-glass and polyethylene fibers in improving the impact and transverse strength of a commercially available conventional heat cure resin and compare that with high impact heat cure denture base resin. 80 het cure denture base resin blocks samples; 20 of conventional heat cure denture base resin (DPI India), 20 of high impact heat cure denture base resin (Trevalon High Impact, Dentsply International, Germany), 20 of E-glass fiber(India chemicals limited, Ahmadabad, India) reinforced heat cure denture base resin and 20 of polyethylene (India chemicals limited, Ahmadabad, India) reinforced heat cure denture base resin respectively) were tested with Lloyd’s instrument material (Milano, Italy Model No. LR 100K) for transverse strength and Charpy digital impact tester (Milano, Italy Model No. IZOD 44) for impact strength. There was significant increase in transverse and impact strength values of conventional heat cure denture base resin reinforced with E-glass and polyethylene fibers. However transverse strength of high impact heat cure denture base resin was still higher than conventional heat cure denture base resin reinforced with E-glass and polyethylene fibers.
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