Effect of universal testing machine crosshead speed on the shear bond strength and bonding failure mode of composite resin to enamel and dentin

From: Military Medicine | Date: October 1, 2000| Author: Lindemuth, James S | Copyright information

An investigation was conducted to determine if testing machine crosshead speed influenced shear bond strength (SBS) or the failure mode of composite bonded to enamel and dentin. Composite cylinders were bonded to 50 enamel and 50 dentin surfaces and thermocycled. Groups of 10 samples were debonded at speeds of 0.1, 0.5,1.0, 5.0, and 10.0 mm/min. Data were examined with analysis of variance and post-hoc testing. Failure modes were determined using 10x magnification. With enamel, no significant...

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