Effect of temperature on shear bond strength of different dentin bonding system

ABSTRACT

Manufacturers currently recommend storage of adhesive materials at room temperatures, the historical practice of using refrigerated storage to extend shelf life is still used by many dentists. To determine The effect of temperature on the shear bond strength of bonding systems to dentin. Resin -based composite cylinders were bonded to dentin on the ground occlusal surfaces of 90 extracted human molars using three deferent dentin bonding systems at [4, 22,29] °C. The results were interpreted multiple range [Dunkin] test. Single bond demonstrated significantly higher shear bond strengths at 23°C than all other groups, at both. 4.0°C. and 29°C Scotch bond and and Prompt L-pop had lower shear bond strengths, but the differences were insignificant in magnitude. The Storage time was not affecting the shear bond strength