Mohammed Q Al Qahtani.
Shear bond strength of two water-based adhesives to different dentin conditions.
J Pak Dent Assoc Jan ;19(1):030-3.

OBJECTIVE: To evaluate the shear strength of bonding of two water-based adhesives; namely etch-rinse Syntac Single-Component adhesive and one-step self-etch Adper Prompt L-Pop adhesive to dry or moist dentin. METHODOLOGY: A total of 40 extracted teeth and two water-based adhesives were used in this study. Teeth were divided into 4 groups of 10 teeth each according to the adhesive / dentin condition as follows; Syntac Single- Component / dry dentin, Syntac Single-Component / moist Dentin, Adper Prompt L-Pop / dry dentin and Adper Prompt L-Pop / moist dentin. Filtek Z250 resin composite cylinder was built up on each specimen, and then thermocyced. A shear load was applied to the specimens using Instron machine at a crosshead speed of 0.5mm/min until failure occurred. Data were statistically analyzed by one-way ANOVA and Tukey's multiple comparison test at 95% confidence level. RESULTS: The mean shear bond strengths of Syntac Single-Component to dry and moist dentin were significantly higher than Adper Prompot L-Pop bonded to dentin with similar conditions. CONCLUSION:The low mean shear strengths of bonding Adper Prompot L-Pop to dry and moist dentin could be attributed to the presence of weak acids and the absence of acetone and ethanol solvents in the adhesive itself

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