Effect of Storage Time on Bond Strength and Nanoleakage Expression of Universal Adhesives Bonded to Dentin and Etched Enamel.

Clinical Relevance The bond strength of a universal adhesive to dentin or etched enamel can be similar to that of conventional restorative systems in the long term; however, the bonding efficacy of both bonding techniques may decrease with aging, leading to leakage formation at the adhesive/dentin interface.