Clinical Performance of Resin Composite Restoration After Dentin Biomodification by Grape Seed Extract in Deep Carious Lesions.

using proanthocyanidin-rich grape seed extract as a biomodifier for dentin improved the mechanical properties of dental collagen by cross-linking and dehydrating fibrils. This made the collagen substrate more suitable for hybridization. It also acted as a non-specific MMP-inhibitor, protecting exposed collagen fibrils from biodegradation from dentin proteases.