11Jan 2023
Evaluation of the bonding effectiveness of a universal adhesive to the plasma‐activated dentin surface

Evaluation of the bonding effectiveness of a universal adhesive to the plasma‐activated dentin surface

This study aimed to evaluate the effect of non-thermal atmospheric pressure plasma on the bond strength of a universal adhesive used in etch-and-rinse mode. Dentin surfaces were etched with phosphoric acid, and samples were divided into groups exposed to either dry bonding, plasma-dried bonding, plasma-dried and rewetted bonding, or wet bonding. After the thermal cycles, bond strength values decreased significantly only in the wet bonding group. Micro-Raman spectral analysis revealed that plasma drying increased adhesive penetration, especially hydrophobic monomer infiltration. This may increase the mechanical properties and durability of the resin–dentin interface, provide long-term stability, and improve the polymerization rate of the adhesive layer.

  • #dentistry

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