Effect of HEMA-Containing and HEMA-Free Adhesives on the Integrity of Deep Proximal Margin Restorations.

Key Points

• This research examines how HEMA-containing and HEMA-free adhesives affect the quality of dental restorations at deep proximal margins.
• Compared performance of two-step adhesive systems to one-step adhesive systems.
• Evaluated marginal quality at cementum margins using different adhesives.
• Analyzed the impact of HEMA presence in two-step adhesive systems.
• Two-step adhesive systems showed better performance at cementum margins than one-step systems.
• The inclusion of HEMA in two-step adhesives did not negatively affect marginal quality compared to HEMA-free options.