What type of cavity varnish is used with a composite restoration?

A dual-cure or light-cure cavity varnish is typically used with composite restorations. These varnishes are designed to seal the dentin and protect it from moisture and bacterial invasion, while also being compatible with the bonding agents used in composite materials. They ensure proper adhesion and enhance the longevity of the restoration. It's important to choose a varnish specifically formulated for use with composites to avoid any potential interference with the curing process.