Which statement accurately describes a total etch system in adhesive resins?

A total etch system in adhesive resins is characterized by its three-step process, which involves the use of an etchant, a primer, and a bonding agent.

In this system, the etchant, typically an acidic solution, is first applied to the tooth structure to create a micro-retentive surface by demineralizing enamel and dentin. This is crucial for achieving a strong mechanical bond. Following this, a primer is applied, which often contains hydrophilic monomers that enhance the penetration of the bonding agent into the prepared surface. The final step is the application of the bonding agent, which consists of hydrophobic monomers that form a durable bond with both the tooth structure and any restorative materials.

Overall, the integration of these three components—etchant, primer, and bonding agent—establishes a strong bond, making the total etch system effective in achieving optimal adhesion in restorative dentistry.