ADHESIVE SYSTEMS: A CRITICAL LOOK AT THE SCIENCE BEHIND ADHESION

Abstract

Adhesive systems play a crucial role in restorative dentistry, providing significant advancements from their introduction to modern technologies. Historically, its evolution reflects the search for greater adhesive efficiency and simplification of clinical protocols. The dental structure, composed of enamel and dentin, has distinct characteristics that influence adhesion. Enamel is highly mineralized, with high-energy surfaces, while dentin is less mineralized, has higher organic content, and dentin fluid, presenting additional adhesion challenges. Adhesive systems chemically interact with these substrates, using monomers, solvents, and primers that promote wettability and copolymerization. Its physical properties, such as viscosity and penetrability, and mechanical properties, such as shear strength, ensure the durability of restorations. The classification of adhesive systems, either by number of steps or by the form of interaction with the substrate, offers criteria for the selection of the most appropriate material. Constant innovation in these systems aims to optimize clinical outcomes, promoting aesthetic, functional, and durable restorations. The integration of scientific knowledge and clinical practice is essential for the continued development of more effective adhesives.

DOI: https://doi.org/10.56238/sevened2024.034-008