What is the role of a conditioner in preparing dentin before applying GIC?

In dental procedures, when preparing dentin before applying Glass Ionomer Cement (GIC), the role of a conditioner is primarily to strengthen the bond between the dentin and the cement. The conditioner typically used in this context is an aqueous solution that helps to create a more favorable environment for adhesion.

When applied to dentin, the conditioner demineralizes the surface to a certain degree, which exposes the collagen fibers and prepares a roughened surface. This roughness increases the surface area for bonding and allows the GIC to penetrate into the dentin structure more effectively. Such penetration and bonding are crucial for achieving a durable bond that will withstand the oral environment’s stresses.

While other roles may be relevant in different contexts—such as removing contaminants, enhancing aesthetic qualities, or acting as a desensitizer—those do not directly pertain to the primary function of the conditioner in the adhesion process specifically for GIC application. The main objective is to ensure that the bond structure is solid, promoting longevity and effectiveness in the dental restoration.