While most bonding agents on the market have been developed for the etch & rinse or self-etch protocol, the newest trend are products that can be used in virtually all applications. This doesn't necessarily mean that they can just be used in both etch & rinse or self-etch modes, but they are also promoted for use with light-cured, dual-cured, and self-cured composites and with both direct and indirect restorations. For specific tests, please see the introductions to Bonding Agents - Etch & Rinse and Bonding Agents - Self-Etch.