"I've been using Renamel Microhybrid since 1994 in cases large and small. Its ability to adapt to the underlying tooth or composite layer is the BEST I've experienced. The chance of trapping air bubbles or having an open margin is reduced because of it's viscosity. The degree of opacity seems ideal for most single material restorations, too, which minimizes tooth show thru in large restorations. I've probably used it in more cases than any other material, and I still use it regularly. "