A study reveals the critical role of cement film thickness in indirect restorations, showing that thinner layers ensure a better fit and reduce complications like open margins. Testing 21 resin composites, the research uncovers significant variations in film thickness, challenging previous assumptions. Dentists are urged to carefully evaluate materials, as viscosity does not guarantee thin films. The findings suggest a potential shift in practices towards using restorative materials for both restorations and bonding.

Magne, P., Alawie, S., Magne, M., Carvalho, M. & Milani, T. Comparison of Film Thickness of Restorative Composites Considered for Thermo‐Modified Cementation. J. Esthet. Restor. Dent. (2024) doi:10.1111/jerd.13363.