SEM image of a cross section of a post-composite build-up that was treated with the MPS pre-hydrolyzed silane (Monobond-S) after 1 month of water storage (2500x; bar= 10 μm). Although the interface did not appear to be affected by water sorption, partial delamination of the quartz fibers from the epoxy resin matrix could be seen (pointer). C: resin composite; F: quartz fibers within the fiber post. M: Epoxy resin matrix of fiber post.