Micropermeability in Cementing Fiber Posts with Self-Adhesive Cement - Influence of the Surface Treatment

Over the last decade, fiber posts have been increasingly used to restore severely damaged, endodontically treated teeth [1-5]. They have become popular as an alternative to metal posts due to their aesthetics and biomimetic behavior, bringing them closer to the properties of the natural dentin [6-8]. By themselves, radicular posts cannot connect to the root canal dentin. This connection is mediated by the cement. The aim is for the cement to provide a tight seal of the endodontic space, to completely prevent micropenetration, to support the formation of a monoblock between the root canal dentin, the cement and the fiber post [3,6,9,10]. One of the main problems with the fiber posts is the loss of retention leading to detachment [3,7,11,12]. There are two factors that need to be worked on. One is related to the surface treatment of the fiber post surface, which is necessary due to the highly crosslinked epoxy matrix of most types of fiber posts [6,3,13].