Surface treatments of fiber-reinforced posts on the adhesion of resin-based luting agent: An in vitro study

It is not always true that treating the surface of fiber-reinforced posts will make them bond better. This is especially true where the post bonds with the resin-based luting agent, which is not as strong as where the dentin bonds with the cement. This study was done in a lab to see how different treatments on the post surface affected the bond between a luting agent and a fiber post. For the push-out bond strength test, 50 samples of central incisors were used, with 10 in each group. The samples were further divided into subgroups called cervical, middle and apical third. It was found that the bond strength is increased by chemically treating the fiber posts which increased the mechanical interlocking of luting cement with post surface.