Fracture Resistance of Endodontically Treated Teeth Restored by Glass Fiber Post and Carbon Post Systems

known that these teeth are generally weak because of dental structure loss, cavities, filling preparation, and root canal instrumentation. These teeth are thus rendered weak. Moreover, the decrease in the dentin moisture further lowers their strength properties, thus making them more susceptible to fractures. Therefore, it is necessary to take utmost care while selecting the most efficient way to restore them.2 To ensure a successful restorative outcome, the esthetic, functional, and structural rehabilitation of a pulpless tooth is critically important. When most of the coronal portion is lost, such a tooth should be restored with a post and core, onto which a full crown is cemented. Earlier, the standard option for rebuilding an endodontically treated broken tooth was by using the cast metal post and core. However, today, various tooth-colored posts are available in the market.3 Today, prefabricated post systems are preferred as they are cost-effective, and, in some situations, less invasive than customized post and core systems, and moreover, they are less time consuming.4 Therefore, the purpose of this in vitro study was to compare the fracture resistance of endodontically treated teeth restored with two different post systems, namely, carbon posts and glass fiber posts.