What is a typical result of successfully treating a root canal?

Successfully treating a root canal involves removing the infected or inflamed pulp from inside the tooth, which serves to eliminate the source of infection. Once the canal is cleaned, shaped, and filled, the treatment aims to restore the health of the tooth, ultimately leading to the resolution of any infection present in the root system. This process allows the body to heal, and the tooth can then continue to function properly in the dental arch.

While other options relate to outcomes associated with dental treatments, they do not accurately reflect what occurs during a root canal procedure. Complete tooth extraction is contrary to the goal of a root canal, which is to save the tooth. Formation of new enamel does not happen as a direct consequence of this treatment. Similarly, while treating the root canal may lead to a decrease in tooth sensitivity over time, it is not the primary or most immediate result of the procedure compared to the direct elimination of infection. Hence, the treatment’s main success is genuinely marked by the resolution of infection, making it the best answer.