Which of the following conditions can be treated with root canal therapy?

Root canal therapy is specifically designed to address issues related to the dental pulp, which is the innermost part of the tooth containing nerves and blood vessels. Pulpitis, the inflammation of the pulp, can occur due to deep decay, trauma, or repeated dental procedures. When the dental pulp becomes infected or inflamed, it can lead to severe pain and the potential loss of the tooth if left untreated.

Root canal therapy involves removing the diseased or inflamed pulp, cleaning the inner spaces of the tooth, and sealing it to prevent future infection. This procedure helps save the tooth and alleviate pain, making it directly applicable for treating conditions like pulpitis.

In contrast, conditions like gingivitis and periodontitis are primarily related to gum disease affecting the supporting structures of the teeth rather than the pulp itself. Malocclusion refers to a misalignment of teeth and does not result from pulp issues. Therefore, the treatment processes for these conditions differ significantly from that of pulpitis, reinforcing why root canal therapy is focused on the specific needs presented by pulpitis.