Root canal therapy is an advanced dental treatment used to save teeth in pets when the inner pulp—the living tissue composed of nerves, blood vessels, and lymphatics—has been damaged or infected. Trauma is the most frequent cause of endodontic disease in dogs and cats, and studies show that a significant number of pets fracture their teeth from accidents or from chewing objects that are too hard. When a fracture exposes the pulp, or when a tooth becomes non-vital and discolored, bacteria can enter the root canal and create a painful infection. Although these conditions are often uncomfortable, most pets hide signs of oral pain, making early diagnosis difficult. Over time, untreated endodontic disease may lead to abscess formation around the root tips, sometimes causing facial swelling or drainage either inside the mouth or through the skin.
To eliminate infection within an affected tooth, the diseased pulp must be removed. This can be done either through extraction or by performing root canal therapy. For many teeth—especially important “strategic” ones like canines and large chewing teeth—a root canal is often the preferred option. The procedure has a very high success rate and allows the tooth to remain functional, supporting normal eating, play, and long-term oral health. Compared with extractions, root canal therapy generally results in far less postoperative discomfort and carries a lower risk of complications such as wound breakdown. During treatment, the infected pulp is removed, the canal is thoroughly cleaned, and the space is sealed to prevent bacteria from re-entering the tooth.
Because discolored teeth have been found to be non-vital in the vast majority of cases, and fractures with pulp exposure inevitably lead to infection prompt evaluation of the affected tooth is essential. If your pet has a broken, discolored, or suspicious-looking tooth, a veterinary examination is recommended to determine whether root canal therapy may help preserve comfort, function, and long-term dental health.Extraction remains an alternative for teeth that cannot be saved or when root canal therapy is not appropriate for a particular pet.