Sometimes the nerve inside our tooth may become inflamed or infected. This often results in pain in the form of a toothache and in cases where it is left untreated for a while, an abscess may form. The usual causes of nerve inflammation or infection are tooth decay, gum disease, fracture, crack tooth, trauma or previous extensive dental work.
Root canal treatment is aimed to relieve the toothache by removing the nerve and blood supply of the affected tooth and eliminating any infection in the canals. With a local anaesthetic, the treatment is often painless. After final restoration, the tooth will be able to function like any other tooth.