Endodontics, or root canal treatment, is used when the soft tissue inside the teeth containing the nerve, blood and lymph vessels(pulp) is traumatised.
You need root canal treatment if you have sensitivity to cold or hot, pain that starts during chewing or at night, discolouration of your tooth or swelling on your jaws or nearby lymph nodes.
Unkempt hygiene, deep cavities or breakage on the tooth causes infection in this soft tissue inside the tooth. If this soft tissue isn’t removed, it causes further infection in the surrounding area. To prevent this, the pulp needs to be removed and remaining canal should be filled with the appropriate materials.
With modern anesthesia, pain during treatment is prevented. Infected pulp tissue is removed, then remaining canals are shaped and filled. That way, the tooth will be desensitised to stimuli.
Root canal treatment is followed by a filling or other restorations depending on the situation of the tooth.