ROOT CANAL OR ENDODONTICS
Root Canal Therapy
Root canals are needed when decay and bacteria are present for too long without treatment. At a certain point, this decay makes it to the pulp inside the tooth. The pulp includes nerves, and, therefore, infection generally causes a lot of pain. Other signs include bleeding, swelling, and bad breath.
During the root canal treatment, an opening is made in the tooth. Then, dead tissue is removed, and the root canals are cleaned and disinfected. The canals are sealed to prevent them from being infected again, and the tooth is filled. Finally, a dental crown is used to restore the surface of the tooth.
Root canal therapy can save your teeth. Without a root canal, the tooth may need to be extracted and replaced with an artificial tooth such as an implant.
More information can be found here https://www.aae.org/patients/root-canal-treatment/what-is-a-root-canal/.