Root canal treatment
is done to repair and save badly infected or decayed tooth. It is needed when the soft tissue inside the tooth structure becomes inflamed or infected.

Once the decay erodes the first two layers of tooth, that is, enamel and dentin, infection then reaches the nerve and pulp of tooth which then causes pain. If left untreated, infection may spread beyond ends of roots of tooth. Bone loss may also occur around the tooth
which may lead to pus formation or an abscess. 
 
When Root Canal Treatment May Needed?
  • In case of severe toothache specially while chewing.
  • Swelling of gums near the aching tooth.
  • Prolonged sensitivity to hot or cold.
  • Fractured or broken tooth.
Root canal treatment is a good treatment option to save the infected tooth. Otherwise the tooth may have to be extracted, and it is always better to keep the natural tooth.