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R - Root Canals (A to Z Challenge April 2014)

Root canal is a treatment to repair and save a badly damaged or infected tooth instead of removing it. The term "root canal" comes from cleaning of the canals inside a tooth's root.

A tooth's pulp tissue contains nerve fibers, arteries, veins, lymph vessels, and connective tissue. Each tooth's nerve enters the tooth at the very tip of its roots. From there, the nerve runs through the center of the root in small "root canals," which join up with the tooth's pulp chamber. Root canals are very small, thin divisions that branch off from the top pulp chamber down to the tip of the root. A tooth has at least one but no more than four root canals.

The infection is caused by bacteria that live in the mouth and invade the tooth when:

  1. tooth decay occurs
  2. fillings leak
  3. teeth are damaged by trauma, such as a fall.

Pain in the tooth is commonly felt when biting down, chewing on it and applying hot or cold foods and drinks.


 

A root canal is a procedure done to save the damaged or dead pulp in the root canal of the tooth by cleaning out the diseased pulp and reshaping the canal. The canal is filled with a rubberlike substance called gutta–percha or another material to prevent recontamination of the tooth. The tooth is then permanently sealed, with possibly a post and/or a crown made of porcelain or metal alloy. This enables patients to keep the original tooth and retain its function of chewing.


 

 

 

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