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What is a Root Canal?

Root canal includes drilling and capping teeth whose nerve areas have become infected.
A root canal involves removing some of the soft tissue within a tooth.
Narcotics may be prescribed for pain control following a root canal.
Article Details
  • Written By: Tricia Ellis-Christensen
  • Edited By: O. Wallace
  • Last Modified Date: 11 August 2014
  • Copyright Protected:
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A root canal refers to the soft tissue inside a tooth, which usually contains the nerves to the tooth. This tissue is located primarily below the gum in the “roots” of the tooth. However, most people who refer to a root canal mean they are having a dental procedure that may remove some of this tissue and its nerves if the tooth has become infected or abscessed.

The precise term for a root canal procedure is a pulpectomy or a pulpotomy. However, the term root canal is so often used, that it will be used in this explanation for greater clarity.

Frequently, particularly among people with adult teeth, a tooth will begin to hurt. One might also notice that the gum around the tooth appears swollen. If the pain is specific to one tooth, the danger is that the soft tissue of the tooth may have become infected.

In some cases, a course of antibiotics can treat the infection without further intervention. More often, however, the tissue inside the tooth must be removed in order to prevent future pain. This root canal procedure is often more feared than necessary. With proper local anesthesia and pre-treatment for infection it takes about the same time as getting two or three fillings done at once.

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Sometimes a dentist will perform a root canal procedure on only one root of the tooth. At other times, removal of the soft tissue in all the roots is required. Once the tissue is scraped out and removed, the roots of the tooth are filled with a slightly flexible filling material.

After the root canal is performed, patients can expect to experience mild discomfort for a few days. This is often easily treated with ibuprofen or acetaminophen. A dentist can prescribe a narcotic pain relieve like codeine if pain is not adequately addressed. One will usually be asked to eat soft foods for a day or two.

Continued pain occurring three to four days after a root canal may suggest that not all tissue was removed or infection still persists. One should contact one’s dentist if pain continues after the third day. As well, one should finish any prescribed antibiotics even after the dental procedure to prevent reinfection.

Often performing a root canal means that much of the top of the tooth has been destroyed. This means that within a few weeks of the root canal, a patient will also require a crown. Crowns replace the portion of missing tooth with porcelain, silver or gold filling.

In rare cases, a root canal may only result in a large filling of a permanent nature. This is more rare, and most dentists prefer to use a crown to fit it perfectly to the missing portions of the tooth.

For some, having to get a crown is terrible news, and means a dental procedure beyond their means. In the US, a crown can cost about 800-1000 US dollars (USD). Dental insurance may pay half that, and most dentists will not accept payments. Inability to pay for a crown often means teeth are lost, because the tooth is much more vulnerable after a root canal, and the temporary filling of the canals will only last for a short period of time.

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Discuss this Article

anon6031
Post 2

Crowns are usually placed not because much of the tooth is destroyed when the root canal is done, but because removing the blood supply to the tooth causes it to dry out and makes it brittle. The crown protects this dry, brittle tooth.

anon399
Post 1

The root canal is not the tissue inside but the canal that contains the nerve and tissue etc. The term root canal treatment is used to refer to the cleaning out and filling of the canal, but it is usually shortened to root canal. In root canal treatment, all canals in all roots are cleaned out (pulpectomy)otherwise some infection would remain. The only time you partially remove the tissue is when you suspect the nerve is still alive (pulpotomy)and this is quite a different procedure.

Moderator's reply: Thank you so much for sharing your expertise with our users! Very helpful addition to the article!

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