What is root canal treatment?
Underneath each tooth's outer enamel and inner dentin is an area of soft tissue called the pulp, which carries the tooth's nerves, veins, and arteries. Root canals are very small, thin passageways that branch off from the top pulp chamber and extend through the root to its tip.  A tooth can have multiple root canals.

Sometimes, the pulp inside the tooth becomes infected by disease or bacteria, or damaged by a traumatic injury to the tooth. An infected and untreated root canal can allow bacteria to cause a severe infection in the mouth that can spread to other parts of the body. In addition to staving off potentially harmful infections, root canal treatment can generally save your damaged tooth.

Root canal treatments typically affect the root tip or nerve of the tooth and the structures called the pulp chamber, pulp, and root canal. The procedure involves removal of diseased or damaged pulp inside the tooth, the cleaning, disinfection and reshaping of the inner canals beneath the tooth, and preparation of the tooth for later placement of a filling, and in most cases, an artificial crown made of porcelain or gold. The procedure enables you to keep most of your original tooth.

Root canal treatment usually takes one to three visits. Here is what normally occurs during a root canal procedure:

  • First, your gums are numbed with a topical substance and a local anesthetic is injected into the nearby area to completely numb your teeth and surrounding tissues.
  • A small sheet of rubber is placed over the surrounding area of the affected tooth in order to isolate it from surrounding teeth and prevent you from swallowing debris.
  • A small hole is made in the top of the tooth in order to access the pulp chamber, pulp and root canals. The pulp is removed, the pulp chamber cleaned, and the canals are cleared of debris and tissue while they are shaped and disinfected.  In certain instances, the canals may be filled right away with a final root canal filling material called gutta-percha, which is a rubber-like material used to prevent recontamination.  Depending on the circumstances, however, it may be necessary to fill the canals with an antibacterial medication, with the need to continue root canal therapy at an additional visit.  The tooth is then sealed with a temporary filling.
  • Once the root canal treatment is completed it is necessary to have the tooth permanently sealed and protected.  For anterior teeth, sometimes a permanent filling can be placed by the general dentist.  For posterior teeth (molars and premolars) and also some anterior teeth, it is necessary for the general dentist to place a crown to protect the endodontically treated tooth from fracturing.  Following a build-up of the tooth (sometimes a post is also needed in the tooth to retain the crown) the general dentist will sculp the tooth to receive an artificial crown and an impression of the tooth is then taken so that the crown can be made for placement over the affected tooth. In some cases, a temporary crown is placed over the tooth until the permanent gold or porcelain crown is made and cemented by your family dentist.

    Reasons for root canal treatment
    Root canal treatment is called for when the soft tissue inside the tooth's canals, also called the pulp, becomes inflamed or infected by bacteria. The most common cause of pulp death is a fractured tooth or a deep cavity, which can expose the pulp to the bacteria found in your saliva. A traumatic injury or blow to the tooth could cause swelling and inflammation of the tissues in and around the tooth, providing an opportunistic path, usually through a crack, for bacteria to collect. Cracks that develop in the tooth due to trauma during chewing or even repeated necessary dental procedures on the same tooth could lead to irritation of the pulp and possibly necessitate the need for endodontic therapy. An infected pulp can lead to swelling and possibly fever; left untreated, an infected pulp could leak harmful toxins from the root ends, leading to an abscess and erosion of the bone beneath the tooth.
    Post-treatment care
    A root canal procedure is designed to restore a damaged inner tooth, giving it the same lifespan as its original. With proper care following your procedure, your restored tooth should heal with about a 95% success rate. It is normal to feel some tenderness in the area over the next few days as your body undergoes the natural healing process. You may also feel some tenderness in your jaw from keeping it open for an extended period of time. These symptoms are temporary and usually respond very well to over-the-counter pain medications. It is important for you to follow the instructions on how to take these medications. Remember that narcotic medications, if prescribed, may make you drowsy, and at least eight hours should pass prior to operating dangerous machinery or driving a car after taking them. Your tooth may continue to feel slightly different from your other teeth for some time after your root canal treatment has been completed. However, if you have severe pain or pressure that lasts more than a few days, contact our office.