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Root canal therapy fits under the special dentistry area known as endodontics. Endodontics literally means dentistry within the tooth itself. The procedure treats disorders of the pulp (the soft tissue inside the crown and roots made up of blood vessels, nerves and lymph vessels that help keep your tooth nourished). Endodontic treatment restores your tooth to a comfortable state by removing the damaged tissue and replacing it with a substance that will help preserve the function of the tooth. There are many reasons that a root canal may be needed but the most common cause is the carious process (the uncontrolled process of tooth decay). When tooth decay begins, it penetrates the outer layer of enamel and creates a cavity. If that process is not stopped, the decay will continue toward the nerve of the tooth. Other causes include a fracture that exposes the pulp, traumatic injury such as a blow to a tooth, a cracked or loose filling or repeated fillings in a tooth and occasionally from periodontal (gum) disease. Regardless of the initial cause, the tooth pulp becomes irritated and an abscess (infection) can occur. Bacteria from your saliva grow within the tooth pulp, causing pressure and
pain. Eventually the pulp dies, causing the bone around the tooth to be destroyed.

All dentists receive some training in endodontic therapy, however, you may be referred to an endodontist, a specialist who limits his/her practice to root canal procedures. The
sooner you get treatment the better: your risk of losing the damaged tooth is decreased, your pain can be relieved, and your dentist may prevent infection from spreading further.

A Tooth Tour

If you learn how healthy teeth can become damaged, you will understand why root canal therapy may be the best treatment to restore your mouth to a healthy state.

An outer enamel layer and the dentin inside protect the tooth’s underlying structures
and prevent bacteria from entering the tooth. The pulp helps nourish the tooth via blood and lymph vessels that carry nutrients and waste to and from the tooth, and gives the tooth feeling via the nerves. The root canals house the pulp and extends to the underlying bone.
The bone holds the tooth with the help of tiny periodontal ligaments attached to the roots. The pulp tissue enters and exits through openings at the root tips. Bacteria can invade your tooth through a loose filling, a cavity, or a crack.
Your pulp becomes inflamed and infected as it is attacked by bacteria. Eventually, the bacteria may destroy the pulp. The inflammation and infection spread down the root
canal, often causing sensitivity to hot or cold foods, throbbing, aching, or pain when you chew. Your bone may become infected and abscessed as the bacteria escapes though the root openings. the bone breaks down, and your periodontal ligaments may swell and loosen your tooth.

Generally, the first visit includes an overall assessment of your child’s teeth and gums. Your dentist may want to take x-rays to examine facial bones and search for hidden decay. They may also recommend a cleaning and fluoride treatment. You can consider bringing your child to see a dentist as early as 6 months of age but it is recommended that their first dental visit be no later than age 1. Preparing for these early experiences reduces the likelihood of your child becoming dental phobic.

  • Choose your dentist carefully. Assure their office  promotes a positive environment that makes both you and your child feel comfortable.
  • Explain to your child what to expect during their initial visit. You may want to ask your dentist what procedures will be done ahead of time, so that you can prepare your child properly for each stage of their visit.
  • Often the process of cleanings and exams is more frightening than the dentist. Consider having your child watch you get a cleaning or exam before it is their turn.
  • Pick a time of day when your child is well rested.
  • Children are intuitive. Be careful not to pass on your own fears or anxieties about dental visits to your children. Assure you are positive and prepared for the experience.
    After their initial visit, it is recommended that children visit their dentist every 6 months.
    Establishing good dental habits and positive experiences early, is important for your child's long-term dental health.

CARE FOLLOWING TREATMENT

Once the root canal treatment has been completed, you should be aware of the following considerations:
• Discolouration - occasionally an endodontically treated tooth may undergo a change in colour.While this is of no great medical concern, you may be interested in having the tooth bleached. Be sure to ask your dentist about tooth bleaching.
• Brittleness - a non-vital (endodontically treated) tooth is more brittle than a vital one, and is more susceptible to fracture. Therefore, we recommend that your root canal teeth be crowned (capped) following treatment. Occasionally a tooth that has under- gone endodontic treatment fails to heal or pain continues despite therapy. Some of the special complications that can occur include accessory root canals (large side canals coming off the main canal that cannot be cleaned out), badly curved or cracked roots and narrow canals that prevent thorough cleaning and sealing of the damaged tooth. Sometimes, for unknown reasons, tissues simply fail to heal or a tooth that initially responds to root canal therapy becomes painful or diseased months or years later.
Despite the cause, retreatment may be necessary to save the tooth. During retreatment, the tooth is reopened and the canals are cleaned, filled and sealed again. There are, of course, no guarantees that the procedure will be successful but your endodontist can discuss with you the chances of success before the tooth is retreated.
Extraction is the only alternative to retreatment and unless the tooth is replaced with an artificial one (an expensive procedure), adjoining teeth will shift, interfering with biting and chewing. Loss of a tooth can also lead to periodontal disease and loss of additional teeth.

 

 
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