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An Endodontist Explains "What Is A Root Canal"?

We use our teeth so much during the day that we often forget how complex they are, that is, until we feel pain. Underneath each tooth is a soft tissue area, called the pulp, that carries nerves, veins, arteries, and lymph vessels. These are all channels of connection between our teeth and the rest of our bodies. These connections run from the top of the tooth down to its root by way of a root canal. Each tooth has at least one root canal, but may have as many as four or five, depending on the number of roots below that tooth.

How Do Root Canal Problems Occur?

When a tooth is cracked or has a deep cavity, saliva and the bacteria in it can get to the tooth pulp. An infection is likely to result and, without root canal treatment by endodontist, the pulp will die. The infection may cause pus to gather at the tip of the root, creating an abscess that can attack the bone. The abscess must be cleaned up to prevent deterioration, and the damaged tooth pulp must be removed by a root canal dentist.

Problems That Cause Root Canal Pain

When the pulp is damaged or dead, pressure is created inside the tooth. That pressure creates pain when you bite down on the tooth, chew on it, or when it feels the heat or cold of food and drinks.

Saving the Tooth with a Root Canal

Repairing the root canal is the way to save the entire tooth. The other alternative is to pull the tooth entirely. However, leaving that space empty may create other problems, like making chewing and biting more difficult. Teeth may also shift their position if missing teeth are not there to hold the space. If you decide to have the dentist pull the tooth and replace it with a denture or bridge, the cost will be significantly more than the cost of a root canal procedure.

What Is Root Canal Therapy and How Is It Performed?

To prevent further damage, ease any discomfort, and save the tooth, your dentist or endodontist (a dentist specializing in treating the tooth pulp) will perform a root canal procedure. Without endodontics therapy, tooth loss will occur. This therapy requires one or more dental visits to complete, depending on the extent of the infection.

Endodontists will first administer medication to make sure you will be comfortable. An opening is made in the top of your tooth and the diseased pulp removed. The root canal will be thoroughly cleaned and enlarged so it can be filled with a material that prevents bacteria from re-entering. Your tooth will not be permanently sealed until the infection has cleared. When the root canal is filled and the infection is gone, your tooth may need to be covered with a crown that will look and function just like your original tooth.

Root canal therapy is a tooth-saver. It has a very high rate of success (more than 90%)! To follow up, your dentist or endodontist will make sure that the root canal is intact and that the infection has cleared.

Endodontists recognize that root canal therapy has an image problem. Part of this is due to the type of treatment available more than a half-century ago when local anesthetics weren't as effective. It was also before the advent of antibiotics used to control the infection and pain associated with it. Research and technology now offer your endodontist valuable ways to reduce patient pain and anxiety during the root canal procedure. Probably, the greatest factor contributing to this negative perception is that people wait until they are in pain before seeking treatment. Obviously, regular visits are an important preventive measure.

With modern therapy, root canal treatment can be approached with confidence -- getting to the root of the problem, but without the pain.

By Brian J. Gray, DDS, MAGD, FICO

The Endodontist and a Successful Root Canal Treatment

Many international scientific studies demonstrate that root canal treatment is generally successful and provides an excellent long-term prognosis when the dental surgery is properly performed utilizing sound biological and mechanical concepts. As with any clinical situation, there are factors that must be considered when discussing root canal procedure outcomes with your dentist or endodontist:

1. Root canal treatment has not always been as successful as it is today. Fortunately, the guiding principles of modern endodontics can now be utilized to deliver very predictable results over a patient's lifetime. Some of these principles were unknown or misunderstood in the past and, consequently, many teeth have had endodontics treatment based on concepts, techniques, and materials that are not considered optimal by today's standards. Even so, some of these teeth have given, and will continue to give, additional years of good service. In other instances, previously treated teeth exhibit bacterial leakage that may or may not be accompanied by clinical symptoms. Failing endodontically treated teeth can generally be successfully retreated by an endodontist using modern biological concepts, technologies, and techniques.
2. Root canal treatment can be successful even if a tooth is severely damaged by decay, trauma, or other destructive events. In cases such as this, it may be necessary to reinforce the tooth by placing a post into the root before a crown can be placed. In these situations, the root canal dentist must weigh risks versus benefits during the treatment planning process.
3. The success of root canal treatment is greatly enhanced when the tooth receives a protective restoration after completion of the treatment. When a protective crown is not placed, the root canal filling may leak or the tooth may develop additional decay or even fracture. Once a root fracture has occurred, there is generally no predictable treatment or dental surgery to save the tooth.
4. For an endodontic treatment to be successful, the periodontal supporting structures of the tooth must be healthy or capable of being returned to a state of health with periodontal treatment. Other specialty consultations may also be necessary depending on the findings in a particular situation.
5. To insure that root canal treatment is working, the particular tooth should be evaluated over time. Teeth are subject to enormous shifts in temperature (such as hot coffee vs. ice cream), tremendous mechanical loads (in pounds per square inch), and constant exposure to the bacteria in saliva. Periodic re-evaluation allows the dentist to examine the results of past treatments and to intervene early if new damage or breakdown is occurring.

As with any human endeavor, there are certain clinical situations in which dental surgery does not work even with the best efforts that modern dentistry can offer. Fortunately, these cases are infrequent and, if they occur, many of the teeth can be successfully retreated by an endodontist. A root canal procedure, when appropriately planned and well-performed by your dentist or endodontist, is the most cost-effective and predictable treatment alternative in most clinical situations.

+Jim Du Molin is a leading Internet search expert helping individuals and families connect with the right dentist in their area. Visit his author page.