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
Will I Be Comfortable During My Root Canal Treatment?
The answer should be an emphatic "YES!" Fortunately, dentistry has developed new techniques for delivering local anesthetics painlessly. These techniques also assure that the anesthetics act more rapidly and produce a more "profound" level of anesthesia. Additionally, modern dental procedures utilize better technologies that are generally much less traumatic and invasive than those of the past. The result of these advancements is that patients should have minimal or no discomfort during the tooth numbing and/or treatment procedures. Root canal treatment should not cause pain, but rather relieve it and keep it from reoccurring. Unfortunately, dental pain may also have a psychological component, possibly stemming from a negative past experience, a story in the media, or even fear of the unknown. Sometimes these situations can prove challenging for the patient and the endodontist to control. Examples include:
- Patients who associate tooth pain with a past root canal procedure when, in fact, the pain they remember was experienced prior to their emergency visit. Oftentimes, this pain develops over a period of several hours to a few days and is allowed to build and worsen before seeking treatment. Once the patient seeks emergency care from a root canal dentist, the endodontics treatment should not be uncomfortable and should provide quick and certain relief from any painful symptoms stemming from root canal disease.
- Patients may become very anxious when being examined or treated dentally because the mouth is such an important part of the body and psyche. Some patients may feel anxious and vulnerable during a root canal procedure because of their positioning in the dental chair with members of the dental team working above them in such close and intimate proximity.
These and other distresses are real to the patient. Much of the time, however, the distress can be reduced or eliminated if the patient discusses it with the endodontist and gets understanding and reassurance. The doctor and the patient must work together in these situations to make certain that the patient feels as comfortable, trusting, and informed as possible in the dental environment. Most individuals can do this satisfactorily. If patients continue to feel significant distress, even after having these discussions with the dentists, they should be aware that there are therapeutic methods that can be used and for which they might be candidates. These may include:
- Oral sedation dentistry involves ingesting a sedative pill or liquid before the appointment. This can help anxious patients a great deal and make the treatment experience much less stressful.
- Nitrous oxide analgesia, known as "laughing gas," can be inhaled along with oxygen to make patients feel less anxious and more comfortable.
- Intravenous sedation can be administered in a dental facility by a specially trained and certified dental team or by a specially trained dental anesthesiologist. With intravenous sedation, patients are not asleep and they can still respond, but they will not feel or remember anything. This technique works very well in creating a pleasant experience for many anxious patients and is a good anesthetic method for more lengthy dental procedures.
- Hospital dentistry is conducted in an environment where a variety of anesthetic methods are available and can be used under the safest medical conditions. General anesthetic and intravenous sedation can both be utilized in the hospital setting.
These sedative techniques and medicines may also be helpful if particularly lengthy root canal treatment procedures are necessary in specific situations.
With all of the advancements in pharmaceuticals and in their delivery, there should be no need for any patient to delay endodontics treatment because of fear that the treatment will be painful.
By Clifford J. Ruddle, DDS, in collaboration with Philip M. Smith, DDS
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