Root Canal Therapy

Root Canal Treatment - is it safe?

"I know someone who had one of those, and it never worked - she had to have the tooth out anyway."

We all hear horror stories about root canal treatments - so let's look at the facts.

What is root canal treatment?

Your dentist uses root canal treatment to find the cause and then treat problems of the tooth's soft core (the dental pulp). Years ago, teeth with diseased or injured pulps were removed. Today, root canal treatment has given dentists a safe way of saving teeth.

What is the dental pulp?

The pulp is the soft tissue that contains nerves, blood vessels and connective tissue. It lies within the tooth and extends from the crown of the tooth to the tip of the root in the bone of the jaws.

What happens if the pulp gets injured?

An abscessed (infected) tooth can be caused by tooth decay.  When the pulp is diseased or injured and can't repair itself, it dies. The most common cause of pulp death is a cracked tooth or a deep cavity. Both of these problems can let germs (bacteria) enter the pulp. Germs can cause an infection inside the tooth. Left without treatment, pus builds up at the root tip, in the jawbone, forming a "pus-pocket" called an abscess. An abscess can cause damage to the bone around the teeth.


Why does the damaged pulp need to be removed?

When the infected pulp is not removed, pain and swelling can result. Certain byproducts of the infection can injure your jaw bones. Without treatment, your tooth may have to be removed.

What does treatment involve?

Treatment often involves from one to three visits. During treatment, your general dentist or endodontist (a dentist who specializes in problems of the pulp) removes the diseased pulp. The pulp chamber and root canal(s) of the tooth are then cleaned and sealed.

Here's how your tooth is saved through treatment:

  1. First, an opening is made through the crown of the tooth.
  2. The pulp is then removed. The root canal(s) is cleaned and shaped to a form that can be filled.
  3. Medications may be put in the pulp chamber and root canal(s) to help get rid of germs and prevent infection.
  4. A temporary filling will be placed in the crown opening to protect the tooth between dental visits. Your dentist may leave the tooth open for a few days to drain. You might also be given medicine to help control infection that may have spread beyond the tooth.
  5. The temporary filling is removed and the pulp chamber and root canal(s) are cleaned and filled.
  6. In the final step, a gold or porcelain crown is usually placed over the tooth. If an endodontist performs the treatment, he or she will recommend that you return to your family dentist for this final step.


How long will the restored tooth last?

Your restored tooth could last a lifetime, if you continue to care for your teeth and gums. However, regular checkups are necessary. As long as the root(s) of a treated tooth are nourished by the tissues around it, your tooth will remain healthy.

Are there any problems with this treatment?

An endodontically treated tooth can last many years.  Unfortunately, not all do last forever.  Sometimes the tooth breaks, or cracks, and other times the tooth may not be totally protected with a crown.  This makes the tooth more vulnerable to fracture and eventual failure.  Sometimes secondary infection returns, and the tooth may become symptomatic again.  However, usually the treatment is long lasting, and extremely effective.