A root canal is performed when the soft inner part of a tooth, known as the pulp, is injured or becomes inflamed or infected.
The crown of the tooth — the part you can see above your gums — can remain intact even if the pulp is dead. Removing injured or infected pulp is the best way to preserve the structure of the tooth.
Common causes of damage to the pulp include:
The most common symptoms of damaged pulp include pain in your tooth, and swelling and a sensation of heat in your gums. Your dentist will examine the painful tooth and take X-rays to confirm the diagnosis.
A root canal is considered a restorative procedure. Most people who undergo the procedure are able to enjoy the positive results for the rest of their lives. Still, how long results last depends on the way you take care of your teeth.
Just as the rest of your teeth depend on good oral hygiene habits, your restored tooth requires regular brushing and flossing as well.
The most common symptoms of damaged pulp include pain in your tooth, and swelling and a sensation of heat in your gums. Your dentist will examine the painful tooth and take X-rays to confirm the diagnosis.
A root canal is performed in a dental office. When you arrive for your appointment, a technician will escort you to a treatment room, help you get situated in a chair, and place a bib around your neck to protect your clothes from stains.
The dentist will place a small amount of numbing medication on your gum near the affected tooth. Once it has taken effect, a local anesthetic will be injected into your gums. You may feel a sharp pinch or a burning sensation, but this will pass quickly.
You’ll remain awake during the procedure, but the anesthetic will keep you from feeling any pain.
When your tooth is numb, the endodontist or general dentist will make a small opening in the top of the tooth. Once the infected or damaged pulp is exposed, the specialist will carefully remove it using special tools called files. They’ll be particularly careful to clean out all the pathways (canals) in your tooth.
Once the pulp has been removed, the dentist may coat the area with a topical antibiotic to ensure that the infection is gone and to prevent reinfection. Once the canals are cleaned and disinfected, the dentist will fill and seal the tooth with a sealer paste and rubber-like material called gutta-percha. They also may prescribe you oral antibiotics.
The dentist will end the procedure by filling the small opening in the top of the tooth with a soft, temporary material. This sealant helps prevent the canals from being damaged by saliva.
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