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Root canal FAQs

All of your common root canal questions answered.

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What’s a root canal?

A root canal is a dental procedure that treats infected or damaged tooth pulp and nerve tissues. It's necessary when the pulp becomes infected or inflamed due to deep decay, repeated dental procedures, cracks, or chips. During the procedure, the dentist removes the damaged pulp, cleans the tooth's interior, and seals it with a filling or crown. Performed under local anesthesia, modern root canals are relatively painless and crucial for saving teeth that might otherwise require extraction, thus maintaining dental health and preserving natural smiles.

Explore common root canal FAQs

Root canals are typically performed by an endodontist, who is a dental specialist trained in diagnosing and treating issues related to the dental pulp and roots of teeth. However, general dentists can also perform root canal treatments if they have the necessary training and experience. For more complex cases, an endodontist's expertise is recommended to ensure the best outcome.

Reducing the risk of a root canal starts with maintaining excellent oral hygiene. Brush your teeth twice a day, floss daily and use an antimicrobial mouthwash. Regular dental check ups and cleanings at Aspen Dental help catch any issues early. Eating a balanced diet, reducing sugary snacks, and staying hydrated also play crucial roles in keeping your teeth healthy and strong.

A root canal is often needed when the pulp inside your tooth becomes infected or inflamed. This can happen due to deep tooth decay, repeated dental procedures on the tooth, or trauma to the tooth, such as cracks or chips. Left untreated, these dental issues can lead to severe pain and even abscesses. 

Root canals are not bad for you; in fact, they are beneficial. The procedure removes infected or damaged tissue inside your tooth, relieving pain and preventing further infection in the root. Root canals help save your natural teeth and maintain your oral health, allowing you to continue enjoying a healthy, functional smile.

A root canal procedure cleans out the infected or inflamed pulp from inside your tooth. The inside of the tooth is then disinfected, shaped, and filled with a biocompatible material. This process helps save the tooth, prevent further infection, and restore its function.

During a root canal, a small opening is made in the crown of the tooth. Through this opening, the endodontist or dentist removes the infected pulp, cleans and shapes the root canals, and fills them with a biocompatible material. The tooth is then sealed, and a dental crown is usually placed on top to restore its strength and appearance. The result is a tooth that looks and functions like your natural teeth.

Root canal procedure

A root canal begins with the dentist or endodontist numbing the area around the affected tooth with local anesthesia. Once numb, a small opening is made in the crown of the tooth to access the infected or damaged pulp. The pulp is carefully removed, and the inside of the tooth is cleaned and shaped. The cleaned space is then filled with a biocompatible material called gutta-percha. Finally, the opening is sealed, and a crown is usually placed on top to restore the tooth’s strength and function.

The duration of a root canal procedure can vary depending on the complexity of the case. Generally, a root canal can take between 60 to 90 minutes to complete. Some cases may require one or two visits to finish the procedure, especially if the tooth has multiple roots or severe infection.

Root canals should not be painful. With modern techniques and local anesthesia, the procedure is designed to be as comfortable as possible. Most patients report feeling less pain than expected during the procedure. Any discomfort afterward can typically be managed with over-the-counter pain relievers.

A root filling is the material used to fill and seal the cleaned and shaped root canals after the infected or damaged pulp has been removed. This is usually a biocompatible material called gutta-percha, which helps prevent reinfection.

How do you know if you need a root canal?

Persistent tooth pain

Toothache and pain that lingers, especially when chewing or applying pressure. 

Sensitivity to temperature

Sensitivity to hot or cold that lasts even after the stimulus is removed.

Discoloration of the tooth

Darkening of the tooth, indicating possible nerve damage.

Swelling and tenderness

Swollen gums around the affected tooth, accompanied by tenderness or a pimple-like bump on the gums.

Deep decay or damage

Severe decay or damage to the tooth that has reached the pulp, where the nerves and blood vessels are housed.

What to expect after getting a root canal

Root canal treatment (RCT) is performed by first numbing the area around the affected tooth with pain management treatments. The dentist then makes a small opening in the crown of the tooth to access the pulp chamber and root canals. The infected or damaged pulp is removed, the canals are cleaned and shaped, and then filled with a biocompatible material. The tooth is sealed, and a crown is typically placed on top to restore its function.

A properly treated and restored tooth with a root canal can last a lifetime with good oral hygiene and regular dental check-ups. The longevity of the root canal depends on the placement of a proper restoration, like a crown, and maintaining overall oral health.

Throbbing pain after a root canal can usually be managed with over-the-counter pain relievers like ibuprofen or acetaminophen. Applying a cold compress to the outside of your cheek can also help reduce swelling and discomfort. If pain persists, contact your dentist for further advice.

Yes, you can drive after a root canal procedure. The pain management treatment used during the treatment typically does not impair your ability to drive. However, if you received sedation, you may need to arrange for someone to drive you home.

After a root canal, stick to soft foods such as yogurt, applesauce, smoothies, mashed potatoes, and scrambled eggs. Avoid hard, crunchy, or sticky foods that could damage the temporary filling or tooth.

It is advisable to avoid smoking after a root canal. Smoking can impair healing and increase the risk of complications and infection. If possible, try to quit smoking to ensure the best outcome for your dental health.

A root canal-treated tooth without a crown, that needed one after a root canal treatment, may last a short time, but it is at a higher risk of fracture and reinfection. It is highly recommended to get a crown placed soon after the root canal to protect and strengthen the tooth.

Healing from a root canal typically takes a few days to a week. You might experience mild discomfort or sensitivity during this time. Full recovery and the final restoration with a crown will help ensure long-term success.

Yes, it is generally recommended to place a crown on a tooth after a root canal to protect it from fractures and ensure long-term success.