10 FAQs About Root Canals

Reviewed by Dr. Matthew Young, DDS

Reading time: four minutes.

Many people have questions and concerns about root canals.

There are a lot of myths and misconceptions out there, which can make this dental procedure seem intimidating.

In this blog, we answer the most common questions about root canal treatments, so you don’t have to wonder or worry.

Table of Contents

How do you know if you need a root canal?

If you experience severe tooth pain, deep decay, or sensitivity that doesn’t go away. Other signs include swollen gums, a persistent pimple-like bump on the gums, or a noticeable change in tooth appearance. These symptoms often mean that the dental pulp inside the tooth is infected or damaged.

Are root canals painful?

No, root canals are typically not painful. Modern techniques and anesthetics make the procedure comfortable and manageable. Most patients report relief after the treatment because it addresses the source of the pain. Your dentist will use a local anesthetic to numb the area and ensure a pain-free treatment.

Can I smoke after a root canal?

It’s best to avoid smoking for at least 72 hours after the procedure. It will slow down the healing process and increase the risk of infection. Tobacco products hinder proper blood circulation, which is essential for recovery. If you want the best chance for a successful recovery, it’s wise to limit or quit smoking until you are fully healed.

How long do root canals take?

The duration of a procedure varies but typically takes 60 to 90 minutes. A canal without complications can be completed in about 1-2 hours, while more complex cases with curved canals or extensive decay may require multiple appointments. Your dentist will outline your specific treatment timeline during your consultation.

Are root canals bad for you?

No, root canals are a safe and effective dental procedure. In fact, they are designed to save your natural tooth and prevent tooth loss. The treatment removes infected pulp, seals the tooth, and restores its functionality. A healthy tooth means better oral hygiene, less risk of infections, and a stronger smile.

Who does root canals?

Root canals are performed by a dental specialist called an endodontist. Endodontists have advanced training in endodontic treatments and specialized tools for treating the pulp chamber, ensuring that procedures are done efficiently and effectively. After the root canal, you will be referred back to your dentist for the dental crown (if needed).

Can root canals cause cancer?

No, they do not cause cancer. This is a common misconception. Root canal procedures are a safe dental treatment designed to remove infected pulp and save your natural tooth. There is no scientific evidence linking root canals to cancer. Maintaining good oral health prevents complications and ensures overall wellness.

Why do root canals fail?

Canals can fail if the tooth develops a new infection, if a filling material leaks, or if hidden accessory canals remain untreated. Inadequate cleaning, poor sealing, or decay between visits can also compromise the procedure. Regular dental check-ups help ensure that any issues are addressed before they become serious problems.

Why are root canals so expensive?

The cost of this treatment reflects the complexity of the procedure and the materials involved. Costs include specialized dental instruments, the expertise of an endodontist, high-quality filling materials, and necessary follow-up treatments. Dental insurance policies may help cover some of these costs, but it’s always a good idea to check your coverage details.

What should I do after a root canal?

After the treatment, follow your dentist’s instructions carefully. Avoid hard or chewy foods until your follow-up visit. Practice good oral hygiene by brushing twice daily, flossing, and rinsing with antiseptic mouthwash to maintain a healthy smile.

Learn More About Your Oral Health

If you have questions about your dental health or think you might need a root canal treatment, don’t wait. Visit us at Young Dental SF Group in San Francisco, CA to get personalized care and expert advice.


📞 To book an appointment at our dental office in San Francisco, CA call (415)-392-8611 or complete the online inquiry form.

📍Visit us at 490 Post St STE 830, San Francisco, CA 94102

Let our dental specialists help you keep your teeth healthy and your smile strong with expert care and treatments.