Root Canal – How Long Does it Take & Symptoms

SUMMARY
Key Takeaways
- A root canal is a treatment to remove an infection of the tooth pulp.
- You’ll need to check with your dentist to diagnose a root canal.
- You can avoid needing a root canal by brushing your teeth at least twice daily and tending to your oral hygiene consistently.
- The causes of a root canal vary, but practicing good oral hygiene is imperative to keep your teeth clean.
- Check with your dentist to learn more about the root canal procedure, cost and recovery, as it can vary by individual.
Table of Contents

This blog has been reviewed and approved by Dr Robert Lee, a dental professional of 35 years
LEARN MORE >Key Takeaways
- A root canal is a treatment to remove an infection of the tooth pulp.
- You’ll need to check with your dentist to diagnose a root canal.
- You can avoid needing a root canal by brushing your teeth at least twice daily and tending to your oral hygiene consistently.
- The causes of a root canal vary, but practicing good oral hygiene is imperative to keep your teeth clean.
- Check with your dentist to learn more about the root canal procedure, cost and recovery, as it can vary by individual.
Root Canal
Having teeth issues or pain in your mouth is no fun. If you have discomfort in your mouth or notice swelling at all, be sure to go to your dentist right away. When teeth issues are ignored, it can turn into bigger problems. If you don’t brush your teeth daily, bacteria can build up in your mouth and cause infections, which may require a root canal procedure to resolve. Regular dental visits and a solid oral health routine can help your teeth stay clean and cavity free and help avoid root canals. If you catch teeth problems early, you may prevent needing a root canal procedure. Having a root canal is typically more involved than filling a regular cavity. Have no fear, Oral-B has root canal information below and a variety of oral hygiene tips to help you take care of your teeth.
What is a root canal?

The American Association of Endodontists defines a root canal treatment as a dental procedure to remove inflamed or infected pulp on the inside of the tooth which is then carefully cleaned and disinfected, then filled and sealed.
Deep tooth decay or other injury can cause damage to or infection of the tooth pulp. That is why it is so important to maintain great oral hygiene routines and be sure to brush and floss your teeth daily! During a root canal, or endodontic treatment, the dentist removes the damaged or infected pulp and replaces it with a special filler, which helps maintain the remaining tooth structure.
If the pulp chamber of your tooth, which contains the nerve and blood vessels that provide nourishment, becomes infected by decay or damaged by trauma, root canal treatment is often the only way to save your tooth.
How Do You Know if You Need a Root Canal?
The dentist will officially need to look at your teeth and probably view x-rays to determine if a root canal is needed. You can check for root canal symptoms such as tooth pain, sensitivity or throbbing in your mouth, and gum or tooth tenderness. If you notice pus (a sign of an abscess) near a tooth, contact your dentist immediately. If you notice any irritations or food or drink sensitivities, be sure to check in with your dentist.
Root Canal Symptoms
Some indications of the need for root canal treatment may be:
- Spontaneous pain or throbbing while biting
- Sensitivity to hot and cold foods
- Severe decay or an injury that creates an abscess (infection) in the bone
What Causes a Root Canal?
There are many causes of a root canal and it's typically hard to pinpoint exactly what may cause the irritation. Not brushing your teeth daily or not flossing daily can cause bacteria to build up, which could lead to a root canal if it's not treated quickly. In addition, issues with your teeth can be caused by trauma, genetics, many cavities, age and more. You will know best how you treat your teeth and what your oral hygiene routines are. Practicing oral hygiene and using supportive electric toothbrushes, like Oral-B's product lines, can keep your teeth healthy and avoid bacteria build up.
How to Avoid Root Canals?
The best way to avoid needing a root canal is by taking care of your oral hygiene and cleaning your teeth daily. Regular dental cleanings will help keep your teeth in good shape and getting dental x-rays done annually can prevent cavities from growing or turning into an infection. By regularly seeing a dentist you can get expert advice about your teeth and oral hygiene and be aware of any problems that may grow into needing a root canal. You will want to take charge of taking care of your teeth too and ensure you make time to brush and floss daily!
Root Canal Procedure
A root canal is completed in five steps:
- After the tooth is anesthetized, an opening is made through the crown into the pulp chamber.
- The length of the root canals is determined.
- Unhealthy pulp is removed; canals are cleaned, enlarged and shaped.
- Canals are then filled and sealed. In cases where significant tooth structure is lost, a post may be added for structural support or to retain restorative materials.
- The tooth is sealed with a temporary filling. Usually, a gold or porcelain crown adds further protection.
The material used to fill your root canal is designed to last a lifetime, but the final restoration (such as a filling or crown) may need to be replaced eventually.
Root Canal Pain
During the root canal procedure, a patient typically does not experience pain because they have medications and numbing agents. However, before the root canal is diagnosed someone may experience various discomforts in their mouth. After the root canal, symptoms should minimize and if the problem is fixed, there should not be much pain, however, certain measures will need to be taken to heal.
Root Canal Recovery
Root canal recovery may vary from individual to individual, however, most recoveries average about 1-2 weeks. Check with your dentist how long your recovery may take though. After a root canal you may be prescribed other medications to take and your dentist will probably recommend not eating hard or sticky foods. Smoking and alcohol should be avoided as they can impair the healing process. Yet, if any new swelling or discomforts arise in your mouth after having a root canal, contact your dentist.
Root Canal Cost
Check with your dental insurance to determine how much a root canal may cost. Your dentist can give you an estimate too. Because dental insurance has different benefits and coverage, you will want to call your insurance to know your options and costs. The costs of a root canal also depend on which teeth are affected and how long it takes. Delta Dental, a national dental insurance provider, estimates root canals to cost the following:
- Root Canal – Front Tooth (approximately $620 - $1,100 Out-of-Network
- Root Canal – Premolar (approximately $720- $1,300 Out-of-Network)
- Root Canal – Molar (approximately $890 - $1,500 Out-of-Network)
Help Avoid Root Canals with Oral-B
Keep your teeth clean and cavity-free. Things like tooth decay and tartar happen when plaque forms on teeth as a sticky film. Plaque contains bacteria that feed on sugar from food and drinks. As these bacteria metabolize sugar, they release acids that can erode tooth enamel. This can lead to cavities and other problems. But help is just a toothbrush away. Here are a few suggestions to help establish a regular, effective routine.
- Try switching to an electric toothbrush, such as the Oral-B iO electric toothbrush, which protects teeth and gums from the leading causes of tooth decay, signs of early gum disease, and tooth loss.
- The right toothbrush head, such as the Oral-B iO Ultimate Clean brush head, that removes plaque and has different bristle lengths that reach deep into the spaces between your teeth, where plaque bacteria love to hide.
- Combine with a Crest toothpaste containing fluoride, such as Crest Pro-Health, which is formulated with stannous fluoride to help neutralize plaque bacteria.
- To further protect your mouth, swish with a rinse like Crest Pro-Health Multi-Protection Mouthwash, which kills 99% of germs that can cause plaque, gingivitis, and bad breath.
- To help prevent tooth decay and reduce your risk of developing gum disease by removing plaque, floss your teeth at least once daily with Oral-B floss, and make sure you get around every tooth. Another easy add-on to help your oral care and prevent cavities from forming is to use an Oral-B water flosser.
There is a connection between oral health and systemic health, so it’s important to treat conditions like tooth decay and gum disease as soon as possible. That’s why Oral-B, in partnership with Crest, is committed to championing oral health for all, conducting research and creating products to help with a wide range of oral health conditions. Oral-B products are scientifically proven to protect teeth and gums from the leading causes of tooth decay, gum disease, and tooth loss.
FAQs
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How long does a root canal take
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How much does a root canal cost
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Does a root canal hurt
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What are the negatives of a root canal?
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Do they put you to sleep for a root canal?
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When is it too late for a root canal?
Sources
- https://www.deltadental.com/us/en/protect-my-smile/procedures/root-canal/treatment-cost.html
- https://www.aae.org/patients/root-canal-treatment/what-is-a-root-canal/
Adam, R., et al. (2023). Brushing behavior changes and plaque removal with an electric toothbrush: A clinical trial. International Journal of Dental Hygiene, 21(4), 747-754.https://doi.org/10.1111/idh.12733
Biesbrock, A., et al. (2006). Assessment of treatment responses to dental flossing in twins. Journal of periodontology, 77(8), 1386–1391.https://doi.org/10.1902/jop.2006.050399
Chen, C. K., et al. (2017). Association between chronic periodontitis and the risk of Alzheimer’s disease: A retrospective, population-based, matched-cohort study. Alzheimer’s Research & Therapy, 9, 56.https://doi.org/10.1186/s13195-017-0282-6
Grender, J., et al. (2020). An 8-week randomized controlled trial comparing the effect of a novel oscillating-rotating toothbrush versus a manual toothbrush on plaque and gingivitis. International Dental Journal, 70, S7–S15.https://doi.org/10.1111/idj.12571
Grossi, S. G., et al. (1998). Periodontal disease and diabetes mellitus: A two-way relationship. Annals of Periodontology, 3, 51-61.https://doi.org/10.1902/annals.1998.3.1.51
Janket, S. J., et al. (2003). Meta-analysis of periodontal disease and risk for coronary heart disease and stroke. Oral Surgery, Oral Medicine, Oral Pathology, Oral Radiology, and Endodontology, 95, 559-569.https://doi.org/10.1067/moe.2003.107
Klukowska, M., et al. (2017). Clinical Effects of Stabilized Stannous Fluoride Dentifrice in Reducing Plaque Microbial Virulence I: Microbiological and Receptor Cell Findings. The Journal of Clinical Dentistry, 28(2), 16–26.
Zou, Y., et al. (2024). A meta-analysis comparing toothbrush technologies on gingivitis and plaque. International Dental Journal, 74(1), 146-156.https://doi.org/10.1016/j.identj.2023.06.009
Table of Contents
- Root Canal
- What is a Root Canal?
- How Do You Know if You Need a Root Canal?
- Root Canal Symptoms
- What Causes a Root Canal?
- How to Avoid Root Canals?
- Root Canal Procedure
- Root Canal Pain
- Root Canal Recovery
- Root Canal Cost
- Help Avoid Root Canals with Oral-B
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- FAQs
- Sources

This blog has been reviewed and approved by Dr Robert Lee, a dental professional of 35 years
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