What happens if you leave a tooth that needs root canal?
Emily Sparks
Published Jan 22, 2026
The only option apart from a root canal is extraction of the tooth. If you do not undergo treatment or get the tooth removed, then the consequences can be severe. If left untreated, the bacterial infection can spread to the jaw, brain, blood and rest of the body.
What happens if you don't treat a tooth that needs a root canal?
The Consequences of Avoiding a Root Canal
If the infection is concerning and left untreated it can cause you to lose your tooth or part of your jaw or even lead to dental abscesses or a life-threatening stroke, sepsis, or heart attack. As the infection progresses so will the pain which will be excruciating.
What happens if you delay a root canal?
Delaying a root canal procedure can cause even more discomfort down the line as the infection is likely to spread. Leaving an infected root canal system untreated can result in an abscessed tooth, the pain of which can be incapacitating—and complications that can be serious, even life-threatening.
Can a tooth that needs a root canal heal itself?
The long answer is fairly straightforward. The infected tissue inside a tooth cannot heal by itself and will only get worse over time if left untreated. Even if you experience no pain, you should still seek treatment. Having no pain in the tooth does not mean the pulp has healed itself.
How long can a tooth last that needs a root canal?
Given that the tooth is often quite sick before the procedure, it's fair to say these teeth are weaker than most of your other natural teeth. After a root canal, it may only last another 10-15 years. However, there are ways to help your tooth last for the rest of your life.
34 related questions foundHow can u tell if u need a root canal?
If you feel pain in your tooth while you're drinking or eating something hot or cold you might need a root canal. The sensitivity can manifest itself as a sharp pain or a dull ache, and if you can feel it for a longer period of time, even after you finish drinking or earing.
Can an old root canal become infected?
There are a number of causes of tooth infections. One of the most common causes is older root canals. When you have a root canal, your dental professional removes a nerve from the affected tooth. Unfortunately, bacteria can grow in that area, leading to an infection that your body struggles to fight off.
What can you do instead of a root canal?
An alternative to a root canal is a tooth extraction, in which your dentist can replace a damaged tooth with a bridge, partial denture, or implant. This can be an expensive treatment and usually requires several visits to your doctor. If you're a candidate for a root canal, you'll likely experience less pain over time.
Can I avoid root canal?
Root canals are performed when bacteria, introduced through a cavity or crack, compromise the nerves located inside the tooth. The bacteria cause an infection, which eventually kills the nerves. But root canals can be avoided, Teitelbaum says, in cases where the nerves are not yet infected.
Can I wait a week for a root canal?
Sealing the tooth is the last step and can be done on the same day. However, if your dentist determines that you need medication placed within the tooth to further eliminate any possible infection, they will usually wait a week before sealing your tooth.
Can I wait a month for a root canal?
You cannot afford to wait any longer. You are describing a tooth infection that is spreading. If you act quickly, a dentist might be able to save your tooth with root canal treatment. Otherwise, a dentist might need to remove the tooth.
Do I need a root canal if there is no pain?
You might still need a root canal even if you do not feel any pain because not all infection results in pain. The purpose of a root canal is to handle any infection that has developed in your tooth pulp, not just stop you from feeling pain. A root canal can save your infected tooth from having to be extracted.
What to do if you need a root canal and can't afford it?
Contact a few dental offices first to find out the cost of root canal treatment without dental insurance. Another option is to find a new dental insurance plan. You might be able to find a plan that provides more coverage.
Is it better to have root canal or extraction?
In most cases, root canal therapy is a better way to treat an infected tooth than an extraction. However, there are exceptions, such as if the tooth has suffered extreme damage. Your dentist will carefully analyze your oral health before making a treatment recommendation.
Can antibiotics prevent a root canal?
Although antibiotics will not be effective in lieu of a root canal, your provider may prescribe a preventive course of these medications following your root canal treatment. This is to reduce your risk of developing infection in the bone surrounding the tooth, which prophylactic antibiotics are very effective at doing.
Can antibiotics heal an infected root canal?
Most antibiotics like Amoxicillin are not viable to cure a root canal infection. Once the disease has reached its roots, it means the blood vessels with antibacterial defenses have broken down. Hence, antibiotics cannot penetrate inside the tooth into the root where the problem lies.
How can I avoid a root canal naturally?
If you are one of those people, read on for our top ten tips to avoid having to have a root canal down the road:
- Brush twice daily. ...
- Floss once daily. ...
- Avoid hard foods such as hard candies and lollipops. ...
- Weak teeth be wary. ...
- Back away from the ice! ...
- Wear a mouth guard at night. ...
- Wear a mouth guard while playing sports.
Does root canal infection show up on xray?
In the majority of cases, you will notice some type of symptom that indicates an infected root canal. Although, there are cases where there are no symptoms and the infection will only be found by your dentist on an x-ray.
How do I know if my tooth infection is spreading?
If you have a fever and swelling in your face and you can't reach your dentist, go to an emergency room. Also go to the emergency room if you have trouble breathing or swallowing. These symptoms may indicate that the infection has spread deeper into your jaw and surrounding tissue or even to other areas of your body.
Will xray show tooth infection?
A tooth that has an abscess at its root is generally sensitive to touch or pressure. Recommend an X-ray. An X-ray of the aching tooth can help identify an abscess. Your dentist may also use X-rays to determine whether the infection has spread, causing abscesses in other areas.
Why do dentists always want to do root canals?
Why are root canals necessary? Root canals are a simple procedure that are recommended to save damaged, natural teeth and prevent the need for dental bridges and implants. Root canals are necessary when the pulp, or soft tissue, inside the tooth becomes inflamed or infected, which could lead to an abscess.
How do you manage pain while waiting for a root canal?
Try these simple at-home remedies to ease the pain while you wait:
- Place ice over the area to soothe the tender nerve.
- Don't put pressure on the painful tooth.
- Take an over-the-counter pain reliever.
- Get an antibiotic if you have an infection.
- Try to rest and relax until your treatment.
Will a root canal stop tooth pain?
One of the most effective techniques for saving decayed or injured teeth is the root canal treatment.
Can root canal be done in one visit?
Modern tools and improved technology have made it possible to perform root canal in one visit. Also, the reasoning behind splitting the procedure into multiple sessions was to see if any flare ups occurred, and if not, it was sign you are ready for sealing.
How long can you go without a crown on a root canal?
It takes time for an infection to become evident – Some dental schools teach dentist to wait six months after root canal treatment before crowning a tooth. But a dentist doesn't always wait that long because each patient's case is different.