Do I need a root canal if I have a toothache?
Daniel Moore
Published Jan 16, 2026
You may need a root canal if you experience: Pain when chewing, biting, or otherwise applying pressure to the tooth. Pain after encountering extreme temperatures, as with ice or hot coffee; the pain continues after the cause is removed. Swollen, tender gums around the tooth.
What are the signs of needing a root canal?
Root canal symptoms
- Persistent pain. Persistent tooth pain is one of the signs that you may need a root canal. ...
- Sensitivity to heat and cold. ...
- Tooth discoloration. ...
- Swollen gums. ...
- Pain when you eat or touch the tooth. ...
- A chipped or cracked tooth. ...
- Tooth mobility.
How does a dentist decide if you need a root canal?
The dentist will determine the need for a root canal through one or several of the following methods: x-rays, the cavity test, selective anesthesia (to identify where the source of pain is when the patient doesn't know), thermal and electric testing, or by tapping on the problem tooth.
Is it obvious if you need a root canal?
Tooth Pain
One of the most common signs you may need a root canal is severe tooth pain. More specifically, the pain you feel may not only be in the tooth but in the surrounding gum line as well. It's important to understand there are many different types of oral pain.
How painful is a root canal?
No, root canals are usually painless because dentists now use local anesthesia before the procedure to numb the tooth and its surrounding areas. So, you should feel no pain at all during the procedure. However, mild pain and discomfort are normal for a few days after a root canal is conducted.
45 related questions foundHow long can you have a cavity before it needs a root canal?
Some people have softer tooth enamel than others, which makes it easier for bacteria or acid to penetrate the tooth. As a broad timeline, on average, it can take anywhere from six months to four or five years before a cavity needs treatment. The conditions of your mouth change daily.
Can an xray show if you need a root canal?
Step #1: Performing Dental X-Rays
X-rays allow an endodontist to clearly identify damage to the pulp and determine the shape of your root canal. This technique also helps the specialist identify the location of a dental infection, and damage to the surrounding bone.
Why does tooth pain come and go?
Throbbing tooth pain that comes and goes can indicate tooth damage. A toothache can also be due to cavity or tooth decay. A person is also likely to experience throbbing tooth pain in the presence of tooth infection or inflammation, called pulpitis.
How long can a tooth infection go untreated?
In conclusion, the maximum period that an untreated tooth abscess can sustain is 12 months or more. But, such longevity is associated with dangerous complications such as sepsis or even death. Schedule your appointment with a dentist today and get the treatment on time!
Will an emergency dentist do a root canal?
If you're wondering whether an emergency dentist can do a root canal, the answer is “yes!” All dentists are trained to provide root canal therapy during their time at dental school. Any qualified emergency dentist at Enamel Dentistry is fully capable of performing a root canal.
How do you know if the tooth is infected?
Signs and symptoms of a tooth abscess include:
- Severe, persistent, throbbing toothache that can radiate to the jawbone, neck or ear.
- Sensitivity to hot and cold temperatures.
- Sensitivity to the pressure of chewing or biting.
- Fever.
- Swelling in your face or cheek.
- Tender, swollen lymph nodes under your jaw or in your neck.
Will the dentist pull an infected tooth?
Will a dentist pull an infected tooth? Yes, dentists routinely do pull infected teeth. They do this all of the time.
What happens if root canal goes untreated?
If a root canal is delayed for too long, the bacterial infection can spread to other areas of the mouth, putting the patient at risk for serious dental problems and other medical conditions. The infection can cause something called a dental abscess, which is a pus filled sac that requires immediate medical attention.
Which teeth are connected to the heart?
Heart – Upper and lower third molars (wisdom teeth)
What does a throbbing tooth mean?
Throbbing tooth pain is a sign that you might have tooth damage. Tooth decay or a cavity can give you a toothache. Throbbing tooth pain can also happen if there is an infection in the tooth or in the gums surrounding it. Toothaches are typically caused by an infection or inflammation in the tooth.
What is the best painkiller for toothache?
What are the best painkillers for toothache?
- Acetylsalicylic Acid (Aspirin) This is one of the most well-known and most widely used pain killers in the world. ...
- Ibuprofen or Ketoprofen. ...
- Acetaminophen or Paracetamol. ...
- Naproxen. ...
- Co-codamol. ...
- Diclofenac. ...
- Homeopathic options.
How do you stop a throbbing toothache?
How do I stop my tooth from throbbing?
- Rinse your mouth with warm salt water.
- Floss gently to remove built up plaque or food in between teeth.
- Apply a cold compress to your cheek or jaw.
- Take an over-the-counter pain medication, like ibuprofen (Advil, Motrin), acetaminophen (Tylenol), and aspirin can relieve minor pain.
Do you always need a crown after a root canal?
After a root canal, they can simply be restored with dental filling and left without a crown. However, if the front tooth has been discolored by decay, then a crown should be fitted for cosmetic purposes.
Can I wait 3 months to fill a cavity?
So if you have a cavity that needs a filling, don't delay treatment. The decay can continue to develop and cause additional damage to a tooth. You can end up needing something much more extensive, not to mention expensive, such as a root canal if you wait too long to have the decay addressed.
How long does it take for a cavity to destroy a tooth?
There's no specific timeline for how quickly a cavity can destroy a tooth. In most cases, severe damage to the tooth occurs because of years of unaddressed tooth decay. Fortunately, proper dental hygiene and regular dental checkups can save a tooth before it ever gets this bad.
Does a big cavity mean root canal?
The simple answer is that a cavity is decay nearer to the surface of the tooth, not in the root, and can easily be fixed with a filling. When a root canal is needed, there is severe decay and an infection deep in the tooth pulp that will become worse over time.
Why you shouldn't get a root canal?
Teeth are similar to other organ systems in your body in that they also require a blood supply, lymphatic and venous drainage, and nervous innervations. Root canals, however, are dead teeth, and these dead teeth typically become one of, if not the worst, sources of chronic bacterial toxicity in your body.
What can be done 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.
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.
Is it OK to extract an aching tooth?
Yes, getting a tooth pulled can hurt. However, your dentist will typically give you local anesthesia during the procedure to eliminate the pain. Also, following the procedure, dentists usually recommend over-the-counter (OTC) or prescription pain medication to help you manage the pain.