Written by Calvin Bennet · Updated September 2026
Most toothaches come from tooth decay — but a cracked tooth, an abscess, a lost filling, a gum infection, or even teeth grinding can all make a tooth hurt. Mild aches sometimes ease with home care, but pain that lasts more than a day or two — or comes with swelling or fever — means it’s time to see a dentist to fix the cause.
You may be asking “why do I have a toothache?”
Let’s explore some of the common reasons for toothaches and how dental health affects your general wellbeing.
Pain in and around your tooth is commonly referred to as a toothache. Reason’s toothaches occur can vary, but here are common causes:
- Tooth Decay
- Abscessed Teeth
- Tooth Fractures
- Damaged Fillings
- Grinding Teeth
- Gum Infections
Common symptoms of a toothache may include:
- Throbbing or sharp pain that seems to originate under or around your tooth. Pain usually gets worse when pressure is applied
- Swelling under or around the tooth
- Headaches
- Fever
- Odorous drainage from tooth
When should I see a Dentist for a toothache?
Generally speaking, you should see your dental provider if:
- Symptoms of toothache last longer than 2 days
- Your toothache is debilitating
- The pain expands from your tooth to other areas of your face and neck
What can a dentist do for a toothache?
Your dentist will follow a standard procedure when it comes to identifying the cause of your toothache and helping to find a cure. Patients should expect to answer comprehensive questions about the pain and when it started – as well as general health questions. Patients may have X-Rays taken in order to check the gums, jaw, sinuses and other areas of the facial structure. All of this is done to help identify any possible causes of your toothache in order to find a solution.
What treatments are there for my toothache?
Various forms of treatment exist for toothaches. Depending on the cause of your toothache, you could be presented with the following options:
- Filling
- Cavity Removal
- Extraction
- Root Canal
- Antibiotics
- Anti-Inflammatories and Rest
Are Toothaches Preventable?
Severe toothaches are generally the result of tooth decay, which can be prevented with quality oral hygiene and dental health practices. It is recommended to brush your teeth twice daily and floss after meals. For preventative care, it’s recommended to visit your dentist twice a year for standard checkups and cleanings.
How to relieve a toothache at home
These can ease a toothache temporarily, but they don’t fix the cause — see a dentist if the pain persists:
- Rinse with warm salt water to clean the area and reduce irritation.
- Take an over-the-counter pain reliever as directed.
- Hold a cold compress against the outside of your cheek.
- Gently floss to remove any trapped food.
- Avoid very hot, cold, or sugary foods on that side.
The bottom line
A toothache is your body flagging a problem — usually decay or infection that won’t clear on its own. Home care buys comfort; a dentist fixes the cause. Don’t wait if the pain is severe or spreading.
Frequently Asked Questions
Why does my tooth hurt?
Most toothaches come from tooth decay, but cracks, an abscess, a lost filling, a gum infection, or teeth grinding can all cause pain. Pain that lasts needs a dentist to find the cause.
How can I stop a toothache fast?
Rinse with warm salt water, take an over-the-counter pain reliever, and hold a cold compress to your cheek for temporary relief — but see a dentist, because these don’t fix the underlying cause.
When is a toothache an emergency?
See a dentist promptly if the pain lasts more than a day or two, is severe, or comes with swelling, fever, or pain spreading to your face or neck.
Sources
Related reading
- Everything You Need to Know About Tooth Decay
- Root Canal Treatment: What to Expect
- How to Stop Grinding Your Teeth
- Relieving Jaw Pain
- What Happens When a Tooth Dies?
Medical disclaimer: this article is for general education and is not a substitute for professional dental advice. Talk to your dentist about what is right for you.