Why Does My Tooth Hurt? Common Causes of Tooth Pain and What to Do

Tooth pain can stop you in your tracks. Whether it’s a dull ache, sharp jolt, or constant throbbing, tooth pain is your body’s way of telling you something’s wrong.

Understanding the cause of your discomfort is the first step toward relief—and Modern Dental of Durham is here to help. In this post, we’ll explore the most common reasons your tooth might hurt, how to treat it, and when to call your dentist.

Common Causes of Tooth Pain

Not all toothaches are the same, and the cause can range from mild sensitivity to serious infection. Here are the most frequent culprits:

1. Tooth Decay (Cavities)

• Caused by plaque and bacteria breaking down enamel

• Pain usually increases with exposure to hot, cold, or sweet foods

• Can worsen if left untreated

2. Gum Disease (Gingivitis or Periodontitis)

• Inflammation or infection of the gums can cause aching teeth

• Often accompanied by bleeding, swelling, or receding gums

• May lead to bone and tooth loss if untreated 👉 Learn more about gum disease symptoms and treatment here

3. Tooth Abscess (Infection)

• A severe, throbbing pain caused by an untreated cavity or gum infection

• May come with swelling, fever, or a bad taste in the mouth

• Requires immediate dental care

4. Tooth Sensitivity

• Caused by worn enamel, exposed roots, or whitening products

• Pain triggered by hot, cold, sweet, or acidic foods and drinks

• Often treated with special toothpaste or fluoride treatments

5. Cracked or Fractured Tooth

• Pain when chewing or biting

• May be hard to spot without X-rays

• Can lead to further damage if not treated promptly

6. Impacted Wisdom Teeth

• Pain or pressure at the back of the jaw

• Swelling, redness, or difficulty opening the mouth

• Common in teens and young adults

7. Teeth Grinding (Bruxism)

• Can cause jaw soreness, headaches, and worn teeth

• Often occurs during sleep or stressful periods

• A mouthguard or stress management may help

8. Sinus Infection

• Sometimes sinus pressure can mimic tooth pain in the upper back teeth

• Often accompanied by nasal congestion or pressure around the eyes

9. Damaged Fillings or Dental Work

• Older or loose fillings/crowns can expose sensitive tooth structures

• Can cause sharp or throbbing pain with temperature changes

When to See a Dentist

Tooth pain that lasts more than a day or two, worsens over time, or comes with swelling or fever should never be ignored.

👉 According to the American Dental Association, timely dental care can prevent more serious complications and save your tooth.

How Modern Dental of Durham Can Help

Our compassionate team will perform a thorough evaluation to find the root cause of your tooth pain and recommend the best course of treatment. Whether you need a simple filling, root canal, or gum treatment, we’ll get you smiling again—pain-free.

Don’t Wait—Get Relief Today

If you're dealing with tooth pain, don't tough it out. Early treatment can prevent bigger problems (and bigger bills) later.

📞 Call Modern Dental of Durham at 919-544-3723 💻 Or request an appointment online at moderndentalofdurham.com/request-an-appointment