Signs of Wisdom Tooth Infection: Symptoms, Causes, and When to See a Dentist

Introduction to Signs of Wisdom Tooth Infection

Wisdom teeth, also known as third molars, are the last teeth to develop, typically emerging between ages 16 and 25. While some people have enough space for their wisdom teeth to erupt properly, many do not—leading to impacted teeth, pain, and infection.
A wisdom tooth infection, also called pericoronitis, can quickly lead to serious complications if left untreated. Infections can spread to nearby teeth, the jawbone, and even the bloodstream, turning what starts as minor discomfort into a potential emergency.

At Prostho Endo Dental Specialists, located in North Bethesda, Maryland, we specialize in diagnosing and treating wisdom tooth infections for patients in Rockville, Potomac, Bethesda, and surrounding areas.

In this guide, we’ll cover:
  • Common causes of wisdom tooth infections
  • Warning signs you shouldn’t ignore
  • When to see a dentist for treatment
  • How to prevent wisdom tooth infections from happening
If you suspect your wisdom tooth is infected, don’t wait! Call or text us now at(301) 377-8306 to schedule an appointment before the problem gets worse.

What Causes Wisdom Tooth Infections?

Wisdom tooth infections usually happen when a tooth is impacted (stuck under the gums) or partially erupted (partially breaks through the gum). This creates an opening where bacteria, food particles, and plaque can become trapped, leading to inflammation and infection.

Common Causes of Wisdom Tooth Infections:
  • Impacted Wisdom Teeth – Teeth that fail to fully emerge and remain stuck beneath the gum, creating pressure, swelling, and infection.
  • Partially Erupted Wisdom Teeth – When a tooth partially breaks through the gum, it leaves a small opening where bacteria can enter.
  • Poor Oral Hygiene – Since wisdom teeth are located at the very back of the mouth, they are harder to clean, increasing the risk of infection and decay.
  • Gum Flaps(Pericoronitis) – Sometimes, a flap of gum tissue partially covers the wisdom tooth, creating the perfect place for bacteria to thrive.
  • Cavities & Decay – Wisdom teeth are difficult to reach with a toothbrush and floss, making them prone to cavities, which can lead to infection if untreated. Because wisdom teeth are so hard to clean, they are more susceptible to infection than other teeth.
Signs of Wisdom Tooth Infection
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7 Warning Signs of a Wisdom Tooth Infection

1. Pain and Swelling in the Back of Your Mouth
– A dull ache or sharp pain near your wisdom tooth is often the first sign of infection.
– The pain may spread to your jaw, ear, or even down your neck.

2. Red, Swollen, or Bleeding Gums
– Infected wisdom teeth cause gum inflammation, leading to redness, tenderness, and bleeding when brushing or flossing.
– You may also experience difficulty chewing on that side of your mouth.

3. Difficulty Opening Your Mouth(Trismus)
– If swelling spreads, it can stiffen the jaw muscles, making it painful or even impossible to open your mouth fully.
– This condition is called trismus and is a sign that the infection is spreading.

4. Bad Breath or a Foul Taste in Your Mouth
– A foul odor or bad taste in your mouth—even after brushing—can be a sign of pus draining from an infected wisdom tooth.

5. Fever and General Discomfort
– Fever, chills, or body aches mean your body is fighting off an infection.
– If you’re feeling sick or fatigued, the infection may be spreading beyond your mouth.

6. Swollen Lymph Nodes Under Your Jaw
– Your body’s immune system fights infection by activating lymph nodes under the jaw, making them swollen and tender.

7. Pus Around the Tooth
– If you notice white or yellow pus near your wisdom tooth, it’s a clear sign of infection.
– Pus buildup indicates severe infection and requires urgent dental care.

If you are experiencing any of these symptoms, don’t wait—seek treatment immediately! Call or text us at(301) 377-8306 to schedule an appointment.

When to See a Dentist for a Wisdom Tooth Infection

A wisdom tooth infection can escalate quickly, leading to:
  • Abscess formation (a painful pocket of pus)
  • Severe swelling that affects breathing
  • Systemic infection(sepsis), which can be life-threatening
When to Seek Dental Care:
  • Mild symptoms? Schedule a dental appointment ASAP.
  • Severe pain, fever, or swelling? Seek urgent dental care or visit an emergency dentist.
Call or text us at(301) 377-8306 to book an appointment before it gets worse!

Treatment Options for Wisdom Tooth Infections

Your dentist will determine the best treatment based on the severity of the infection and the condition of your wisdom teeth.

Common Treatment Options Include:
  • Antibiotics – Prescribed to fight infection, but they don’t fix the underlying issue.
  • Deep Cleaning – Removes trapped bacteria, plaque, and food debris from around the tooth.
  • Drainage of Abscess – If pus has built up, it may need to be drained to relieve pressure and pain.
  • Wisdom Tooth Extraction – The most effective long-term solution if the tooth is causing repeated infections.

What to Expect Before and After Wisdom Tooth Extraction

If your wisdom tooth continues to cause infections, your dentist may recommend extraction.
What Happens Before the Procedure?
  • A cone beam CT scan is taken to evaluate the tooth’s position and its proximity to nerves.
  • Your dentist will discuss sedation options to keep you comfortable.
What Happens After the Extraction?
  • Pain and swelling typically last 2-3 days.
  • Most patients experience full healing within a week.
  • Some may need a follow-up visit for suture removal, while others have dissolvable stitches.

How to Prevent Wisdom Tooth Infections

Since wisdom teeth are hard to clean, taking preventive steps is key to avoiding infections.
How to Keep Your Wisdom Teeth Healthy:
  • Maintain Good Oral Hygiene – Brush, floss, and use antibacterial mouthwash.
  • Schedule Regular Dental Checkups – X-rays can detect potential problems early.
  • Monitor Wisdom Teeth Growth – If they are impacted, removal may be necessary before they cause an infection.

Final Thoughts: Don’t Ignore Wisdom Tooth Infections!

A wisdom tooth infection is more than just a little pain—it can lead to serious health complications if left untreated. Recognizing the early warning signs and seeking prompt dental care can save you from unnecessary pain and potential emergencies.

Feeling discomfort in your wisdom teeth? Don’t wait for the pain to get worse! Call or text us now at(301) 377-8306 to schedule an exam.

At Prostho Endo Dental Specialists, we proudly serve North Bethesda, Rockville, Potomac, Bethesda, and surrounding areas. Let our expert team help you get back to a pain-free, healthy smile!

What people are saying

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