An infected wisdom tooth is a common dental issue that can cause significant discomfort and, if left untreated, lead to serious oral health complications. Wisdom teeth, or third molars, are the last set that typically emerge in your late teens or early twenties. These teeth often cause problems due to lack of space in the mouth or their position, resulting in issues such as impacted wisdom teeth or partially impacted wisdom teeth.

In this blog, we’ll explore what happens when a wisdom tooth becomes infected, why it happens, the symptoms associated with an infected wisdom tooth, and the treatment options available to resolve the issue. We’ll also discuss the importance of wisdom teeth removal and the potential risks if left untreated.

What Causes an Infected Wisdom Tooth?

An infected wisdom tooth occurs when the tooth or the surrounding tissues become infected, typically due to bacteria entering an area of the gum line. This infection can arise from several factors, including:

1. Partially Impacted Wisdom Teeth

When wisdom teeth erupt, they may not fully emerge from the gum line, leaving part of the tooth covered by gum tissue. This condition is known as partially impacted wisdom teeth. The opening between the tooth and the gum is ideal for bacteria to thrive, leading to an infection.

• Symptoms include pain, gum line swelling, and difficulty opening your mouth.

2. Impacted Wisdom Teeth

An impacted wisdom tooth occurs when there isn’t enough room in the mouth for the wisdom teeth to erupt properly. This can lead to the tooth growing at an angle, pushing against adjacent teeth or jawbone, causing pressure and, sometimes, infection. Impacted wisdom teeth are often harder to clean, which increases the risk of bacteria buildup and infection.

• Symptoms: Persistent pain, swelling, tenderness in the jaw, and bad breath.

3. Tooth Decay

Tooth decay in wisdom teeth is another common cause of infection. Due to their position, wisdom teeth can be difficult to clean properly, making them more susceptible to decay. When bacteria break down the tooth enamel, an infection can develop.

• Symptoms: Sharp or dull pain, especially when eating or drinking, and visible holes in the teeth.

4. Gum Disease

The infection may also be linked to gum disease, in which the tissues around the wisdom teeth become inflamed and infected. This can occur due to inadequate oral hygiene or food particles trapped around the gum line, contributing to bacterial growth.

• Symptoms: Swollen gums, bleeding gums when brushing, and gum recession around the affected tooth.

Symptoms of an Infected Wisdom Tooth

An infected wisdom tooth can present a variety of symptoms, ranging from mild to severe, depending on the extent of the infection. Common symptoms of an infected wisdom tooth include:

1. Pain

The most common symptom of an infected wisdom tooth is pain, which can vary from mild discomfort to severe, throbbing pain. This pain may worsen when chewing, swallowing, or touching the area.

• Severity: The pain might be localized to the affected area, often around the back of the jaw where the wisdom tooth is located.
• Radiation: In some cases, the pain can radiate to the jaw, ear, or head.

2. Swelling

Swelling around the affected tooth is another typical sign of an infection. The gums may appear swollen, red, or tender to the touch. In severe cases, the entire jaw or neck may swell, indicating a more significant infection.

3. Bad Breath or Taste

An infected wisdom tooth often leads to bad breath or a foul taste in the mouth due to bacteria and pus around the tooth. This can occur even after brushing your teeth or using mouthwash, as the infection creates an environment for bacteria to thrive.

4. Gum Bleeding

If the infection affects the gum tissue around the wisdom tooth, it can lead to bleeding gums, particularly when brushing or flossing near the tooth.

5. Difficulty Opening Your Mouth

Infected wisdom teeth can make it difficult to fully open your mouth due to swelling and pain around the affected area. This can impact your ability to chew or speak properly.

6. Other Symptoms

• Jaw pain or stiffness
• Fever (in severe cases)
• Redness or tenderness in the gum tissue
• Pus discharge from the tooth socket

If you experience any of these symptoms, especially severe pain or swelling, you must see a dentist or oral surgeon promptly.

Risks of an Infected Wisdom Tooth

Leaving an infected wisdom tooth untreated can lead to serious health problems. The infection may spread to other areas of the mouth or even into the bloodstream, leading to conditions like periodontal disease or abscesses. Some of the risks associated with untreated infected wisdom teeth include:

1. Abscess Formation

If the infection is left untreated, it can lead to an abscess, a pocket of pus caused by the infection. Abscesses can form at the tip of the tooth root, leading to intense pain and swelling. The abscess may sometimes require surgical drainage to prevent further complications.

2. Spread of Infection

In rare cases, the infection can spread to the surrounding tissues, including the jaw, neck, and even the brain, causing potentially life-threatening conditions like sepsis.

3. Damage to Adjacent Teeth

An impacted wisdom tooth can push against neighboring teeth, causing misalignment or damage to those teeth. This pressure can also lead to additional dental issues, such as tooth decay in neighboring teeth.

4. Sinus Infections

Infections from the upper wisdom teeth can sometimes spread to the sinuses, leading to sinusitis or a sinus infection. This can cause symptoms like facial pain, pressure, and congestion.

Treatment for Infected Wisdom Teeth

The treatment for an infected wisdom tooth depends on the severity of the infection and whether the tooth is impacted or erupted. Below are some common treatment options:

1. Antibiotics

If the infection is caught early, antibiotics are often the first line of treatment. These medications help to clear the infection and reduce the swelling and pain caused by bacteria.

• Effectiveness: Antibiotics can alleviate mild to moderate infections, but they do not address the underlying cause of the problem, such as an impacted wisdom tooth.
• Dosage: Your dentist or oral surgeon will prescribe the appropriate antibiotics based on the severity of the infection.

2. Pain Management

Over-the-counter pain relievers, such as ibuprofen or acetaminophen, can help manage pain and swelling associated with an infected wisdom tooth. An ice pack applied to the jaw can also reduce swelling and discomfort.

3. Warm Saltwater Rinse

A saltwater rinse is a simple and effective way to relieve gum pain and reduce swelling around an infected wisdom tooth. It also helps flush out food particles and bacteria trapped near the gum line.

• How to Use: Dissolve half a teaspoon of salt in a cup of warm water and rinse your mouth for 30 seconds. Repeat several times a day.

4. Wisdom Teeth Removal

If the infection is severe or caused by impacted wisdom teeth, the best course of action may be to remove them. Wisdom tooth removal is often recommended when the wisdom tooth pushes against neighboring teeth, causes recurrent infections, or does not fully erupt.

• Surgical Removal: If the tooth is impacted, an oral surgeon or oral and maxillofacial surgeon will perform oral surgery to remove the impacted wisdom teeth. In some cases, the tooth may require general anesthesia.
• Healing Time: Recovery from wisdom teeth removal typically takes 1-2 weeks, but full recovery may take several weeks. During recovery, it is important to follow post-surgical care instructions to prevent complications such as dry sockets.

5. Follow-Up Care

After treatment for an infected wisdom tooth, it is important to follow up with your dentist to ensure the infection has been fully resolved. If surgery is performed, your oral surgeon will schedule follow-up appointments to monitor healing and remove stitches.

Conclusion

If not treated promptly, an infected wisdom tooth can cause significant discomfort and serious oral health complications. If you suspect an infection, it is important to be aware of the symptoms, such as pain, swelling, and bad breath, and seek professional dental care. Treatment options, from antibiotics and pain management to wisdom teeth removal, can relieve symptoms and prevent further complications.

If you have impacted wisdom teeth or experience recurring infections, it may be time to consider wisdom teeth removal as a long-term solution. Always consult with an oral surgeon or dentist to determine the best course of action based on your specific situation and the severity of the infection. By addressing infected wisdom teeth early, you can avoid complications and maintain optimal oral health.

References

https://www.betterhealth.vic.gov.au/health/conditionsandtreatments/wisdom-teeth

https://www.medicalnewstoday.com/articles/wisdom-tooth-infection#:~:text=What%20to%20know%20about%20a%20wisdom%20tooth%20infection&text=Symptoms%20of%20a%20wisdom%20tooth,the%20four%20additional%20wisdom%20teeth.

https://www.mayoclinic.org/diseases-conditions/wisdom-teeth/symptoms-causes/syc-20373808