Pericoronitis is a painful dental condition that can affect the wisdom teeth or third molars. It occurs when the gum tissue around a partially erupted tooth becomes inflamed and infected. This condition can be extremely uncomfortable and often requires prompt dental intervention. In this comprehensive article, we will delve into the causes, symptoms, treatment, and prevention of pericoronitis, providing you with a thorough understanding of this oral health issue.


What Is Pericoronitis?

Pericoronitis, as the name suggests, is an inflammation (itis) around the crown (corona) of a tooth. It primarily affects the gum tissue that partially covers a partially erupted wisdom tooth. This condition can cause significant discomfort and can lead to infection if left untreated.

Partial Eruption of Wisdom

Teeth One of the common problems associated with wisdom teeth is their partial eruption. Unlike other teeth that fully erupt through the gum, wisdom teeth often emerge only partially or remain trapped beneath the gumline. This partial eruption can create a pocket or flap of gum tissue that covers part of the tooth’s crown.

What Are Wisdom Teeth?

Wisdom teeth, also known as third molars, typically appear in late adolescence or early adulthood, between the ages of 17 and 25. Most people have four wisdom teeth, two in the upper jaw and two in the lower jaw. However, not everyone develops these teeth, and some individuals may only have one or two.


Causes of Pericoronitis

  • Bacterial Infection
  • Poor Oral Hygiene
  • Trauma
  • Impacted Wisdom Teeth


Bacterial Infection

The primary cause of pericoronitis is a bacterial infection. The trapped food particles, debris, and plaque around a partially erupted wisdom tooth provide a fertile ground for bacteria to thrive. These bacteria can cause an infection in the surrounding gum tissue, leading to inflammation and pain.

Poor Oral Hygiene

Inadequate oral hygiene practices play a significant role in the development of pericoronitis. Failing to brush and floss properly, especially around partially erupted wisdom teeth, can increase the risk of bacterial buildup and subsequent infection.


Trauma or injury to the gum tissue around a partially erupted wisdom tooth can also trigger pericoronitis. For example, biting down on a hard piece of food that hits the gum flap can cause damage and lead to infection.

Impacted Wisdom Teeth

Impacted wisdom teeth, which are unable to emerge fully due to lack of space or an improper angle, are more prone to pericoronitis. These teeth are often partially covered by gum tissue, making it easier for bacteria to accumulate.


Symptoms of Pericoronitis

  • Pain and Discomfort
  • Swelling
  • Bad Breath
  • Foul Taste
  • Difficulty Opening the Mouth


Pain and Discomfort

The most common and noticeable symptom of pericoronitis is pain and discomfort in the affected area. The pain can range from mild to severe and may radiate to the jaw, ear, or throat.


Inflammation of the gum tissue is a hallmark symptom of pericoronitis. The gum around the partially erupted wisdom tooth may become red, swollen, and tender to the touch.

Bad Breath

The infection and bacterial buildup associated with pericoronitis can lead to bad breath or halitosis.

Foul Taste

Some individuals with pericoronitis report a foul or metallic taste in their mouth. This is often due to the presence of pus or infected material around the affected tooth.

Difficulty Opening the Mouth

In severe cases, pericoronitis can cause difficulty in opening the mouth fully. This is because the swollen gum tissue can impede normal jaw movement.


Diagnosing Pericoronitis

Diagnosing pericoronitis usually involves a clinical examination by a dentist or oral surgeon. The healthcare professional will assess the symptoms and visually inspect the affected area. In some cases, X-rays may be taken to evaluate the position of the wisdom tooth and any associated dental issues.


Treatment for Pericoronitis

  • Pain Management
  • Antibiotics
  • Irrigation and Drainage
  • Warm Salt Water Rinses
  • Dental Cleaning
  • Surgical Removal


Pain Management

The first step in treating pericoronitis is to manage pain and discomfort. Over-the-counter pain relievers, such as ibuprofen, are commonly recommended to alleviate the pain. In some cases, the dentist may prescribe stronger pain medications.


To address the bacterial infection, antibiotics are typically prescribed. Commonly used antibiotics include amoxicillin and metronidazole. It’s essential to complete the full course of antibiotics as prescribed by the dentist to ensure the infection is completely eradicated.

Irrigation and Drainage

In some cases, the dentist may need to irrigate the affected area to remove debris and pus. This can help alleviate symptoms and promote healing.

Warm Salt Water Rinses

Warm salt water rinses can help reduce inflammation and promote healing. Patients are often instructed to rinse their mouth with a saltwater solution a few times a day.

Dental Cleaning

Improving oral hygiene is a crucial part of pericoronitis treatment. The dentist may provide instructions on how to clean around the wisdom tooth properly. In some cases, a dental cleaning may be necessary to remove plaque and debris.

Surgical Removal

If pericoronitis becomes a recurring issue or is severe, surgical removal of the wisdom tooth may be recommended. This procedure, known as wisdom tooth extraction, is often performed by an oral surgeon or dentist.


Preventing Pericoronitis

  • Good Oral Hygiene
  • Regular Dental Checkups Regular
  • Avoiding Trauma
  • Antimicrobial Mouthwash
  • Extraction of Impacted Wisdom Teeth


Good Oral Hygiene

The most effective way to prevent pericoronitis is through good oral hygiene practices. Regular brushing and flossing, paying particular attention to the area around wisdom teeth, can help prevent the accumulation of debris and bacteria.

Regular Dental Checkups Regular

dental checkups are essential for identifying potential issues with wisdom teeth early on. Dentists can monitor the development and eruption of these teeth and recommend extraction if necessary.

Avoiding Trauma

Avoid biting down on hard or sharp objects to prevent trauma to the gum tissue around wisdom teeth. This can reduce the risk of injury and subsequent infection.

Antimicrobial Mouthwash

Using an antimicrobial mouthwash as part of your oral hygiene routine can help reduce the bacterial load in your mouth, decreasing the risk of infection.

Extraction of Impacted Wisdom Teeth

In cases where wisdom teeth are impacted or causing recurrent problems, it may be advisable to have them surgically removed. This preventive measure can eliminate the possibility of pericoronitis and other associated issues.



Pericoronitis is a painful and potentially serious oral health condition that can affect individuals with partially erupted wisdom teeth. It is caused by bacterial infection, often resulting from poor oral hygiene practices, and can lead to symptoms such as pain, swelling, and bad breath. Prompt diagnosis and treatment by a dental professional are essential to alleviate symptoms and prevent complications.

Preventing pericoronitis involves maintaining good oral hygiene, regular dental checkups, and taking preventive measures like the extraction of impacted wisdom teeth when necessary. By understanding the causes, symptoms, treatment, and prevention of pericoronitis, individuals can take steps to protect their oral health and ensure a pain-free and infection-free future.

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