Definition, Causes, and Classification

- Pericoronitis is inflammation of the soft tissues surrounding the crown of a partially erupted tooth. - It is caused by an accumulation of bacteria and debris beneath the operculum. - Mechanical trauma, such as biting the operculum, can also cause pericoronitis. - The condition is often associated with partially erupted and impacted mandibular third molars. - Other causes of similar pain in the third molar region include food impaction, dental caries, and temporomandibular joint disorder. - Pericoronitis can be classified as chronic or acute. - Chronic pericoronitis may have mild symptoms and long remissions. - Acute pericoronitis is associated with severe pain, swelling, and fever. - It can lead to the formation of a pericoronal abscess. - In some cases, the infection can spread to other parts of the face or neck.

Signs and Symptoms

- Pain is a common symptom of pericoronitis and can radiate to the ear, throat, and jaw. - Tenderness, redness, and swelling of the tissues around the affected tooth are observed. - Halitosis (bad breath) and a sour taste in the mouth can occur. - Pus may be visible beneath the operculum, especially when pressure is applied. - Trismus (difficulty opening the mouth), dysphagia (difficulty swallowing), and facial swelling can also occur.

Diagnosis and Similar Causes of Pain

- Diagnosis of pericoronitis involves identifying swelling and tenderness of the operculum and around the wisdom tooth. - Dull, aching pain can be felt in the face, around the ear, angle of the jaw, and inside the mouth behind the upper wisdom tooth. - Similar causes of pain include dental caries, food packing between the wisdom tooth and the tooth in front, pain associated with temporomandibular joint disorder and myofascial pain, and rare occurrence of pericoronitis in both lower third molars at the same time.

Treatment and Complications

- Treatment of pericoronitis involves pain management and resolving the inflammation. - Flushing the debris or infection from the pericoronal tissues can help resolve the inflammation. - Removing the associated tooth or operculum may be necessary in some cases. - Improved oral hygiene is important to prevent further episodes of acute pericoronitis. - Recurrent pericoronitis may require tooth removal. - Complications of pericoronitis can include the spread of infection to other areas of the face or neck and airway compromise, requiring emergency hospital treatment.

Prevention, Management, Prognosis, and Epidemiology

- Prevention of pericoronitis includes the removal of impacted third molars before they erupt into the mouth and preemptive operculectomy. - There is controversy over the necessity and timing of removing asymptomatic, disease-free impacted wisdom teeth. - Management involves the application of pain management gels, improved oral hygiene, and removal of plaque stagnation areas through tooth extraction or gingival resection. - Acute symptoms of pericoronitis are often treated before addressing the underlying cause. - Prognosis depends on plaque stagnation area removal, non-impacted tooth eruption, adequate space, and improved oral hygiene. - Pericoronitis commonly occurs in young adults during wisdom teeth eruption, and the likelihood decreases significantly after the individual reaches their twenties.