How long does pericoronitis of the wisdom tooth usually last?

Most people have wisdom teeth—so-called because they typically emerge after a person has reached intellectual maturity. Generally, the eruption of wisdom teeth is accompanied by pain, as their position is often irregular compared to other teeth. So, how long does pericoronitis (inflammation around a partially erupted wisdom tooth) usually last?

How long does pericoronitis typically last?

Pericoronitis usually causes pain for 3 to 5 days. However, the duration of pain depends on several factors, including the severity of the inflammation, the timeliness of treatment, and the patient’s own immune resistance. The hallmark features of pericoronitis include swelling and pain in the gingival tissue surrounding the crown of the wisdom tooth; occasionally, patients may also experience sore throat, increased salivation, and restricted or painful mouth opening. In mild cases, symptoms may resolve spontaneously within 2–3 days. In more severe cases, a pericoronal abscess may develop, manifesting as pronounced local swelling, significant trismus (limited mouth opening), and even fever. Early intervention is essential for effective management of pericoronitis.

Patients with pericoronitis require both local treatment and oral antibiotics. Local therapy primarily involves alternating irrigation of the pericoronal blind pouch (the space between the gum flap and the tooth crown) with hydrogen peroxide and normal saline to remove bacteria, food debris, and inflammatory exudates. Subsequently, under professional supervision, iodine glycerin may be applied topically to reduce inflammation, while oral anti-inflammatory and analgesic medications—such as metronidazole and amoxicillin—are prescribed. In severe cases, intravenous antibiotics may be necessary. If a pericoronal abscess is present, incision and drainage are required.

In daily life, patients should maintain a positive mindset, actively cooperate with their healthcare providers, take prescribed medications on time and in the correct dosage, and pay close attention to routine oral care—thereby facilitating prompt recovery. We hope this information proves helpful to you.