### What is Pericoronitis? Pericoronitis is an inflammation or swelling of the gum tissue, often occurring around the wisdom teeth, which are the third set of molars that typically emerge in late teens or early twenties. This condition is more common in the lower teeth. ### Causes of Pericoronitis Pericoronitis usually develops when wisdom teeth only partially erupt through the gum. A flap of soft tissue, known as an operculum, can form over the partially erupted tooth. Bacteria can get trapped under this operculum, leading to infection and swelling. Food particles, bacteria, or plaque can also get caught under the gum flap, causing irritation and infection. ### Symptoms Symptoms of pericoronitis can be acute (short-term) or chronic (ongoing). Acute symptoms include severe pain, swelling, and difficulty opening the mouth. Chronic symptoms may be less severe but persistent, including mild discomfort and occasional swelling. ### Diagnosis Your dentist will examine your wisdom teeth to see if they are partially erupted and may take X-rays to check their alignment. They will also look for signs of infection or swelling and check for the presence of a gum flap around the tooth. ### Treatment Pericoronitis can be treated by a general dentist or a specialist. Treatment options include cleaning the area to remove trapped food and bacteria, prescribing antibiotics to treat the infection, and in some cases, removing the wisdom tooth. ### Prevention Good oral hygiene, including regular brushing and flossing, can help prevent pericoronitis. Regular dental check-ups are also important to monitor the condition of your wisdom teeth.