Pericoronitis

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Pericoronitis is the inflammation that occurs in the gum around a tooth that has still not fully erupted. This situation is usually most common in the lower third molars, although it can occur with any tooth in the mouth. The gum forms a pericoronal pouch or sac in which food remnants and microorganisms accumulate, leading to an inflammation of the gum. The area usually becomes hemorrhagic and very sensitive to swallowing or even to opening and closing the mouth. Lymph node changes are sometimes observed in the floor of the mouth and in the neck. Repetitive pericoronitis is often one of the indications for the extraction of a third molar (4)(51)(52).

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