Last revised by Henry Knipe on 12 Oct 2019

Pericoronitis is the inflammation of the tissues around the crown of a partially erupted tooth


Pericoronitis most commonly occurs around the third mandibular molars. It initially manifests as a localized gingivitis, can extend into the alveolar bone and may progress to a head/neck deep space abscess 1,2

Radiographic features

  • thickening and enhancement of gingival tissues adjacent to a partially erupted tooth
  • widened follicular space
  • adjacent bone sclerosis

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