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pericoronitis; operculitis

inflammation of the soft tissues surrounding the crown of partially erupted tooth Pathology: - accumulation of bacteria & debris beneath the operculum (gum convering erupting tooth), or by mechanical trauma (biting the operculum with the opposing tooth) - often associated with partially erupted & impacted mandibular third molars (lower wisdom teeth)

General

inflammation periodontitis

References

  1. Wikipedia: Peicoronitis http://en.wikipedia.org/wiki/Pericoronitis