Pericoronitis (from the Greek , "around", Latin "crown" and , "inflammation") also known as
operculitis, is
inflammation of the
soft tissues surrounding the crown of a
partially erupted tooth, including the
gingiva (gums) and the
dental follicle. The soft tissue covering a partially erupted tooth is known as an
operculum, an area which can be difficult to access with normal
oral hygiene methods. The synonym
operculitis technically refers to inflammation of the operculum alone.