Gingival abscess: A tender erythematous fluctuant gingival enlargement is present facial to the maxillary first and second molars.

Gingival abscess: Microscopic image showing a dense infiltrate of neutrophils.

Gingival abscess: A microscopic image showing a dense infiltrate of neutrophils, some of which are undergoing liquefaction necrosis.

Periodontal abscess. A tender erythematous fluctuant soft tissue enlargement of recent onset.