Periodontal Abscess
Pronunciation: pair-ee-oh-DON-tal AB-ses
An acute, localised bacterial infection within the tissues of the periodontium, typically presenting as a fluctuant, painful swelling adjacent to a periodontal pocket.
Full Definition
A periodontal abscess is a purulent collection that forms within the gingival or periodontal tissues, most commonly in the context of pre-existing periodontitis. It is distinguished from a periapical abscess, which originates from pulpal pathology, and a pericoronal abscess, which surrounds an erupting tooth. Clinical features include rapid-onset pain, erythema, swelling, tooth mobility, and sinus tract formation. Editors must take care not to confuse 'periodontal abscess' with 'periapical abscess'; the distinction is clinically and documentarily significant, particularly in insurance and medico-legal records. The plural form is 'periodontal abscesses,' not 'periodontal absci.'
Usage
Usage note: Carefully distinguish from 'periapical abscess' (pulpal origin) and 'gingival abscess' (confined to the gingival margin without pocket involvement). In medico-legal records, the distinction affects treatment liability and insurance coding.
In Context
- "A periodontal abscess was diagnosed on the distal aspect of tooth 36, draining through the existing 8 mm pocket." — Emergency dental clinical note
- "The referral letter incorrectly described a periodontal abscess as a 'periapical abscess'; this was corrected prior to specialist review." — Dental referral editorial correction