Periodontium
Pronunciation: peh-ree-oh-DON-tee-um
The collective term for the supporting tissues of the tooth, comprising the gingiva, periodontal ligament, cementum, and alveolar bone.
Full Definition
The periodontium comprises four interdependent tissues: the gingiva, the periodontal ligament (PDL), the root cementum, and the alveolar bone proper. Together they anchor teeth within the jaw and absorb occlusal forces. In editorial contexts, 'periodontium' is the accepted umbrella term and should not be replaced with 'periodontal tissue' in formal clinical writing without good reason. Understanding its components is essential when editing periodontal classification documents, surgical reports, and implant literature where attachment loss is quantified.
Usage
Usage note: Use 'periodontium' as the singular collective noun; avoid the incorrect plural 'periodontiums' in formal texts — 'periodontal tissues' is the preferred plural construction.
In Context
- "Systemic diseases such as diabetes mellitus can compromise the integrity of the periodontium, accelerating attachment loss." — Periodontal medicine review
- "The surgical goal was to regenerate lost periodontium using a combination of bone graft and barrier membrane." — Guided tissue regeneration clinical report