Gingival Crevicular Fluid
Also written as: GCF — Gingival Crevicular Fluid
A serum-like exudate that seeps into the gingival sulcus from the underlying connective tissue; used as a biomarker source in periodontal research. Abbreviated GCF.
Full Definition
Gingival crevicular fluid (GCF) is an inflammatory exudate derived from local blood vessels that flows through the sulcular epithelium into the gingival sulcus. Its flow rate and composition—including cytokines, enzymes, and metabolic by-products—reflect the local inflammatory status and are widely studied as non-invasive periodontal biomarkers. Editors reviewing research articles should ensure GCF is expanded on first use and that data on GCF volume or constituent concentrations are presented with appropriate units (typically microlitres or pg/mL). The term should not be shortened to 'crevicular fluid' without prior definition. 'Gingival fluid' is an acceptable informal synonym but may lack precision in clinical science contexts.
Usage
Usage note: Expand 'GCF' on first mention in any document. Ensure volume units are consistent throughout biomarker research articles.
In Context
- "GCF samples were collected using Periopaper strips and analysed for interleukin-1β concentrations." — Periodontal research article
- "An elevated GCF flow rate was noted at sites demonstrating active attachment loss." — Clinical case series