Caries Lesion Activity
A clinical assessment of whether a carious lesion is currently progressing (active) or has arrested (inactive), based on surface characteristics and risk factors.
Full Definition
Caries lesion activity refers to the dynamic status of a caries lesion at the time of examination, classified as active (progressing) or arrested (inactive). Active lesions typically present with a soft, whitish, opaque surface texture, while arrested lesions are often hard, shiny, and may be brown or black. The concept is central to the ICCMS™ (International Caries Classification and Management System) and the ICDAS framework, which have shifted dental research from purely anatomical caries recording to activity-based, risk-tailored management. Editors must ensure authors clearly define the criteria used to determine activity status, as multiple scoring systems exist and are not interchangeable. The term 'active' should not be used synonymously with 'cavitated' nor 'arrested' with 'remineralised'.
Usage
Usage note: Do not conflate 'active caries' with 'cavitated caries'; a lesion can be active at any stage of severity. Always confirm which activity criteria the authors applied.
In Context
- "Caries lesion activity was assessed visually and tactilely according to ICCMS™ criteria at baseline and 12-month follow-up." — Caries clinical trial methods section
- "Authors must distinguish between caries lesion activity and caries severity, as these are independent parameters within the ICDAS-ICCMS™ framework." — Editorial guidance note