Related Experiment Video
Updated: May 14, 2026

A Mouse Model for Pathogen-induced Chronic Inflammation at Local and Systemic Sites
Published on: August 8, 2014
PISA: Inflamed Surface Area of Gums Triggering Systemic Hyperinflammation
Himani1, Shalini Kapoor1, Amit Bhardwaj1
1Department of Periodontology, Faculty of Dental Sciences, SGT University, Gurugram, Haryana, India.
None:
Periodontitis, a chronic inflammatory disease, causes progressive loss of periodontal tissues. Traditional measures like clinical attachment loss and probing pocket depth fail to quantify the inflammatory burden accurately. The Periodontal Inflamed Surface Area (PISA) quantifies the surface area of bleeding pocket epithelium, offering a better measure of inflammation. This review explores the association between PISA and systemic disorders such as cardiovascular disease, diabetes, dementia, and rheumatoid arthritis (RA). Studies show higher PISA levels correlate with elevated systemic inflammatory markers, including high-sensitivity C-reactive protein and vascular stiffness. In Type 2 diabetes mellitus, PISA is positively associated with HbA1c levels, indicating a dose-response relationship. Additional links have been identified between PISA and conditions like dementia, RA, and diabetic complications. These findings underscore PISA's value in assessing the systemic impact of periodontitis, advocating for its integration into holistic patient care and further research to standardize its use.
Related Concept Videos
Chronic Inflammation: Introduction
Acute Inflammation II: Local and Systemic Effects
The Oral Microbiota
Gastritis II: Pathophysiology
Inflammation
Inflammatory Bowel Disease II: Ulcerative Colitis