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A Mouse Model for Pathogen-induced Chronic Inflammation at Local and Systemic Sites
Published on: August 8, 2014
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Experimental gingivitis, bacteremia and systemic biomarkers: a randomized clinical trial
D F Kinane1, P Zhang1, M Benakanakere1
1Department of Periodontics, School of Dental Medicine, University of Pennsylvania, Philadelphia, PA, USA.
Journal of Periodontal Research
|May 12, 2015
Summary
This study investigated the link between gingivitis, bacteremia, and systemic inflammation. Contrary to the hypothesis, experimentally induced gingivitis led to decreased bacteremia and inflammation markers, suggesting a complex relationship.
Area of Science:
- Oral Health
- Periodontology
- Immunology
Background:
- Bacteremia and systemic inflammatory markers are implicated in periodontal and systemic diseases.
- Potential linking mechanisms between oral and systemic health require further investigation.
Purpose of the Study:
- To test the hypothesis that gingival inflammation development increases systemic inflammation markers and bacteremia.
- To explore the relationship between bacteremia and systemic inflammatory markers during experimental gingivitis.
Main Methods:
- An experimental gingivitis study involving 80 subjects, randomized into control and experimental groups.
- The experimental group ceased oral hygiene for 21 days, while the control group maintained a routine.
- Stratification by gender, smoking, and bleeding sites ensured comparable groups.
Main Results:
- The experimental gingivitis group showed significant increases in plaque and gingival inflammation.
- A significant decrease in bacteremia and soluble intercellular adhesion molecule-1 was observed in the experimental group.
- Bacteremia was negatively correlated with gingival inflammation and soluble intercellular adhesion molecule-1, refuting the initial hypothesis.
Conclusions:
- Experimentally induced gingivitis causes notable changes in systemic cytokine levels over a short period.
- Further long-term studies on periodontitis are needed to elucidate the systemic effects of oral diseases.

