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Updated: Jun 2, 2026
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Three-dimensional Inflammatory Human Tissue Equivalents of Gingiva
Published on: April 3, 2018
Melanin: a scavenger in gingival inflammation
1Department of Periodontics, College of Dental Sciences, Davangere, Karnataka, India.
Summary
Melanin pigmentation in the gingiva may offer protection against inflammation. Studies show reduced inflammation markers in pigmented gums, suggesting a protective role for melanin against periodontal pathogens.
Area of Science:
- Oral biology
- Periodontology
- Immunology
Background:
- Melanocytes, melanin-producing cells, protect skin from free radicals.
- Periodontal pathogens can induce reactive oxygen species, contributing to gingival inflammation.
- The protective role of gingival melanin against inflammation requires elucidation.
Purpose of the Study:
- To investigate the potential protective role of gingival melanin against inflammation.
- To correlate clinical inflammatory markers with interleukin-1 beta (IL-1β) levels in pigmented and non-pigmented gingiva.
Main Methods:
- 80 subjects were divided into four groups based on gingival pigmentation (Dummett's criteria) and periodontal health.
- Clinical parameters (plaque index, gingival index, bleeding index) were assessed.
- Gingival crevicular fluid (GCF) was collected, and IL-1β levels were quantified using ELISA.
Main Results:
- In non-pigmented groups, plaque, gingival, and bleeding indices positively correlated with IL-1β levels.
- In the pigmented healthy group, gingival and bleeding indices correlated with IL-1β levels.
- The pigmented gingivitis group exhibited a negative correlation between clinical inflammation indices and IL-1β levels.
Conclusions:
- Gingival melanin may exert a protective effect, as indicated by lower clinical inflammation markers in pigmented individuals.
- The reduced correlation between clinical inflammation and IL-1β in pigmented gingivitis suggests melanin's potential anti-inflammatory properties.
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