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Immunoglobulins in human dental caries
D D Pekovic1, V W Adamkiewicz, M Gornitsky
1Dental Department, Sir Mortimer B. Davis-Jewish General Hospital, Montréal, Québec, Canada.
Archives of Oral Biology
|January 1, 1988
Summary
Secretory IgA (sIgA), IgG, and IgM antibodies were found in advanced human dental caries. IgG showed the greatest penetration into lesions, while IgM frequently associated with complement C3.
Area of Science:
- Immunology
- Oral Biology
- Dental Research
Background:
- Dental caries involves complex interactions between microbial biofilms and host immune responses.
- Immunoglobulins play a role in mucosal immunity and may influence the progression of dental caries.
Purpose of the Study:
- To investigate the presence, penetration, and complement fixation of specific immunoglobulins (sIgA, IgM, IgG) in advanced human dental caries.
- To determine the distribution and association of these immunoglobulins with dental plaque and lesion depth.
Main Methods:
- Utilized a double-staining immunofluorescence technique to visualize immunoglobulin deposition.
- Examined tissue samples from advanced human dental caries lesions.
Main Results:
- Immunoglobulins were detected in dental plaque and superficial lesion layers exposed to saliva.
- Secretory IgA (sIgA) was the most frequently observed immunoglobulin, followed by IgG and IgM.
- IgG demonstrated the highest penetration capacity into carious lesions, followed by IgM and sIgA.
- IgM was most often found in association with complement C3.
Conclusions:
- Specific immunoglobulins are present within advanced human dental caries lesions.
- Different immunoglobulin classes exhibit varying degrees of penetration and complement fixation capabilities within carious lesions.
- Findings suggest a role for specific immunoglobulins and complement activation in the pathogenesis of advanced dental caries.