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Yeasts in periodontal pockets.
A H Reynaud1, B Nygaard-Østby, G K Bøygard
1Department of Periodontology, Institute of Clinical Dentistry and Institute of Oral Biology, Faculty of Dentistry, University of Oslo, Oslo, Norway.
Journal of Clinical Periodontology
|August 9, 2001
Summary
Yeasts are present in periodontal pockets of about 1 in 6 patients, regardless of age or gender. The bacterium Eubacterium saburreum frequently co-occurs with yeasts in these sites.
Area of Science:
- Oral microbiology
- Periodontology
- Mycology
Background:
- The presence of yeasts in periodontal pockets is infrequently documented.
- The association between yeasts and common periodontal pathogens remains poorly understood.
Purpose of the Study:
- To determine the prevalence of yeasts in periodontal pockets.
- To investigate potential associations between yeast presence, clinical conditions, and co-infecting microorganisms.
Main Methods:
- Microbiological analysis of samples from 128 subjects with periodontal pockets and 126 patients with untreated periodontal pockets.
- Cultivation on blood and Sabouraud agar plates.
- Checkerboard DNA-DNA hybridization for microbial identification.
Main Results:
- Yeasts were found in 15.6% and 17.5% of subjects across the two groups.
- No significant correlation was observed between yeast presence and patient age or gender.
- A weak correlation (r=0.194, p=0.03) was noted between yeasts and Eubacterium saburreum.
Conclusions:
- Yeasts are common inhabitants of periodontal pockets, affecting approximately 1 in 6 patients.
- The presence of yeasts is independent of patient age and gender.
- Eubacterium saburreum appears to be frequently associated with yeast colonization in periodontal pockets.