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[Microbial populations and periodontal condition--evaluation by differential phase contrast microscopy]
Gaoxiong Yi Xue Ke Xue Za Zhi = the Kaohsiung Journal of Medical Sciences
|March 1, 1989
Summary
Bacterial morphotypes in periodontal disease correlate with clinical signs. Spirochetes and motile rods increase with gingival index and probing depth, indicating active disease.
Area of Science:
- Microbiology
- Periodontology
- Oral Health
Context:
- Periodontal disease involves complex subgingival bacterial communities.
- Clinical indices like gingival index and probing depth assess disease severity.
- Understanding the relationship between bacterial flora and clinical signs is crucial for diagnosis and treatment.
Purpose:
- To correlate clinical assessments of periodontal disease with bacterial morphotype proportions.
- To identify specific bacterial morphotypes associated with varying states of periodontal disease.
- To investigate the utility of bacterial morphotype analysis in monitoring periodontal health.
Summary:
- Phase-contrast microscopy analyzed 154 periodontal sites for bacterial morphotypes.
- Correlations were sought between gingival index, probing depth, plaque index, and calculus index.
- Significant positive correlations were found between gingival index/probing depth and spirochetes/motile rods.
- Significant negative correlations were observed between gingival index/probing depth and coccoid cells/rods.
- Increased spirochetes and motile bacteria correlated with bleeding upon probing.
Impact:
- Findings may aid in monitoring treatment efficacy on periodontal flora.
- Bacterial morphotype analysis could help determine the presence or absence of active periodontal disease.
- This research provides insights into the microbial landscape of periodontal disease progression.