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Related Experiment Videos

Peptostreptococcus micros in human periodontitis.

T E Rams1, D Feik, M A Listgarten

  • 1University of Pennsylvania, School of Dental Medicine.

Oral Microbiology and Immunology
|February 1, 1992
PubMed
Summary

Peptostreptococcus micros is frequently found in periodontitis patients and persists despite treatment. Further research is needed to determine effective methods for eradicating this potential oral pathogen.

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Area of Science:

  • Microbiology
  • Periodontology
  • Oral Health

Background:

  • Peptostreptococcus micros is a known pathogen in various infections.
  • Its role in progressive periodontitis has been investigated.
  • Understanding P. micros prevalence is crucial for periodontal disease management.

Purpose of the Study:

  • To examine the association between Peptostreptococcus micros and periodontitis.
  • To determine the prevalence and proportion of P. micros in different periodontitis patient groups.
  • To assess the efficacy of current treatments in eradicating P. micros.

Main Methods:

  • Isolation and identification of P. micros from subgingival samples using anaerobic culture.
  • Cross-sectional study of 907 advanced adult periodontitis, 127 early-onset periodontitis, and 12 localized juvenile periodontitis patients.

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  • Longitudinal study of 91 adult periodontitis patients on maintenance therapy, including treatment efficacy assessment.

    • Main Results:

    • P. micros prevalence ranged from 58-63% across periodontitis patient groups.
    • P. micros constituted 12-15% of total viable counts in culture-positive patients.
    • P. micros was significantly more prevalent in active versus inactive disease sites (47% vs 14%) and resistant to debridement and chlorhexidine irrigation.

    Conclusions:

    • Peptostreptococcus micros is a potential pathogen in adult periodontitis.
    • Current mechanical and antimicrobial treatments are insufficient for complete eradication.
    • Effective strategies for subgingival P. micros elimination require further investigation.