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Related Experiment Videos

[Quantifying bacteriological findings in the subgingival flora].

H P Müller1, D E Lange, R F Müller

  • 1Poliklinik für Parodontologie Westfalische Wilhelms-Universität Munster.

Deutsche Zahnarztliche Zeitschrift
|April 1, 1990
PubMed
Summary
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Quantitative bacteriological data for Aggregatibacter actinomycetemcomitans-associated periodontitis showed high reproducibility using standardized paper point sampling. However, subgingival plaque

Area of Science:

  • Periodontology
  • Microbiology

Context:

  • Periodontitis is a complex oral disease often associated with specific bacterial pathogens.
  • Accurate assessment of bacterial load and composition is crucial for understanding disease progression and treatment efficacy.
  • Aggregatibacter actinomycetemcomitans (Aa) is a key pathogen implicated in aggressive forms of periodontitis.

Purpose:

  • To investigate the variability of key bacteriological parameters in untreated Aggregatibacter actinomycetemcomitans-associated periodontitis.
  • To assess the reproducibility of quantitative microbiological data obtained through standardized sampling methods.
  • To compare morphological composition of subgingival plaque samples collected via different methods.

Summary:

  • Bacteriological parameters, including total bacterial counts, Aggregatibacter actinomycetemcomitans counts, and spirochete proportions, were analyzed in 25 periodontitis patients.

Related Experiment Videos

  • Subgingival plaque samples were collected twice within six weeks using paper points for cultivation and curettes for morphological analysis.
  • Standardized paper point sampling demonstrated high reproducibility for quantitative bacteriological data, while morphological composition showed significant variability.

    • Impact:

    • Highlights the reliability of standardized paper point sampling for quantitative microbiological assessments in periodontitis research.
    • Indicates potential limitations in assessing subgingival plaque morphology due to sampling method variability.
    • Informs future research methodologies for accurate bacterial analysis in periodontitis.