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Subgingival temperature (III). Relation to microbial counts.

A D Haffajee1, S S Socransky, C Smith

  • 1Forsyth Dental Center, Boston, MA.

Journal of Clinical Periodontology
|July 1, 1992
PubMed
Summary
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Higher subgingival temperatures correlate with specific bacterial shifts in periodontal sites. Increased levels of B. intermedius and P. micros were observed, while Capnocytophaga species decreased.

Area of Science:

  • Oral microbiology
  • Periodontology
  • Thermobiology

Background:

  • Subgingival temperature is a potential factor influencing the oral microbiome.
  • Understanding bacterial dynamics in relation to temperature is crucial for periodontal health.

Purpose of the Study:

  • To investigate the relationship between subgingival temperature and the prevalence of specific bacterial species in periodontal pockets.
  • To determine if subgingival temperature influences the composition of the subgingival microbiota and its association with periodontal parameters.

Main Methods:

  • Collected clinical data and subgingival temperature measurements from 35 subjects at 6 sites per tooth.
  • Sampled subgingival plaque for bacterial enumeration using DNA probes for specific species, including A. actinomycetemcomitans, B. forsythus, B. gingivalis, and others.

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  • Analyzed 1581 samples, correlating bacterial proportions with subgingival temperature and longitudinal attachment level changes.

    • Main Results:

    • Higher mean subgingival temperatures were significantly associated with increased proportions of B. intermedius I and P. micros, and decreased Capnocytophaga sp.
    • Elevated proportions of B. intermedius I and II, A. actinomycetemcomitans serotype a, and B. gingivalis were found at warmer sites.
    • Capnocytophaga sp. were more prevalent at cooler subgingival sites.

    Conclusions:

    • Subgingival temperature is a significant factor associated with the distribution of key periodontal bacteria.
    • Specific bacterial species show distinct temperature preferences within the subgingival environment.
    • These findings may have implications for understanding periodontal disease pathogenesis and treatment.