Black-pigmented Bacteroides species and Actinobacillus actinomycetemcomitans in subgingival plaque of adult Kenyans.

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  • Institute of Epidemiology and Social Medicine
  • Department of Anatomy
A microbiological study was performed of the subgingival plaque on 2 sites in each of 20 adults originating from a rural area 40 km outside Nairobi, Kenya. The recovery rate of B. gingivalis was 70%, of B. intermedius 100% and of A. actinomycetemcomitans 40% of the subjects, and 50%, 90% and 28%, respectively, of the sites. The isolated strains exhibited similar biochemical characteristics and antibiotic susceptibility pattern as type strains of these species. The high recovery rate of these 3 bacterial species in adult Kenyans was a rather surprising finding, since pathological pocketing was found only sporadically. Furthermore, the results of 2 methodological approaches tested demonstrated that such microbiological studies can be carried out in countries with limited laboratory facilities.
Original languageEnglish
JournalJournal of Clinical Periodontology
Pages (from-to)305-10
Number of pages5
Publication statusPublished - 1989

    Research areas

  • Actinobacillus, Adult, Aged, Bacteriological Techniques, Bacteroides, Dental Calculus, Dental Plaque, Dental Plaque Index, Drug Resistance, Microbial, Gingiva, Gingival Pocket, Gingivitis, Humans, Kenya, Middle Aged, Periodontal Index, Random Allocation

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