Black-pigmented Bacteroides species and Actinobacillus actinomycetemcomitans in subgingival plaque of adult Kenyans.
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.
Dahlén
G
G
Department of Oral Microbiology, Faculty of Odontology, University of Göteborg, Sweden.
Manji
F
F
Baelum
V
V
Fejerskov
O
O
D000188:Actinobacillus / Q000302:isolation & purification*; D000328:Adult; D000368:Aged; D001431:Bacteriological Techniques; D001439:Bacteroides / Q000145:classification / Q000302:isolation & purification*; D003728:Dental Calculus / Q000473:pathology; D003773:Dental Plaque / Q000382:microbiology*; D003774:Dental Plaque Index; D004352:Drug Resistance, Microbial; D005881:Gingiva; D005888:Gingival Pocket / Q000473:pathology; D005891:Gingivitis / Q000473:pathology; D006801:Humans; D007630:Kenya; D008875:Middle Aged; D010512:Periodontal Index; D011897:Random Allocation