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Infect Immun. 1988 September; 56(9): 2392-2399

Natural occurrence of black-pigmented Bacteroides species in the gingival crevice of the squirrel monkey.

Periodontal Disease Research Center, College of Dentistry, University of Florida, Gainesville 32610.

ABSTRACT

The objective of this study was to determine whether the squirrel monkey (Saimiri scuireus) is indigenously colonized with black-pigmented bacteroides (BPB) resembling human Bacteroides gingivalis and Bacteroides intermedius (suspected periodontal pathogens) and to determine the usefulness of the squirrel monkey as an in vivo model for studying colonization by putative pathogens. We assayed the subgingival plaques of 138 monkeys of various ages and in four different colonies for the presence of anaerobic BPB microorganisms. We also tested half the animals for the presence of Actinobacillus actinomycetemcomitans. Clinical indices and levels of serum antibody to B. gingivalis were recorded. We detected BPB in 50% of the animals and A. actinomycetemcomitans in 69% of the animals. The presence of BPB was generally associated with increased age, increased gingival index, presence of calculus, and increased levels of serum antibody. These data indicate that the squirrel monkey may be a good model for studying the parameters of natural infection of the gingival crevice with suspected periodontopathogenic BPB microorganisms.

This article has been cited by other articles:

• Marcotte, H., Lavoie, M. C. (1998). Oral Microbial Ecology and the Role of Salivary Immunoglobulin A. Microbiol. Mol. Biol. Rev. 62: 71-109 [Abstract] [Full Text]