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J Periodontol. 1992 Apr;63(4):274-9. doi: 10.1902/jop.1992.63.4.274.

Microbiology of healthy and diseased periodontal sites in poorly controlled insulin dependent diabetics.

Journal of periodontology

R L Mandell, J Dirienzo, R Kent, K Joshipura, J Haber


  1. Forsyth Dental Center, Boston, MA.

PMID: 1315389 DOI: 10.1902/jop.1992.63.4.274


A group of poorly-controlled insulin dependent diabetes mellitus (IDDM) patients were examined in a cross-sectional design for total microbial levels, microbial incidence, and the percent levels of selected periodontal microorganisms. These organisms were selected on the basis of prior reports that associated them with either periodontal disease or health. One periodontally-healthy and one periodontally-diseased site were examined in each IDDM patient. Increased levels of the periodontal pathogens Prevotella intermedia, P. melaninogenica spp., Bacteroides gracilis, Eikenella corrodens, Fusobacterium nucleatum and Campylobacter rectus (formerly Wolinella recta) were found at the periodontal diseased sites. Increased prevalence of the organisms P. intermedia, P. melaninogenica spp., and C. rectus were found at the diseased sites. A significantly higher percentage of P. intermedia was found at the sites exhibiting deep pockets and attachment loss.

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