Porphyromonas gingivalis prevalence related to other micro-organisms in adult refractory periodontitis

New Microbiol. 1999 Jul;22(3):209-18.


Forty-six adult periodontal patients, selected on the basis of clinical examination, and 46 adult healthy subjects were examined. The subgingival plaque samples from one inflammatory and one non-inflammatory site of each periodontal patient were studied to determine Porphyromonas gingivalis prevalence related to other periodontal micro-organisms and to periodontal tissue destruction. The results showed Porphyromonas gingivalis as the main pathogenic micro-organism isolated in the inflammatory sites together with Bacteroides forsythus. Peptostreptococcus sp., Actinomyces sp. and Prevotella sp. were found as a normal oral flora in the healthy subjects. Fusobacterium nucleatum, Prevotella intermedia, Campylobacter rectus and Eikenella corrodens were detected both in inflammatory and in non-inflammatory sites of periodontal patients as well as in the healthy subjects.

MeSH terms

  • Adult
  • Aged
  • Bacterial Typing Techniques
  • Bacteroidaceae / classification
  • Bacteroidaceae / isolation & purification
  • Bacteroidaceae Infections / epidemiology*
  • Dental Plaque / microbiology
  • Female
  • Humans
  • Male
  • Middle Aged
  • Peptostreptococcus / isolation & purification
  • Periodontitis / microbiology*
  • Periodontium / pathology
  • Porphyromonas gingivalis / isolation & purification*
  • Tissue Distribution