title: Porphyromonas gingivalis prevalence related to other micro-organisms in adult refractory periodontitis.
abstract: 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.
authors.affiliation: Institute of Microbiology, University of Catania, Italy.
authors.forename: A M
authors.initials: AM
authors.lastname: Lo Bue
authors.forename: G
authors.initials: G
authors.lastname: Nicoletti
authors.forename: M A
authors.initials: MA
authors.lastname: Toscano
authors.forename: B
authors.initials: B
authors.lastname: Rossetti
authors.forename: G
authors.initials: G
authors.lastname: Calì
authors.forename: F
authors.initials: F
authors.lastname: Condorelli
mesh_terms: D000328:Adult; D000368:Aged; D015373:Bacterial Typing Techniques; D001438:Bacteroidaceae / Q000145:classification / Q000302:isolation & purification; D016866:Bacteroidaceae Infections / Q000453:epidemiology*; D003773:Dental Plaque / Q000382:microbiology; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D010462:Peptostreptococcus / Q000302:isolation & purification; D010518:Periodontitis / Q000382:microbiology*; D010519:Periodontium / Q000473:pathology; D016966:Porphyromonas gingivalis / Q000302:isolation & purification*; D014018:Tissue Distribution