Distribution of 3 kinds of periodontal pathogens in subgingival plaques of patients with chronic periodontitis / 华西口腔医学杂志

ABSTRACT

<p><b>OBJECTIVE</b>To observe the prevalence of Porphyromonas gingivalis(Pg), Treponema denticola(Td) and Bacterides forsythus(Bf) subgingivally in diseased sites of chronic periodontitis (CP) patients.</p><p><b>METHODS</b>Samples of subgingival plaque were detected by 3 kinds of oligonucleotide DNA probe from 60 sites of CP patients and 10 healthy sites of 10 healthy people.</p><p><b>RESULTS</b>The positive rates of Pg, Bf and Td in patients were 91.67%, 90.00% and 95.67% respectively; Pg, Bf and Td were detected simultaneously in 83.33% patients and Pg, Bf and Td were found to be related with each other(P < 0.01).</p><p><b>CONCLUSION</b>Pg, Bf and Td were prominent periodontopathic bacteria and related each other, might exist in complexes in subgingival plaque and coaggretate together.</p>