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  • Title: Comparative detection frequency of 6 putative periodontal pathogens in Sudanese and Norwegian adult periodontitis patients.
    Author: Ali RW, Bakken V, Nilsen R, Skaug N.
    Journal: J Periodontol; 1994 Nov; 65(11):1046-52. PubMed ID: 7853128.
    Abstract:
    Twenty-five sudanese and 18 norwegian adult periodontitis patients were selected to participate in this study. The purpose was to compare cultivation results of Porphyromonas gingivalis, Prevotella intermedia, Actinobacillus actinomycetemcomitans, Fusobacterium nucleatum, and Capnocytophaga species as well as various enteric rods in both populations. In addition, DNA probe analysis was used to identify P. gingivalis, P. intermedia, A. actinomycetemcomitans, F. nucleatum, and Bacteroides forsythus in the Sudanese patients and results were compared with those obtained by cultivation. The paper point technique was used to sample 99 sites in the Sudanese group (4 paper points/site) and 119 sites in the Norwegian patients (3 paper points/site). In the Sudanese subjects, the fourth paper point was used for the DNA probe analysis. The chi-square test and the Wilcoxon signed rank test were used to test for statistically significant differences between Sudanese and Norwegian cultivation results as well as between cultivation and DNA results in the Sudanese group. Cultivation results indicated that the Sudanese subjects had significantly lower prevalence of P. gingivalis, P. intermedia, and F. nucleatum (P < 0.01), significantly higher prevalence of Capnocytophaga species (P < 0.05), and similar prevalence of A. actinomycetemcomitans. Almost all Sudanese subjects tested positive for various enteric rods, while none of the Norwegians did so. The extent to which unrestricted use of antibiotics and transport media influenced the levels of enteric species is not known, however.(ABSTRACT TRUNCATED AT 250 WORDS)
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