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Distribution of Actinobacillus actinomycetemcomitans and Porphyromonas gingivalis by Subject Age
Author(s) -
Savitt Eugene D.,
Kent Ralph L.
Publication year - 1991
Publication title -
journal of periodontology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.036
H-Index - 156
eISSN - 1943-3670
pISSN - 0022-3492
DOI - 10.1902/jop.1991.62.8.490
Subject(s) - actinobacillus , porphyromonas gingivalis , dentistry , periodontitis , age groups , medicine , demography , sociology
T he possible associations between periodontitis subject age and the distribution of Actinobacillus actinomycetemcomitans and Porphyromonas gingivalis were examined using an extensive data bank of subgingival plaque specimens analyzed using DNA probes. The results suggest that A. actinomycetemcomitans is strongly related to subjects in the youngest age group (10 to 19 years) with decreasing prevalence and concentration levels in older age groups. In contrast, P. gingivalis showed a reverse relationship to subject age with highest prevalence and concentration levels in older subjects (30 years and older) compared to subjects in younger age groups. Statistical testing of these relationships were highly significant. ( P < 0.0001). J Periodontol 1991; 62:490–494 .