Interdental Supragingival Plaque—A Natural Habitat of Actinobacillus actinomycetemcomitans, Bacteroides forsythus, Campylobacter rectus, and Prevotella nigrescens

摘要: The aim of this study was to test the hypothesis that suspected periodontal pathogens form a minor component supragingival plaque individuals without diseases. Twenty-one dental hygienist trainees with mean age 23.5 years were twice sampled for interdental between 1st and 2nd molars in all quadrants. samples assessed Actinobacillus actinomycetemcomitans, Bacteroides forsythus, Campylobacter rectus, Porphyromonas gingivalis, Prevotella intermedia/Prevotella nigrescens group organisms. Bacteria predominantly P. showed both highest prevalence (100%) colonization density investigated species. Seven 21 harbored A. actinomycetemcomitans. Serotypes a, b, c found three each, while serotype e present one sample. Three subjects had two different actinomycetemcomitans serotypes. forsythus C. rectus detected 10 (48%) nine (43%) subjects, respectively. cell numbers accounted approximately 0.01% 1% flora. In contrast, gingivalis only single sample, which addition B. (serotypes b e), intermedia. These results suggest bacteria are not "exogenous pathogens", but amphibiotic, opportunistic microorganisms may have natural habitat interproximal area molars.