Putative periodontal pathogens in the subgingival plaque of Sudanese subjects with aggressive periodontitis

Highlights • The article describe the prevalence of putative periodontal pathogens in high risk population for aggressive periodontitis (AgP) using qPCR • The association of the bacteria with the cases of AgP depend on the detection threshold level • Pathogen of the red complex particularly T. forsythia and T. denticola had a high prevalence (>70%) in AgP cases at all detection levels, while P. gingivalis was more prevalent in case at the lowest detection threshold • actinomycetemcomitans was identified less frequently than the other bacterial species with no difference in its prevalence between cases and controls.