A common periodontal pathogen has an adverse association with both acute and stable coronary artery disease

► The association between angiographical findings and periodontal pathogens. ► A. actinomycetemcomitans has an adverse association with both acute and stable CAD. ► Serum IgA level against A. actinomycetemcomitans associates with acute CAD. ► The importance of oral microbiota in CVD risk assessment and therapeutics.