Tehran University of Medical Sciences Iranian Journal of Microbiology 2008-3289 5 4 2013 12 15 391 395 EN Mohan-Kumar Pasupuleti St. Joseph Dental College, Duggirala, Eluru, Andhra Pradesh, India. Ravindra-Reddy Nagireddy CKS Teja Institute of Dental Sciences, Chadalawada Nagar, Renigunta Road, Tirupathi (AP), India. Roopa Dinahalli CKS Teja Institute of Dental Sciences, Chadalawada Nagar, Renigunta Road, Tirupathi (AP), India. Deepa Anumala CKS Teja Institute of Dental Sciences, Chadalawada Nagar, Renigunta Road, Tirupathi (AP), India. Avula Kishore Kumar CKS Teja Institute of Dental Sciences, Chadalawada Nagar, Renigunta Road, Tirupathi (AP), India. Vinay Chavan Meghana Institute of Dental Sciences, Nizamabad, Andhrapradesh, India. 2015 10 16 Background and Objectives: Gingival and periodontal diseases are associated with specific bacterial infections. The main aim of the study was to know whether the periodontitis is associated with an increased risk for acute myocardial infarction (AMI) and to know the distribution of Porphyromonas gingivalis in patients with acute myocardial infarction associated with chronic periodontitis and acute myocardial infarction Groups. Materials and Methods: Out of 50 patients, 20 were diagnosed as acute myocardial infarction associated with chronic periodontitis (Group I), twenty patients were suffering from AMI (Group II) and 10 patients were healthy (control Group III). Results and Conclusion: Periodontal pathogens were identified by phenotypic, enzymatic and hybridization methods. The total bacterial load and the number of Porphyromonas gingivalis pathogens were more in Group I when compared to Group II and Group III. Thus, the present study confirmed an association between periodontitis and AMI. https://ijm.tums.ac.ir/index.php/ijm/article/view/494 https://ijm.tums.ac.ir/index.php/ijm/article/download/494/270