Objective : Analysis of the alleged connection between the periodontal and cardiovascular disease, with reference to periodontal pathogens as a risk factor for heart disease. Researching method : A research was carried out at Medline/Pubmed. Included criteria and researching strategy. The articles selection has been made taking into account key-terms appearing either in the title or in the summary. Experimental studies in animals, clinical prospective studies performed with a minimum sample size (>30) and studies written in English have been included. The rejected criteria were the following: clinical retrospective studies and/or studies carried out with a low sample size (n<30). Results : Within systemic diseases related to periodontal ones, the alleged link between periodontal and heart and circulatory disease has been one of the most investigated in recent times. Different authors consider the existence of a link between the diseases as such, inappropriate and implausible since both the diseases have risk factors in common (age, gender, smoking, diet, oral hygiene and diabetes). However, speculations about the origin of the diseases were raised when it was demonstrated that some bacteria species, bacteria proteins and lipopolysaccharide are present at the plaques of atherosclerosis that obstruct the coronary arteries. The mechanisms of this connection have been analyzed following an actualized review. Conclusion : Most of the experimental and clinical studies ensure that a positive association between periodontal disease and heart disease has been found, once the con-founder factors have been eliminated