Scientists in the research was established such a link. In carious teeth, inflamed gums contain a huge amount of bacteria that produce toxins. These substances are being absorbed into the blood to fall on the walls of blood vessels in the heart. The infection spreads through the root canals in the jaw bone, destroying it, such teeth often have to be removed. A constant source of infection reduces immunity worsens chronic disease such as rheumatism, affects the heart muscle, leading to ischemia and occlusion of blood vessels of the heart. Therefore, timely access to a dentist, preventive examinations are one way of preventing diseases of the cardiovascular system.