Recent study revealed an association in germs in mouths and increased risk of heart disease. This study gave the clear indication that oral hygiene has effect on cardio-vascular health.

Researchers at the University at Buffalo analyzed data collected from 386 men and women (35 to 69 years of age) who had suffered a heart attack and
840 people free of heart problem. Researchers compared samples of dental plaque collected from 12 sites in the gums from both the groups. Researchers tested presence of six common types of periodontal bacteria and the total number of bacteria in the samples.

Data analysis revealed that number of each type of bacteria in mouth was much higher in heart patients as compared to healthy volunteers. Researchers found link between two species of bacteria, Tannerella Forsynthesis and Preventella Intermedia and higher risk of heart attack.

Lead researcher, Oelisoa Andriankaja, the University at Buffalo School of Dental Medicine said: "The message here is that even though some specific periodontal pathogens (germs) have been found to be associated with an increased risk of coronary heart disease, the total bacterial pathogenic burden is more important than the type of bacteria," said study leader Oelisoa Andriankaja.

She added: "In other words, the total number of 'bugs' is more important than one single organism."