How are heart disease - dental health related?

Good question: Poor dental health is associated with a significantly higher risk of heart disease, particularly atherosclerotic disease of the vessels, as well as valve disease of the heart.

Bacterial infection: Inflamed gums, or gingivitis, can increase the risk of heart disease and heart attacks. Flossing daily and keeping regular dental checkups can decrease this risk.

Heart Disease/Stroke: Previous research has shown a "possible" correlation of periodontal disease/chronic tooth infection with heart attack and stroke. However a recent paper has said the statement is a bit too strong. Time will tell as more data in compiled in the future. Personally, i believe wherever inflammation is in the body can't be a good thing.