If you had plaque on your teeth for 1 year will it affect your body and make you more at risk of heart disease?

Bacteria: Many studies have shown that there is a correlation between periodontitis and coronary disease. At a minimum, you're certainly more prone to decalcification and cavities on your teeth. See a dentist for a professional cleaning. http://www.webmd.com/heart-disease/features/periodontal-disease-heart-health

Of course: A growing number of research finds that bacteria, plaque and inflammation in your mouth are linked to heart attack and stroke. see your dentist, it may actually save your life.