Heart Disease
A study shown that the bacteria and inflammatory protein cause periodontitis is enter into blood stream and cause the thickening of blood vessels wall commonly seen in heart disease and stroke.
Respiratory infection
is thought to rely in part on the aspiration of oropharyngeal flora into the lower respiratory tract and failure of host defense mechanisms to eliminate the contaminating bacteria, which then multiply to cause infection. It has been suggested that dental plaque may act as a reservoir of respiratory pathogens, especially in patients with periodontal disease. Increased risk of pneumonia and COPD.
Diabetes
According to the American Diabetes Association, people with diabetes are at higher risk for gum disease (severe gum infection with bone destruction). Gum disease can also affect the body’s blood sugar control. People with diabetes can have tooth and gum problems more often if their blood glucose stays high. High blood glucose can make tooth and gum problems worse. You can even lose your teeth.
Cancer
Chronic inflammation has been the rationale behind the association looking both at specific types of cancers and periodontal disease. Oral cancer has shown an increased risk of oral cancer with periodontal disease or tooth loss.