Study links tooth loss and heart disease

Tooth loss in adults may be linked to a greater risk of heart disease, a recent study shows.

Among study participants possessing all of their natural teeth, 4.7 percent had heart disease.

Compared to this group, participants missing one to five teeth experienced a 21 percent increase in the presence of heart disease. Heart disease increased by 60 percent among those missing six to 31 teeth, and by 81 percent among those with no remaining natural teeth. The study was published in the American Journal of Preventive Medicine.

“While more study is needed, research indicates that oral health could play a role in improving overall health and, hopefully, in lowering total health costs,” says Marilynn Belek, DMD, chief dental officer and executive vice president for Delta Dental. “Research like this is a good reminder that a healthy lifestyle, including a strong oral health component, supports better overall wellness.”

Results of this study are consistent with other research that links gum (periodontal) disease and tooth loss to an increased risk of heart attack and hardening of the arteries (atherosclerosis). However, researchers note that these results do not prove that tooth loss causes heart disease, and that more research is needed.

The results reflect adjustments for a number of genetic and lifestyle factors, including smoking status, education, marital status, diabetes, alcohol consumption, high blood pressure, high blood cholesterol and body mass index, gender, race and ethnicity.