Derita Malcom had a recent revelation—one profound enough that her two adolescent kids hear about it every night. "I preach: 'Take care of your teeth,'" she explains. Removing her upper denture before bed, Malcom, 49, tells her kids, "Look at mama's teeth" and the damage caused by gum disease. "I had such a fear of the dentist that I really neglected my mouth," says the elementary school secretary from Chesterfield, Va. The consequences are not limited to her mouth.
Malcom's diabetes may have been harder to manage because of her long neglect of oral health. Before she underwent a series of dental procedures last year, Malcom's A1c level, which reflects blood sugar control, was far above the safe range. Now, since she has a new dedication to home care and is nearing the end of her dental work, Malcom's sugars are closer to normal. "I didn't make the connection that it could improve my diabetes," she says. She's not alone.
Three in four American adults have at least mild periodontal (gum) disease, or gingivitis. More severe disease, or chronic periodontitis, may affect as many as 30 percent. Regardless of severity, gum problems can be quite stealthy; pain is minimal and bleeding or reddened gums may be the only sign. Yet disregarding oral health could have serious overall repercussions. Recent research suggests that uncorrected gum issues make blood sugar more difficult for diabetics to control. Diabetes, in turn, can cause or worsen gum disease. "It's a two-way street," says Susan Karabin, president of the American Academy of Periodontology. The underlying mechanisms are not fully understood, but gum disease involves chronic inflammation—which can trigger insulin resistance, a hallmark of diabetes—and also bacterial infection. "Periodontal disease creates the wound that allows [oral bacteria] to gain access to the rest of the body," explains Steven Offenbacher, director of the Center for Oral & Systemic Diseases at the University of North Carolina.
People with gum disease may also be more likely to have a heart attack, stroke, or thickening of the arteries. Again, the culprits may be inflammation, a major factor in cardiovascular disease, and chronic low-level infection. Oral bacteria have been found in arterial plaque and can induce a process that leads to blood clots.
The flip side, says Karabin, is that "a healthy mouth means a healthy body." Research published last year in the New England Journal of Medicine found that blood vessel function improved significantly in patients given intensive treatment for severe periodontitis, compared with those who had only basic plaque removal and polishing.
Cliff Sloan is quite literally taking such findings to heart. After the Chevy Chase, Md., resident had a heart attack eight years ago, his internist prescribed medication, maintenance of healthy habits—Sloan, now 50, was already a runner with a healthy diet—and an aggressive approach to oral health, including treatment for receding gums. Since then, Sloan, the publisher of the Web magazine Slate, has alternated every three months between visits to his regular dentist and intensive cleanings by a periodontist, or gum disease specialist. "The stakes are just too high" to ignore the apparent connection, says Sloan.
Chronic disease is not the only state that warrants extra attention to oral health. Infection control is critical to surgical patients, for example, and a dentist's or periodontist's sign-off is not infrequently required before patients proceed to the or, especially for heart or orthopedic procedures. Hormonal and developmental changes, too, can boost a person's risk of oral problems. Adolescents often have gingivitis due to a combination of raging hormones, orthodontia, and lax oral hygiene. Add an unhealthful habit—a study in the Journal of the American Medical Association this month found an increase in gum disease in young adults who were heavy users of marijuana—and the odds of oral health problems worsen still.