Smile Statistics: 3 Facts About Gum Disease You Might Not Know

August 17, 2026

Nose-to-shoulder view of woman pulling back upper lip to reveal dark red gums

Many people think of dental health only in terms of their teeth, but their connective tissues are equally important. After all, your gums help provide a firm foundation that holds your teeth in place, which is why advanced-stage periodontal disease, periodontitis, is the leading cause of permanent tooth loss in adults.

But many patients don’t know much about this condition or how to prevent it. Continue reading to learn 3 things you might not already know that can help you avoid gum disease!

Fact #1: It Is a Common Concern

If your dentist found signs of gum disease during a routine examination, you might worry that you’ve contracted a rare condition that doesn’t affect many people or feel guilty for having developed a problem.

But the truth is that periodontal disease is considered extremely common, and sources estimate that it affects nearly half of all U.S. adults who are 30 years or older. It tends to affect men more than women, with roughly 50% of males and about 35% of females showing signs of having a problem. Those rates only increase with age, as about 60% to 70% of those who are 65 years or older experience periodontal concerns.

Fact #2: It Is Contagious

Not only is this disease incredibly common, but it’s also contagious. Periodontal issues occur when the unhealthy microbes in your mouth overpower the benign ones and form plaque on your enamel that can penetrate your connective tissues. This triggers an infection that only worsens the longer it remains untreated.

Unfortunately, the disease-inducing bacteria can spread from one mouth to another through shared foods, drinks, utensils, or kissing. These germs might also be introduced to your mouth’s microbiome if you use someone else’s toothbrush or forget to replace yours after 3 to 4 months.

Fact #3: It Can Be Genetic

Many people are also surprised to learn that they might be genetically predisposed to developing gum disease. Although you might not inherit the condition directly, your bloodline might pass along other medical conditions, like diabetes, that significantly increase the risk of developing periodontal problems. Your genes also control your immune response, which can affect your body’s ability to fight off the infection.

Thankfully, gum disease can often be prevented despite these factors. Most people can help avoid it by brushing and flossing twice daily, reducing their consumption of overly sugary foods, and visiting their dentist every 6 months for a routine checkup and cleaning.

Meet the Author

Dr. Caroline Irons takes the time to get to know her patients so she can deliver customized services to meet their unique needs. She earned her Doctor of Dental Medicine from the University of Mississippi Medical Center and has remained committed to continuing education through programs such as Spear and TeamACT Education Study Clubs. Today, she offers a comprehensive menu of treatments, including gum disease therapy, using advanced technology to deliver accurate, long-lasting results. You can request an appointment on the website or call (208) 322-5655.