When parents think about their child’s dental health, they usually think about brushing, flossing, check-ups, and cavity prevention. These are important for good dental health, but what parents may not know is that these healthy habits are setting their child up for great overall health throughout their lifetime.
A recent study published in the International Journal of Cardiology found that poor oral health in childhood, especially severe tooth decay and gingivitis, was associated with a higher risk of atherosclerotic cardiovascular disease in adulthood. That includes conditions such as ischemic heart disease, heart attack, and ischemic stroke (Nygaard et al., 2026).
At Lewis Estates Dental Centre, we take a whole health approach to dentistry. Your mouth does not exist in isolation. It is connected to the rest of your body, and healthy habits in childhood can help support long-term wellbeing.
Here is what this new study found, and what it may mean for your family.
Researchers Found a Link Between Childhood Oral Health and Adult Heart Health
This large Danish study included 568,778 individuals and followed their health over time. Researchers found that severe childhood dental caries and higher gingivitis scores were associated with an increased risk of atherosclerotic cardiovascular disease in adulthood (Nygaard et al., 2026).
They also found that children with persistent or worsening oral disease over time had a higher incidence of cardiovascular disease later in life than those with low and stable levels of disease (Nygaard et al., 2026).
This does not mean childhood cavities or gingivitis directly cause heart disease. But it does add to growing evidence that oral health and overall health are closely connected.
Inflammation and Oral Bacteria May Help Explain the Connection
Researchers believe one possible explanation is inflammation. Gingivitis is an inflammatory condition, and chronic inflammation has already been linked to cardiovascular disease (Nygaard et al., 2026).
The study also suggests that oral bacteria may play a role. When oral health problems are ongoing, bacteria and inflammation in the mouth may affect the body beyond the teeth and gums. Researchers also noted that oral health habits often begin in childhood and continue into adulthood, which may help explain the long-term connection (Nygaard et al., 2026).
For families, this reinforces an important message: healthy gums and teeth are part of supporting whole-body health.
To learn more about our philosophy around children’s dentistry at LEDC, visit our family services page.
What This Means for Parents
This study is not meant to scare parents, it’s meant to highlight the value of prevention!
Childhood oral health is about more than avoiding cavities in the moment. It can also help children build healthy routines, reduce inflammation, and create habits that support long-term wellbeing.
This is one reason regular dental visits are so important. They give your child’s dental team the chance to identify problems early, support healthy development, and help your family stay ahead of bigger issues.
Small Daily Habits Can Make a Big Difference
The good news is that a few simple habits can go a long way in supporting your child’s oral health:
- book regular dental exams and cleanings
- encourage brushing twice a day with fluoride toothpaste
- help children floss as recommended
- limit frequent sugary snacks and drinks
- pay attention to signs like bleeding gums, sensitivity, or visible decay
If your child seems prone to cavities or has gums that bleed often, it is worth having those concerns checked early. Early support is often the easiest and most comfortable path forward.
Why a Preventive, Whole Health Approach Matters
It is important to keep this research in perspective. The study found an association, not proof of causation. The authors were clear that more research is still needed, and that other lifestyle and health factors may also play a role (Nygaard et al., 2026).
Still, the takeaway is meaningful. Childhood oral health deserves to be taken seriously. A preventive approach helps protect your child’s smile today while also supporting their overall health over time.
At Lewis Estates Dental Centre, we believe dental care should look at the bigger picture. A healthy smile is part of a healthy body, and early care can make a lasting difference.
For more guidance on protecting your child’s smile, check out our blog on cavity prevention.
Book Your Child’s First Dental Appointment Today at Our West Edmonton Clinic!
If you are looking for a family dentist who supports your child’s smile and their overall health, we are here to help. At Lewis Estates Dental Centre, we take time to understand the full picture and provide care that feels preventive, personal, and reassuring.
Book an appointment at Lewis Estates Dental Centre so we can help support your child’s oral health, overall health, and confident smile.