09/06/2026
This is the one that made me stop and read it twice.
A systematic review pooled seven cohort studies covering close to 1.9 million people, followed for anywhere from three to fifteen years. It asked a narrow question: do people who take care of their gums have fewer strokes?
The answer leaned yes. Regular dental care was associated with lower stroke risk than episodic or no care. Routine cleanings showed the strongest and most consistent protective signal of anything they looked at. And brushing frequency showed a graded relationship, meaning the risk dropped at two or more brushings a day.
I want to be careful with what this does and doesn't prove. These are observational studies. People who keep up with dental visits tend to keep up with other things too, and no study design fully separates that out. Nobody should read this as brushing prevents strokes.
But here's what I keep coming back to. The two interventions with the best signal, a cleaning and brushing twice a day, are the two cheapest and least invasive things in all of dentistry. Whatever else is true, that's a remarkably low bar for a possible upside.
https://www.drbicuspid.com/dental-hygiene/oral-systemic-link/brain/article/15829356/this-may-reduce-stroke-risk
Jackson Family Dentistry, 2033 Ogden Avenue in Downers Grove. (630) 963-6750.