Plus medical studies have shown that gums are a direct delivery system for plaque that clogs arteries. Let's also not forget common sense. Look at any skull. There are many direct openings to the brain. Constant infections can travel to the brain as well as the eyes, nasal cavities etc. It is not just about healthy teeth and cavities. Plus teeth and chewing is essential for proper digestion which is how (oversimplified) food is broken down for our bodies to retrieve its nutrients.
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