My dentist was just telling me that he thinks that the bacteria that cause cavities protect from periodontal disease and vice-versa, such that the people (like me) who are relativly immune from cavities have periodontal problems? Is this a commonly accepted idea?
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Yeah, it is a commonly accepted idea. It does seem that dental disease it's an either or thing. Unusual to see both periodontal and cavities. Although I'm not so sure one is protective of the other. Why do some people have caries free mouths AND beautiful periodontal tissues? I'll tell you why, their mothers transferred benign oral bacteria to them as babies.
Fun fact, we are all born with sterile mouths. The bacterial populations usually come from mom, as determined from DNA studies.
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Due to nursing, or kisses in the mouth, or what? Very interesting!
My H has chronically bad teeth. I always assumed it was due to non-fluoridated water from birth to age 18. He is the worlds most anal brusher/flossed. Maybe he should add xylitol and a mouth rinse.