•Brush and floss thoroughly at least once a day.
•Reduce the sugar ingestion frequency to a few events per day, best limited to main meals.
•Use fluoride in toothpaste, table salt, mouth rinse, or water.
•See your dental hygienist 2-4 times per year.
If you do not have excellent manual dexterity, use a good electric toothbrush (unfortunately expensive).
For more info see Healthy Teeth for your Whole Life
Polio was almost eradicated by vaccination
Lots of info to personally and publicly inform about vaccination