Yes it can be hereditary. Yes some dentists seen to thrive on cavities and find them more than other dentists. Yes flouride mouthwash is amazing; when I use it I can actually feel tingling in my teeth. Yes timing of brushing teeth is of utmost importance. And yes we must be careful what we eat inbetween brushings. I think everything has been said.
One dentist has the following notice hanging up by his dental chair:???? ??? ???????” ??” (Open wide your mouth and I will fill it) !!