“We are on well water so I have to get the fluoride treatment every time I get my teeth cleaned.”
I would suggest determining what the fluoride level is in the well water you consume and how much you consume before assuming this. I worked on many patients whose well water far exceeded what was considered optimal, often times resulting in fluorosis, which can cause brown intrinsic staining of teeth. They were actually harder than typical teeth with normal fluoride levels, but that unsightly brown mottled appearance was not attractive.
Agreed...try the banana next time; it's at least bearable.