Hi Christy,

You wrote:

>Always wait at least half an hour after eating fruits or anything acidic
>before brushing teeth. Some of the enamel dissolves while eating, actually
>stays in the mouth and re-attaches to the teeth. My dentist is a
>professor who teaches at university as well and explained at great length
>about why not to brush immediately after eating.

Now *that* got my brain cells arguing amongst themselves ;-)

I would have thought that delaying brushing would allow the fruit acids to
work for longer on the enamel, or are they quickly neutralised by saliva?

Also, how can the dissolved enamel stay in the mouth for so long when we
are constantly swallowing the stuff?

And how can enamel re-attach itself to the surface of the teeth when it is
originally formed from the inside? Does it not also undergo a chemical
change in the process of dissolving?

As you can see, dentistry is something I know little about, but I'm
genuinely interested in learning more about your dentist's theories. Has
he published any research about this, and do you have any references, or
even any more details?

I'm always keen to learn more about ideas that are not mainstream.

Thanks, Christy

Slainte,

Persephone