FB - yeah the dentist has said I need to keep an eye on the area, and first commented on it 18 months or so ago (6 monthly check ups).
I could be a bit precious, but as it is on my front teeth, I am more concerned than if it were my molars....it is only very very small though at the moment...but prevention etc rather than cure blah blah.
I actually havent used google about this...(but take your point!)...after some of the scary stories I encountered when I had the RSD in my leg. I did wonder that leaving paste in contact with teeth would be a good idea or not....too much flouride can damage gums as I recall, and it wasnt something Crashie suggested. He just suggested what I pasted (ha ha ha ha - see what I did there?!) into the above message!
I have a check up in a month, so will discuss it then.