Hi,

I have this ATN since ages.

Atypical is called because here should be found the cause. I am afraid; you will wait very long time to find it.
I have lost four (4) healthy teeth's and on the end it wasn't the cause.
I am still looking to find the cause.

As I am in Europe, the only information I can give you:
in Oxford, UK ( is Medical Research Centre for TN or ATN.
I could go there, but need reference from my Neurologist. Nobody gave me references. To pay alone, I can't do that. I have lost all just because of this ATN.
If you can go there: it is the best solution. Otherwise you will suffer very long time.

Wish you good luck,
Bozena