I have a friend in Florida who's GTP lost his teeth around two years of age and even though he did regenerate the majority of them back, some did not including one of his front fangs. My friend later found out that the snake was calcium deficient and the vet said it could be genetic or hereditary. At that age he became more aggressive as well which was attributed to sexual maturity. I don't have GTP's so I personally know nothing about them, but I have several friends with them. I will ask around some more and see if anyone has any other experience with this situation. He told me some other things but you said his/her mouth looks clean and healthy so the "osteonecrosis" he spoke of sounds unlikely.  (as does a parasite or bacteria) 

Hi, thanks for the quick answer - I've been looking online and calcium deficiency keeps cropping up. Vali is 2 1/2 right now but very tame at the moment.

I couldn't see anything in her mouth that looked wrong other than the lack of teeth - I'll try to get a photo later if she'll cooperate.

It sounds like boas\pythons lose their teeth a lot more frequently than we think (http://www.smuggled.com/snatee1.htm) especially when feeding and that they should grow back.  A couple of my chondros have lost a tooth or two (that I've noticed) and all have seem to grow back.  I would give it some time and see if they do grow back before you start intervening (added calcium, vet, etc.).  However if they truly are all gone then there might be something else going on.

Did you find out anything new? Any changes in your baby? 

Hi, she seems absolutely fine - still no sign of infection or anything so I'm going to wait a little while and if they dont come back I'll try a calcium suppliment when I feed her and keep an eye on her in the mean time :)