My 16, nearly 17 week old pup has just started to get her front adult teeth. When she had her milk teeth her jaw looked fine and didn't seem over or under shot but now her new front teeth seem to be quite far in front of the lower teeth and a bit goofy. To be fair the teeth are only just through so it's not easy to tell how well they will meet up. Can an over/under shot jaw only become apparent once the adult teeth come in? One of my older dogs has a slightly undershot jaw and when he is asleep his toungue pokes out and I have noticed the pup starting to do this too but I'm not sure if it's just because there are no teeth to hold it in!! 

Hi,
not sure what breed it is but remember the bottom jaw is the last to grow so a overshot should become right again, but i dont know if it rings true for all breeds.

Fiona x

Thanks, I didn't know about the bottom jaw being the last to grow. She is a Border Collie.