
I'd say it's impossible to tell at this stage. I have one that had a scissor bite at 8 weeks, was level at 6 months, went slightly undershot by 18 months, then came back scissor by 2 and 1/2 years. So it just goes to show, anything can happen.
Just keep your fingers crossed and hope. :)
Dawn R.
PS Are you sure you mean undershot? I apologise if you are experienced in this, but it's a common mistake to think under is over and vice versa.
Undershot is where the bottom teeth/jaw are infront of the top teeth/jaw. Overshot is where the top teeth are too far infront of the bottom and there is no snug fit. Again, sorry if you already knew this.
Dawn R.