Another baby rabbit question!

Sorry to keep asking but I want to give Talullah the best after her crappy start to life

Can she go out on the grass yet if I slowly introduce it to her and will it help her teeth?
Problem is we don't know how old she is, we thought 14 weeks but vet said no way.

I would give her a few bits of grass first so she can get accustomed to it. Give her a little every day for a few days then it should be safe to put her outside.

Hi,
I agree with tonibun, little bits to start with and gradually build up. Don't let her gorge herself when she first goes out as it could upset her tum.
I believe grass wears their teeth down just as much as hay does. I thought that was odd at first because grass seems much softer than hay but I read a post on here somewhere explaining that the structure of grass isn't smooth it's quite rough, and it wears teeth down as rabbits munch.