I think it is quite normal...

Charlotte has perfect teeth and the front ones looked like they were going to bust out of the gum face lol Rather then coming out of the bottom of it.
I think it is just the way it looks sometimes.
They broke through at the bottom of the gum face and since growing out are perfectly normal, she doesnt have buck teeth or the like and they work perfectly

If you are worried Id go and see the dr but really, their mouth and teeth are growing and changing everyday - their teeth look different everyday