Saints often have crooked teeth bottom, but if it's something simple, not braces, but cutting the gums under anesthesia, I'd ask a vet-dentist about it. None of our Saints needed their gums cut, just lotsa chew toys.

If you don't mind drool, oh, take him! There's not much sweeter, but I'd be interested in a vet's opinion on his teeth. If he's not going to be a show dog, I doubt braces would be necessary, though if his jaw is too crowded, he may need some teeth pulled (which I can sympathize with, I had teeth yanked for the same reason, but then braces, too, to straighten out what I had left).