I know the dogface puffers' teeth will never stop growing, and if they become too large they won't be able to eat anymore. I had one, and the crappy LFS
told me to either file his teeth, or have a vet file them or he would starve to death. 8O As tame as he was, I couldn't imagine him letting me file his teeth. The vets that I called thought I was nuts. I was devastated because he was my favorite.
Another, much better, LFS
assured me his teeth were fine, but told me a variety of things to feed him that would wear his teeth down naturally. I don't remember what they were called, but I'm going there tomorrow ...so I'll ask and post it then.
Don't worry, I'm sure yours is nowhere near danger.