 If you have problems with the gums or a bad tooth, an abscessed tooth, the dog or the cat or whatever the animal and baby has, that could cause a problem as well. You know, heart problems with animals happen a lot, not because as much of their heart, but it gets created because they have bad gums or infected gums. So you want to make sure that you're cleaning your pet's teeth and don't ever, ever, ever use human toothpaste.