Can I use human toothpaste on my dog? - Animal Hospital of Statesville

It smells better to you, but it doesn't taste good to the dogs. They don't like that foamy, frothy stuff that happens with the toothpaste. You need to use pet toothpaste for the pet so that, when they swallow it, it will not bother them. And some of the human toothpastes have xylitol in them, which can be fatal to a pet in high enough quantities.

Can I use human toothpaste on my dog? - Brooks-Falls Veterinary Hospital

We don't want to use human toothpaste because the dogs will be ingesting the toothpaste when we put it on their teeth, and human toothpaste can be toxic. They're not meant to be ingested. They can have xylitol in it, so stay away from human toothpaste.