Priced at $40 USD, the Fire TV Stick is a bit more expensive than Google's $35 Chromecast, but $10 cheaper than the already-affordable Roku Streaming Stick âlike other typical set-top boxes, the standard Fire TV is available for $100.
The precise question was: Is a dog's mouth cleaner than a human's? The answer to that is no, too, and basically for the reasons you've already cited. As we all know, dogs aren't particularly fussy about where they put their tongues or what goes into their mouths.
Human toothpaste has chemicals that can be harmful or even toxic to your dog...it's not a good idea to use it at all. There are some great toothpastes specifically for dogs out there! In between brushings I use baby carrots to help keep the teeth clean.