Seriously, if dogs eating dry food have to get their teeth cleaned all the time, what makes you think that canned food is worse? Kibble does not clean teeth. When a dog crunches down on kibble, it explodes. It does not scrape along the surface of the tooth all the way to the gum line, and if by some miracle it did, it would slice up the gums too. Canned food does not rot teeth. Carbs are responsible for the junk left on teeth. Kibble is carbs.
If you really want clean teeth, you let your dog gnaw on something like a meaty bone that will scrape the whole length of the tooth and work under the gum line too, or you learn how to brush.
