With an older dog, once the vet got the tartar off, it might be discovered your dog needed some teeth extracted. Now
dogs do get along with this quite well, generally. It has even been known that
dogs who have had ALL their teeth removed to have a new lease of life, and their general health improve, when they are free from the pain, they often eat better and are fitter. Given some time, the tender gums harden up a lot, and quite often they can start to eat quite normally after a while.