My dogs all love to chew rawhides and I brush their teeth occasionally. I've been slacking on brushing their teeth lately though.

Buster is the only one I've had trouble with when it comes to teeth. His trouble began before I got him. When I got him his teeth were black. We immediately got him an appointment at the vet to have his teeth cleaned. He had to have a lot pulled. About a year later they had to go in and pull his k-9's because they were causing him to have sinus problems. His teeth aren't in too good of shape, all because of the years of neglect he had before I got him.