Hi Acroyali,
In regards to your comment “But if they yawn or pant and you get a glimpse of gross stuff on the INSIDE of the teeth, chewing is their best bet to get their teeth cleaned up.”
You can train your dog to be brushed inside their teeth. I trained mine.. At times he doesn’t like it but he puts up with it.
When my pup chews his toys I don’t see his back teeth getting any chewing action. With a toothbrush you can pinpoint all the areas that need to be cleaning. Including the gums and the the inside of the teeth all the way in the back.
