Chewing on certain types of bones and rawhides can help reduce tartar and keep the gums healthy. Every dog chews a bone differently. Some are gulpers. They swallow large pieces of the bone. Gulpers generally don't improve their teeth and don't do well with bones/rawhides. But calm chewers can benefit from a good American-made plain rawhide, bully stick, yak milk bone, ostrich tendon, or other animal-parts chew. (My dogs chew them outside.)
Never offer cooked bones since they splinter off in dangerously sharp pieces that are serious trouble for a dog if swallowed. It's best to keep a close watch on an animal while it is chewing any bone, to avoid problems. And consider throwing out the bone before it becomes small enough to swallow whole.
I do not recommend offering compresses vegetable/wheat bones since these add wheat or soy to a dog's diet. There are better ways to keep a dog's teeth clean and keep a dog health, including good moist food, brushing, and animal-product chew treats.
Dr. Royal has formulated a new line of raw food available by prescription for kidney and liver conditions. Click here to learn more.