I've never used teething rings. When I've had pups (I breed occasionally), I always tell my puppy people pig ears work really well. Plus, because they're tasty, they're more likely to chew on them than some stinky old shoe lol. They have knuckle bones and big cow femurs you can get at Walmart. Because I have kids, I don't let my dogs chew on anything that isn't "edible" because otherwise they may get the idea that the kids' toys are their toys too. Anything on the ground and is tasty is theirs though!