We got some small-sized dental chews from Pedigree a while back when our boxer was still a puppy, and we gave him one of those sticks. He did not want to eat for almost 2 days after that. We checked the instructions on the back, and it said only for adult dogs in small print. After that, we do not give him any of these dental products. I think that chew toys especially the ones with ropes are a good way to clean their teeth. If you want them to have that fresh mint breath, then you need to remember that it's a dog, not a human and dogs generally have no problems with their breath not smelling like mint.