Works like Magic
Got the large one for my 2 year old springer who, despite my best efforts, had badly discoloured teeth and some obvious tartar. He loves it , chews it constantly, sneaks it outside and chews it in preference to the sticks he'd usually gnaw. The difference to his teeth is amazing. I wish I had before and after pics to show the improvement. Most of the the discolouration and tartar are gone. My vet is very impressed. He's only used it for a few weeks so it's a bit early to comment on durability but looks good so far. If he does destroy it I'll have no hesitation in replacing it. It's far cheaper than a dental treatment.