I was concerned when I saw the grey, discolored molar in the back of my dog's mouth and I immediately decided I was going to start brushing her teeth. A trip to the local pet store gave me many choices of what to buy. There was a toothbrush, as well as a fingertip brush. I chose the kit with both. It also included the peanut butter flavored toothpaste, which I hoped my treat loving pup would enjoy.