I have found that if I provide Huey with a toothbrush with the enzymatic paste on it, he will chew on it all day. I buy the hard, cheap human brushes that are $.99 at the drug store. They last longer. He goes through 1 every week or 2. The vet was pleased with his oral care. This solution was great for both of us & was discovered completely by accident when I dropped a toothbrush. He will even bring his toothbrush to the bathroom so I will put the paste on it!
Huey the silkshire terrier brushes his own teeth - YouTube