Purina Dentalife daily oral care dog treats are designed with an innovative porous, yet chewy, texture that contains thousands of air pockets. The unique shape features 8 distinct ridges that clean your dog.s teeth down to the gumline. DentaLife gets dogs chewing to clean even the hard-to-reach teeth in the back of the mouth. It.s how DentaLife is able to deliver a breakthrough clean that.s scientifically tested to reduce tartar build-up. For clean teeth throughout a long, healthy life together, choose DentaLife. For Life.