Puppy = no molars
So far we've considered the adult dentition pattern, but now let's take a look at deciduous dentition. Dogs and cats have two sets of teeth during their lifetimes. The differences between puppy teeth and an adult dog's dentition, or between kitten teeth and an adult cat's teeth, is that the puppy and kitten do not have molars. The need to crush and grind food is not present in the young animal's earliest weeks.