Try our canine mall. . . . Like humans, dogs have two sets of teeth in their lives. The 28 baby teeth erupt through the gums between the third and sixth weeks of age. Puppies do not have to grind much food, so they do not have molars.
Puppy teeth begin to shed and be replaced by permanent adult teeth at about four months of age.
Although there is some variation in breeds, most adult dogs have 42 teeth, with the molars coming last, at about six or seven months. Teething can be accompanied by drooling, irritability, and fluctuations in appetite. Boomer has six incisors on the upper jaw and six on the lower. He uses the incisors to nibble shreds of meat from bones and to groom himself and other dogs. Mutual grooming is a greeting and bonding behavior in dogs that maintains pack order.