Adult dogs have 42 teeth. Puppies have 28. VCA, PetMD, and AKC on the count, teething timing, and leftover baby teeth.
Adult dogs have 42 permanent teeth. Puppies have 28 baby teeth. VCA and PetMD publish those two numbers. Humans have 32. The extra dog teeth are not a trivia prize. They are why a leftover puppy tooth matters.
Count the adult set after teething. Do not invent a breed-by-breed chart. A toy dog still aims at 42.
VCA publishes 28 deciduous teeth and 42 permanent teeth. PetMD splits the adult set as 20 on top and 22 on the bottom. AKC uses the same 28-then-42 pair. That is the labeled count. PetMD also states that all adult dogs, regardless of size, have 42 permanent teeth. A Chihuahua and a Great Dane are both aiming at the same number. A short count on exam is a reason to look, not a breed trait you should expect.
PetMD says puppies are born without teeth. Puppy teeth start at about 3 to 4 weeks. By 3 to 5 months they usually have all 28. Adult eruption sits between 3 and 7 months.
| Source | What they publish |
|---|---|
| VCA | 28 puppy teeth, 42 adult teeth |
| PetMD | 42 adult teeth: 20 upper, 22 lower |
| AKC | 28 deciduous, then 42 permanent |
AKC’s dental page, quoting veterinarians, puts 12 incisors in front, 4 canines, 16 premolars, and molars at the back. Those add to the adult 42. Each job is different. A missing type on exam is a veterinary finding. We will not turn that into a chew-toy shopping list.
VCA says teething starts about 3.5 to 4 months, when deciduous incisors start to be replaced. By 6 to 7 months, most puppies have all of their adult teeth. That window is why a 5-month puppy can look gappy one week and crowded the next. PetMD notes toy and small breeds can take longer. Late is a reason to look, not a reason to wait a year.
If you want a breed page after the count, the Chihuahua lifespan guide is a small-dog year range, not a different tooth number.
VCA’s retained-deciduous-teeth page treats leftover puppy teeth as a veterinary problem, not a wait-and-see quirk. A stuck baby tooth can crowd the adult tooth and trap food. AKC says puppy teeth that do not fall out need a veterinarian to extract them. Two teeth in one slot twist the adult tooth. Small breeds show this more often.
Do not wiggle it out with a towel. Home pulling can break a root and infect the socket. The veterinarian who sees that mouth decides timing, often with a planned anesthetic procedure. If a tooth is leftover, crooked, or the puppy is not eating, that is an exam, not a pliers night.
We will not invent a brushing brand, a dental-chew ranking, or a home-extraction method. Count first. Then ask the veterinarian. “Small dogs just have fewer teeth” is wrong. PetMD’s line is 42 regardless of size. “The baby tooth will fall out if I wait” is the wrong default when two teeth share one slot.
Read how we handle owner claims on the about page. This page is editorial. It is not a dental chart for a specific dog.
PetMD and VCA both publish 42 permanent teeth in adult dogs. PetMD splits that as 20 in the upper jaw and 22 in the lower jaw. Humans have 32. Size does not change the adult count. A Chihuahua and a Great Dane are both aiming at 42.
VCA says puppies have 28 deciduous teeth, also called baby or milk teeth. PetMD says those puppy teeth usually start at 3 to 4 weeks and are typically all in by 3 to 5 months. Puppies are born without teeth.
VCA says teething starts about 3.5 to 4 months, when deciduous incisors start to be replaced. By 6 to 7 months, most puppies have all of their adult teeth. PetMD puts permanent eruption between 3 and 7 months. Toy breeds can run later.
VCA’s retained-deciduous-teeth page treats leftover puppy teeth as a veterinary problem, not a wait-and-see quirk. A stuck baby tooth can crowd the adult tooth and trap food. AKC says puppy teeth that do not fall out need a veterinarian to extract them.
No. PetMD states that all adult dogs, regardless of size, have 42 permanent teeth. A missing count on exam is a reason to look, not a breed trait you should expect.
This page is the dog count. Cats have a different number. Do not reuse 42 for a cat, and do not reuse a cat number for a dog. If the mouth question is about vision or night sight instead, start with the dog color-vision guide.
No. Home pulling can break a root and infect the socket. If a tooth is leftover, crooked, or the puppy is not eating, the veterinarian who sees that mouth decides. This page is editorial. It is not a dental plan.
Reader notes are not veterinary advice. If an animal is unwell, call the veterinarian who sees them.
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