Why do small dogs tend to lose so many teeth?

I'm assuming you mean their adult teeth later in life… It is true that a poodle, Cairn Terrier, or Chihuahua will lose more teeth that a St. Bernard, Labrador Retriever, or a Mastiff. The main reason though is simple… They live about 50% long than those breeds and have more time to lose them. read more

Losing Baby Teeth. Dogs develop 28 baby teeth in early puppyhood, usually between 3 and 6 weeks. Puppy teeth are very sharp and you'll probably feel your puppy nip you with these teeth because puppies tend to chew on everything before they get their adult teeth. Adult teeth develop between 5 and 8 months. read more