- Teething:
The shedding of the baby teeth and replacement with adult teeth end at about 8 months of age.
Most of the time, the puppy swallows the tooth, that is the reason, we never get to see them.
- Retaining Puppy Teeth:
There are time when the baby teeth do not fall out, and the dog develops a double row of teeth.
Or you see a one adult tooth next to it's companion baby tooth. This can cause the adult tooth, or teeth being pushed out of alignment, which can cause malocclusion and gum injury.
Keep checking your your puppy's teeth, especially around the age of 6 months. If you see retained teeth, go to your vet; he will have the baby teeth removed.