Title: How old is this puppy?
Headings: How old is this puppy?
How old is this puppy?
We found a puppy but don't know how old he is. How can I tell?
Eruption of the permanent teeth is as follows:

Content: This is referred to as "erupting." Puppies have a total of 28 deciduous teeth by the time they reach 45 days of age. This is a good time to give puppies plenty of chew toys. As time goes by, these teeth are replaced by permanent teeth. The canine tooth fairy works somewhat faster than her human counterpart – most breeds show permanent teeth at 6 to 7 months of age. Eruption of the permanent teeth is as follows: Incisors
Central: 2-5 months
Intermediate: 2-5 months
Corner: 4-5 months
Canines
5 months
Premolars
First: