Puppies are born without any teeth. The deciduous or primary teeth start erupting through the gums at about three weeks of age, and are finished erupting by six weeks of age. The pup will have 28 primary teeth in all.
“Teething” begins in puppies at about 3 Ā½ to 4 months of age, when the primary incisors begin to be replaced by permanent incisors. In puppies, the entire teething process is relatively rapid, and by the time the average puppy reaches 6 to 7 months of age, all 42 adult teeth have erupted.
MyPositiveDogTrainingBlog 
Man, I wish I’d read this 3 years ago, when we got our dog. I’d never had a puppy before, and when I started finding his little baby teeth on the floor, I panicked. š
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By: littlehousebytheferry on October 26, 2013
at 11:20 pm
I’m sure it was pretty scary to think his teeth were just falling out but you can laugh about it now! š
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By: Linda Trunell on October 27, 2013
at 12:14 am
Thanks for the info!
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By: Jo Danehy @ The Sundog Drift on October 29, 2013
at 4:52 pm