Is that supposed to happen?

We've had Yoda for two weeks today!

He's learned how to "sit" and "lie down", although he still gets the two confused.
We even bought a couple books so we would know more about what to expect with our dog.
But there's one part we haven't gotten to yet...

A couple nights ago, I woke up in the middle of the night because Yoda was chewing on something. I reached into his mouth and pulled out a small bead-like thing. It was dark, so I just put the item on my nightstand and went back to sleep.

The next morning I found a TOOTH on my nightstand. That's right, Yoda had been chewing on his OWN TOOTH.
There's TWO teeth in this picture because it happened again today!
Wanna see another angle?
I know, SO GROSS!
I had to put Yoda's favorite stuffed animal in the wash today because it had blood spots on it.

Apparently this is normal?
Seriously?
Why didn't anyone warn us?

Ideal Situation:
Me - "Guess what, we adopted a puppy!"
Friend - "That's awesome! By the way, his teeth will fall out."

Is that too much to ask?
Seriously!
I'm going to go throw up now.