The FurToothFairy takes them, and leaves treats under their furbed!!
Lol, but seriously, some of them do get swallowed, but some will fall out and you'll find them on your carpet. I would be more worried about them swallowing some foriegn object found on the floor, than their own teeth. I saved all my babies pupper toofers ♥ cuz I'm silly that way. Also, some don't loose all of their teeth and need them pulled under anesthesia. One of my girls had 16 pulled and another had 11