Bitcoin is not as scarce as teeth, right? 
Discussion
Funny 🤣
8.062 billion people multiplied by 52 teeth per person (20 children teeth plus 32 adult teeth) equals 419,224,000,000 teeth (419 billion).
Since teeth can "live on" after a person dies, we could go all-time human teeth, so estimated 117 B people have lived, times 52 teeth equals 6.084e+12 (or 6,084,000,000,000 which is 6.084 trillion).
So, there are way more teeth than bitcoin.
If you want to go all in and call a satoshi "a bitcoin", then the teethers win and teeth are more scarce. There are 2.1 quadrillion sats. So, there are more sats/bitcoins than teeth.
I will say this, teeth are non-fungible...just ask my dentist who has been making good money working on me and my wife.
Your math checks out and it certainly doesn't seem like teeth are so scarce although I would like to keep my teeth if possible 😂
And oh, I know the whole teeth analogy is about scarcity, but it totally ignores that I can't send one of my teeth to a random person across the globe with a couple of mouse clicks. But oh well!
😂