There is one power that all superheroes seem to possess. Even the ones that profess to have no powers at all, your super-athletes like Green Arrow, Black Widow, and Batman. And that is the power of nigh-indestructible teeth.

There's a reason that football players and pro fighters wear mouthpieces. You take a hard shot to the head and some teeth are gonna get rattled. Some of them will come out. But does this ever happen to superheroes? Pretty much never. I say "pretty much" because I can only remember two instances where it did:

-- In the Daredevil movie, he spits out a molar at one point after a fight.
-- In Frank Miller's "The Dark Knight Strikes Again," a captured Batman is being pounded by Lex Luthor and loses teeth in the process.

It should be noted that neither of the examples above is what you would call a shining example of the superhero genre. Of course, I haven't absorbed every superhero comic, show, or movie out there, so it's very likely I would've missed some other instance. The vast majority of the time, however, superheroes have special dental protection from on high.

Oh, and it doesn't count if someone with a healing power loses a tooth. Wolverine (whose teeth are not laced with adamantium, which was assuredly an oversight by the Weapon X program) has probably spat out a few bicuspids along the way, but he grows them back, so it's no biggie. That's the problem with having a healing factor. It suddenly becomes your karma to attract injuries. I remember one particular X-Men crossover where we have about a dozen X-Men, most of them with no particular protective powers, and a building collapses on them to knock them out for a while. Everyone scrapes themselves out of the wreckage at about the same time. Why didn't Wolverine wake up sooner? Because he alone happened to take a falling pylon through the guts and had to heal. Everyone else just got boo-boos on the noggin. That's a healing factor for you.

Come to think of it, immunity to shrapnel is another hidden superpower.