Dr. Yara Haridi

It's fine.

I'll get it next time.

And the thing is, teeth are really complicated, especially ours.

This is why implants don't work very well.

They still work, guys.

It's better than nothing.

But they don't work very well because they don't have the nerve and the blood supply and the pressure sensitivity anymore.

So sometimes people bite too hard, break their implants, etc.

It's never as good as your original organ, right?

hate me salamanders have teeth salamanders have teeth are they little nubbins tiny tiny tiny little things eating bugs eating ants mostly worms they're kind of like just velcro on the inside of the mouth so everything goes the right way and not out the other way because like salamanders also don't have a secondary palate so the way they're breathing the way they're eating all that is just in one area so you really want your worm to go down yes not back up right yeah what about snails have those like raspers what are they called uh radulas

And how do we know they're not teeth?

They're not made of the same stuff.

They're actually keratin.

It's like a little pad of Velcro kind of thing, little hooks that's keratinized.

Not odontodes.

Not odontodes, which are a vertebrate only thing.

Yeah.

So true teeth and odontodes in large start at vertebrates.

No invertebrates have them.

They have similar things.