- [Announcer] An now AsapSCIENCE presents, "The Teeth Song."

♪ Teeth, they're neat ♪

♪ Calcified, chews to eat ♪

♪ Crown and root ♪

♪ In sections they are grouped ♪

♪ Incisors chop and they cut for you ♪

♪ Canines stab and rip too ♪

♪ Bicuspids crush the food ♪

♪ Molars grind ♪

♪ Upper maxilla ♪

♪ The lower mandible ♪

♪ A full set counts to 32 ♪

♪ Enamel the hardest substance ♪

♪ In your body making up the crown ♪

♪ Dentin underneath supporting ♪

♪ structure further down ♪

♪ Cementum now ♪

♪ Connecting ligaments ♪

♪ And covering the root for more stability ♪

♪ The pulp is here ♪

♪ Blood vessels cheer ♪

♪ Periodontium tissue ♪

♪ Gingiva are down, act like glue ♪

♪ All combined for you to masticate ♪

♪ As omnivores, our diet is mixed ♪

♪ Eat organisms, get our fix ♪

♪ It's what makes us heterotrophs ♪

♪ So our teeth are there, the key purpose ♪

♪ Teeth, they're neat ♪

♪ Calcified, chews to eat ♪

♪ Crown and root ♪

♪ In sections they are grouped ♪

♪ Incisors chop and they cut for you. ♪

♪ Canines stab and rip too ♪

♪ Bicuspids crush the food ♪

♪ Molars grind ♪

♪ Upper maxilla ♪

♪ The lower mandible ♪

♪ A full set counts to 32 ♪

♪ Brushing teeth prevents cavities ♪

♪ Breaking plaque formation ♪

♪ Fluoride helps to build enamel ♪

♪ Through a process of remineralization ♪

♪ Mammals are diphyodont ♪

♪ Two sets of teeth are designed ♪

♪ From primary or baby ♪

♪ To permanent for your life ♪

♪ So brush your teeth ♪

♪ And floss like you-- ♪

♪ In between ♪

♪ And they'll stay healthy ♪

♪ Now if you just keep ♪

♪ A regular routine ♪

♪ Teeth are great ♪

♪ To empty up your plate ♪

♪ But unchecked ♪

♪ Things can become a mess ♪

♪ If you do not clean your teeth ♪

♪ Bacteria will increase ♪

♪ Creating plaque and acid ♪

♪ Tooth decay can be rapid ♪

♪ Demineralization ♪

♪ And some painful sensations ♪

♪ Exposing nerves and dentin ♪

♪ While toxins start infecting ♪

♪ Inflaming up gum disease ♪

♪ Increased sensitivity ♪

♪ Without good oral hygiene ♪

♪ Bacteria reigns supreme ♪

♪ This is why we brush our teeth twice a day ♪

♪ As you keep gingivitis and diseases all at bay ♪

♪ For our teeth, they're neat ♪

♪ Calcified, chews to eat ♪

♪ Crown and root ♪

♪ Let's name those groups ♪

♪ First, we have central and lateral incisors ♪

♪ The canines are the longest to consider ♪

♪ Transitional first and second premolars ♪

♪ Also called bicuspids by the scholars ♪

♪ The first and second molars at the back grind ♪

♪ And if your clever you will find a third kind ♪

♪ Wisdom teeth ♪

- Thank you all for listening and watching.

We wanna send a huge thank you to Sensodyne

for sponsoring this video and allowing us

to continue making fun, educational science videos.

They recently released a new product called,

Sensodyne Sensitivity and Gum,

which a a dual-action toothpaste that relieves sensitivity

but also improves gum health.

- I, along with 40% of people, experience sensitive teeth.

Most of the time when I'm eating

something very cold or very hot.

As shown in this song,

when tooth enamel wears away over time,

especially over long periods of time,

it can expose a soft inner part of your tooth called dentin.

This dentin has thousands of microscopic channels

that are running towards the nerves and the tooth's center.

Certain triggers can actually travel through these channels

and stimulate the nerve causing that short, sharp pain

that we know as tooth sensitivity.

- Sensodyne Sensitivity and Gum

not only builds a protective barrier

over the sensitive areas,

but it also targets and removes plaque,

which helps swollen or bleeding gums.

Often times gum problems are associated with sensitivity.

So for people who experience both, it's a great product.

- Sponsors like this allow us to keep making content

and sharing science and education

with people around the world.

So we are very thankful to Sensodyne.

Go check them out.

I mean, I personally use Sensodyne every single day.

We'll leave links in the description below.

- Thanks again for watching and singing along.

Send us videos of you singing them.

- Yeah, send us videos of you singing it,

and learning about your teeth.

- And we'll see you next time for another science video.

- [Both Men] Teeth