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  • [MUSIC PLAYING]

  • KidsHealth presents "How the Body Works,"

  • with Chloe and the Nurb.

  • [MUSIC PLAYING]

  • (SINGING) So you gotta, gotta, gotta, gotta, gotta

  • have a kidney or two.

  • [CHEERS AND APPLAUSE]

  • That was the Foggy Liver Boys with "Gotta Have

  • a Kidney or Two."

  • Next up is Chloe and the Nurb with a song that's

  • sure to put a big toothy grin on your face.

  • [MUSIC PLAYING]

  • (SINGING) Teeth, teeth, in my mouth, how

  • I love them north and south.

  • You need them when you speak and chew.

  • They help you when you're singing, too.

  • Like we often do.

  • Woo hoo!

  • Babies get their first teeth at 6 months old.

  • 20 baby teeth is all their baby mouths can hold.

  • They usually have all 20 by the time they're 3.

  • They're your primary teeth.

  • At around 6 years those little teeth get loose.

  • Bigger, stronger teeth start pushing them out.

  • By 12 or 13, you'll have all 28 of your adult teeth.

  • So there are 28 permanent teeth in all-- eight

  • more than you had when you were small.

  • But you're not done yet.

  • You still have four more to go-- your wisdom teeth.

  • Wisdom teeth, wisdom teeth.

  • By 21, you'll probably have those wisdom teeth for 16

  • over head and 16 underneath.

  • It's all the teeth that anyone could ever need

  • and the only set you'll get.

  • Teeth, teeth, you've got all kinds.

  • You keep yours, and I'll keep mine.

  • Brush them at least twice a day, and floss them, too,

  • if you want them to stay.

  • Till you're old and gray.

  • Yee hee!

  • You've got different kinds of teeth, whatever your mood.

  • The front four incisors help you bite your food.

  • There's four on top and four on the bottom, too-- doo,

  • doobity-doo.

  • Next are your canines, the spiky teeth,

  • helping tear tough food whenever you eat.

  • Every once has four-- two on top and two beneath,

  • just like a doggy's teeth.

  • Premolars and molars are the ones that chew.

  • They crush, grind, and smash up all of that food.

  • Add some spit, and you're ready to swallow it down.

  • Let's chew, chew, chew.

  • Chew, chew, chew.

  • Those wisdom teeth not only come in slow.

  • Once they're there, they might just cause you woe.

  • You don't really need them, so your dentist can take them out.

  • Bye, bye.

  • Teeth, teeth, they live in your jaw.

  • They help you munch, bite, nibble, and gnaw.

  • Some folks wear braces to get their teeth aligned

  • so their teeth work better and their smile looks fine.

  • The white part we see on top is the crown, and below

  • that the roots stretch really far down.

  • The enamel outside is what makes them hard and bright

  • if you brush them right.

  • The pink stuff the tooth sits in is your gum.

  • The roots of the teeth are covered by cementum.

  • It helps anchor those teeth to your jaw

  • so they don't fall out.

  • Inside that is the dentin around the pulp.

  • The pulp's nerves send pain messages

  • to your brain that says this soup's too hot

  • or this ice is too cold.

  • Brr.

  • Sometimes a cavity's what's hurtin' you, though.

  • Acid from plaque burned a hole through the enamel, which

  • is why we brush at least twice a day and floss at least once.

  • Nurb, do I have to floss every tooth?

  • Just the ones you wanna keep.

  • Teeth, teeth, keep them in your mouth.

  • Brush them twice a day or more north and south.

  • Floss each end every day, too, to remove most food

  • and nasty plaque, too.

  • Teeth!

  • Teeth!

  • We love those teeth!

  • You said a mouthful.

  • [CHEERING AND APPLAUSE]

  • [WINGS FLAPPING]

  • [MUSIC PLAYING]

[MUSIC PLAYING]

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B1 US teeth chew wisdom teeth gotta gotta floss wisdom

How Your Teeth Work

  • 50 1
    Amy.Lin posted on 2019/03/19
Video vocabulary