How Your Teeth Work

How Your Teeth Work

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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]

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