dental health fourth grade. why do we need teeth? eat talk smile try saying the word “teeth”...
TRANSCRIPT
Dental HealthDental HealthFourth Grade
WHY DO WE NEED TEETH?
• Eat
• Talk
• Smile
Try saying the word “teeth”
without touching your front
teeth with your tongue
Why do we brush our teeth?
• After eating our teeth build up plaque.
• Plaque causes cavities and tooth decay which are very painful.
• Brushing keeps our teeth nice and white and our breath fresh.
Did you know that a cavity Did you know that a cavity (hole in your tooth) is actually (hole in your tooth) is actually a “diseased” tooth?a “diseased” tooth?
It sure is!It sure is!
It is caused by “germs” It is caused by “germs” (bacteria) in your mouth.(bacteria) in your mouth.
Germs (bacteria), Germs (bacteria), use the food left use the food left
on our teeth on our teeth (sugar), to (sugar), to produce a produce a
substance called substance called “acid.”“acid.”
Each time you munchEach time you munch
on a snack, drink a on a snack, drink a
soda, or eat a candysoda, or eat a candy
bar, an “acid attack”bar, an “acid attack”
occurs…occurs…
Read: Your teeth and Their Care
(pg.36-37)
Each “acid attack” lasts about 20 minutes.Each “acid attack” lasts about 20 minutes.
After After repeatedrepeated “acid attacks,” our teeth “acid attacks,” our teeth become weak, and a hole or “cavity” is become weak, and a hole or “cavity” is formed.formed.
Video: Cavities
Not only that, but…Not only that, but…
These “germs” (bacteria)These “germs” (bacteria)
create another problem…create another problem…
It’s called “gum disease.”It’s called “gum disease.”
What, another
Disease?
These “germs” (bacteria) These “germs” (bacteria) in this plaque make your in this plaque make your
gums sore and they bleed.gums sore and they bleed.
It’s called an “infection” It’s called an “infection” or gingivitis.or gingivitis.
Hardened plaque is
called…TARTAR!
It can make the gums weak. What
happens if the gums are weak?
Video-Gingivitis
Complete Packet Pages
• What is a Cavity • Brushing Your Teeth
Especially Especially harmfulharmful snacks are… snacks are…• sugary foods and drinkssugary foods and drinks• foods that are starchy foods that are starchy • stickysticky
So what can you do to prevent So what can you do to prevent cavities and gum disease?cavities and gum disease?
Yeah, you!
(Be sure to use a toothpaste with fluoride in it!)(Be sure to use a toothpaste with fluoride in it!)
• Don’t forget to
brush your tongue!
• If you can’t brush
after a meal, drink
water, it will help
clean your teeth!
##11Brush for two minutes twice each Brush for two minutes twice each day with a soft bristled toothbrush.day with a soft bristled toothbrush.
- After breakfast- After breakfast- Before bedBefore bed
# 2# 2Floss your teeth onceFloss your teeth once
each day to removeeach day to remove
plaque from in betweenplaque from in between
your teeth.your teeth.
#3#3Choose healthy snacks, and have Choose healthy snacks, and have fewerfewer snacks or drinks that are sugary snacks or drinks that are sugaryor sticky. or sticky.
# 4# 4See a dentist twice aSee a dentist twice a
year for a dental examyear for a dental exam
and professional cleaning.and professional cleaning.
(X-rays will also be taken to look(X-rays will also be taken to lookfor cavities and other problems.)for cavities and other problems.)
Complete Packet Pages
• Clean Teeth are Healthy Teeth (maze)
• Ready, Set, Brush (secret code)
Proper BrushingProper BrushingTilt the brush at a 45° angle against Tilt the brush at a 45° angle against the gumline. the gumline.
Brushing only 2-3 teeth at a time, Brushing only 2-3 teeth at a time, gently brush the gently brush the outsideoutside, , insideinside and and chewingchewing surfaces surfaces of all your teeth.of all your teeth.
Use short back-and-forth or circular Use short back-and-forth or circular strokes.strokes.
Don’t forget to brush your tongue Don’t forget to brush your tongue to remove bacteria and freshen your to remove bacteria and freshen your breath!breath!
Proper FlossingProper Flossing
Now, gently follow the curves of Now, gently follow the curves of your teeth, sliding the floss up and your teeth, sliding the floss up and down the tooth’s surface a few times. down the tooth’s surface a few times. Be sure to go Be sure to go belowbelow the gumline. the gumline.
Using your index fingers, wrap about Using your index fingers, wrap about 18” of floss around them18” of floss around them(but not too tightly). (but not too tightly).
Leave about an inch or two of floss Leave about an inch or two of floss between your hands.between your hands.
• How many baby teeth?−Primary teeth (baby teeth) =
2o
•How many teeth does an adult have?
Permanent teeth = 32
Primary teeth (baby teeth) = 2o
Types of Teeth
TYPES OF TEETH
•Incisors- cut food•Canine- tear food•Premolars- crush food•Molars- grind food
MatchingMolar
Canine
Incisors
Premolars
Tear
Grind
Cut
Crush
Project• Flip Chart Poster
−Types of teeth (see example)
Parts of the Tooth
Crown
Root
Gum
Crown: Top
part of the tooth
(the part you
can see)
Root: The
bottom part of
the tooth that is
embedded into
the gums
Label• Pulp: Part of the tooth containing nerves and blood vessels
• Jawbone: The bone that shapes the lower part of your face
• Gum: Firm pink flesh in your mouth that your teeth are fixed into
• Dentine: Yellowish tissue that makes up the bulk of all teeth
• Enamel: Hard mineralized surface of teeth
Activity….- Parts of the tooth diagram
- Dental Crossword Puzzle