1. Dental Health
Fourth Grade

2. Why do we need teeth? Eat Talk Smile
Try saying the word “teeth” without touching your front teeth with your tongue
Eat
Talk
Smile
Try saying the word “teeth” without touching your front teeth with your tongue

3. 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.

4. Did you know that a cavity (hole in your tooth) is actually a “diseased” tooth?
It sure is!
It is caused by “germs” (bacteria) in your mouth.

5. Germs (bacteria), use the food left on our teeth (sugar), to produce a substance called “acid.”
Reading: :Harcourt Health and Fitness pg
WKS completion (cavities)

6. Read: Your teeth and Their Care (pg.36-37)
Each time you munch
on a snack, drink a
soda, or eat a candy
bar, an “acid attack”
occurs…
Read: Your teeth and Their Care (pg.36-37)

7. Each “acid attack” lasts about 20 minutes.
After repeated “acid attacks,” our teeth become weak, and a hole or “cavity” is formed.
Video: Cavities

8. These “germs” (bacteria) create another problem…
Not only that, but…
These “germs” (bacteria)
create another problem…
It’s called “gum disease.”
What, another Disease?

9. These “germs” (bacteria) in this plaque make your gums sore and they bleed.
It’s called an “infection” or gingivitis.
Hardened plaque is called…TARTAR!
It can make the gums weak. What happens if the gums are weak?
Packet pg. 3-4
Video-Gingivitis

10. Complete Packet Pages
What is a Cavity
Brushing Your Teeth

11. Especially harmful snacks are…
sugary foods and drinks
foods that are starchy
sticky

12. So what can you do to prevent cavities and gum disease?
Yeah, you!

13. Don’t forget to brush your tongue!#1
Brush for two minutes twice each day with a soft bristled toothbrush.
- After breakfast
Before bed
Don’t forget to brush your tongue!
If you can’t brush after a meal, drink water, it will help clean your teeth!
(Be sure to use a toothpaste with fluoride in it!)

14. # 2 Floss your teeth once each day to remove plaque from in between

15. #3
Choose healthy snacks, and have fewer snacks or drinks that are sugary
or sticky.

16. # 4 See a dentist twice a year for a dental exam
and professional cleaning.
(X-rays will also be taken to look
for cavities and other problems.)

17. Complete Packet Pages Clean Teeth are Healthy Teeth (maze)
Ready, Set, Brush (secret code)

18. Proper Brushing Tilt the brush at a 45° angle against the gumline.
Brushing only 2-3 teeth at a time, gently brush the outside, inside and chewing surfaces of all your teeth.
Use short back-and-forth or circular strokes.
Don’t forget to brush your tongue to remove bacteria and freshen your breath!

19. Proper Flossing
Using your index fingers, wrap about 18” of floss around them (but not too tightly).
Leave about an inch or two of floss between your hands.
Now, gently follow the curves of your teeth, sliding the floss up and down the tooth’s surface a few times. Be sure to go below the gumline.

20. Why do we have baby teeth?
Video:
Why do we have baby teeth?

21. How many baby teeth? Primary teeth (baby teeth) = 2o

22. How many teeth does an adult have? Primary teeth (baby teeth) = 2o
Permanent teeth = 32
Primary teeth (baby teeth) = 2o

23. Types of Teeth
Activity: Types of teeth flip chart

24. TYPES OF TEETH Incisors- cut food Canine- tear food
Premolars- crush food
Molars- grind food

25. Matching Molar Canine Incisors Premolars Tear Grind Cut Crush
Draw on smartboard

26. Project
Flip Chart Poster
Types of teeth (see example)

27. Parts of the Tooth Crown: Top part of the tooth (the part you can see)
Root: The bottom part of the tooth that is embedded into the gums
Crown
Gum
Root

28. 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

29. Activity….
- Parts of the tooth diagram
- Dental Crossword Puzzle