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•
Healthy Foods for Your Teeth
• Stay Away Tooth
Decay
• What Causes
Tooth Decay
• The Power
of Fluoride
Healthy
Foods for Your Teeth
By Tracie Sims, W.T. Henning Elementary School, Sulphur, LA
Grade Level: Elementary (no specific grade levels given)
From www.teachers.net
Concepts Taught: Students will be able to tell
the kinds of foods that are good for their teeth.
Materials Required: 2 baskets, Snickers bar,
apples, gum, mints, lollipops, carrots, oranges, peas, Skittles
candy, pears
Activity Time: 30 minutes
Procedure:
1. Review the brushing techniques. Tell students they must be
sure they get to all of their teeth. Moving the brush in little
circles on the outside, inside, and the bottoms of teeth.
2. The students will be put into small groups and given food
items. Each group will sort the items into healthy foods, and
foods that are not healthy for your teeth.
3. After discussing the results of each group, and why they
made the choices they made, the class will then work together
to sort foods into the correct baskets.
Stay Away Tooth
Decay
By Amy Koch, Kindergarten Teacher
Grade Level: K-2
From www.atozteacherstuff.com
Concepts Taught: The students will learn about
good dental hygiene. The students will talk about what is good
for your teeth and what is bad.
Materials Required: Berenstain Bears Visit
the Dentist (or other dentist book), one hard boiled egg for
each child or one egg for each three students, toothbrushes
for each child or several to share, toothpaste, a cup for each
child or a cup for each egg, a dark soda
Procedure:
1. Talk about what things are good for your teeth and what things
are bad. Ask the children what they think will happen to their
teeth if they do not brush them. How can they keep their teeth
in good shape?
2. Read the book Berenstain Bears Visit the Dentist (or any
other dentist book). Talk about brother and sister bears visit.
What happened? Was their report good or bad? Why?
3. Explain to the children that the egg represents their teeth
right now (nice and white). Tell them the soda resembles the
bad things for their teeth.
4. Have each child drop their "tooth" into the dark
soda. Ask them what they think will happen to the egg overnight.
The next morning look at the eggs. What happened? Why?
5. Have each student or their group take a toothbrush. Put toothpaste
on it. Tell them to gently brush their tooth (the egg). What
happens when they use good brushing skills? (The egg becomes
white again).
What Causes Tooth
Decay
By Melodie Hill, Lewis Arriola Elementary School, Cortez, CO
Grade Level: 2-6
From www.col-ed.org
Concepts Taught: Students will be able to:
1. Show the parts of a normal tooth. These include enamel, pulp,
dentin, crown, neck, and root.
2. Identify the causes of mouth acids (saliva and food particles).
3. Show the effects of weak acids on calcium as an example of
weak mouth acids on teeth enamel which contains calcium as a
main ingredient.
4. Chart micro-organism growth and decline as the food supply
runs out.
5. Describe ways that micro-organism growth (cold, sunshine,
sterilization, etc.)
6. Describe ways that micro-organisms are used successfully.
Materials Required: Paper plates (one per child),
small container or jar, tape, egg shells, crackers, bread, vinegar,
graph paper, hand mirrors, worksheet pages, teeth (if available)
Procedure:
1. Have students eat a cracker and spit it out on a paper plate.
What happened? Why? Place cracker on paper plate. Add water.
What happened? Why? Place another cracker on paper plate. Add
vinegar. It should dissolve even more than water showing that
saliva contains a weak acid similar to vinegar.
2. Using tape, label a small container (baby food jar) with
student’s name. Place egg shell in jar. Explain that teeth
enamel is made of the same stuff (calcium) as egg shell. Pour
small amount in vinegar in, enough to cover half of shell.
3. Cap jars and label the date on the lid. Let sit several days.
Observe changes every day. Have students draw egg shell enlarged
on graph paper.
4. Have students bring in lost teeth of their own. These can
even be animal teeth. Show crown, neck and root. Split a tooth
if possible, to show enamel, pulp and dentin. Use worksheet
to reinforce.
5. After several days blacken in squares on graph paper to show
holes in egg shell. Explain that the holes are places where
the acids dissolved the calcium. Explain that enamel on outside
of teeth is also made of calcium.
6. Using a small hand mirror, have students look at their own
teeth. Note areas that appear black or dark. Note fillings or
caps on worksheet page. Explain that back teeth (molars) are
more at risk because of gum chewing, etc.
7. Have students compare teeth charts.
The Power of
Fluoride
Grade Level: 4-6
From www.healthyteeth.org
Concept Taught: Students will learn about the
protection power of fluoride on teeth.
Materials Required: 1 bottle of fluoride rinse
solution (available from your dentist, local dental supply company,
and pharmacies), 2 eggs, 1 bottle of white vinegar, 3 containers
Procedure:
1. Pour four inches of fluoride rinse solution into one of the
containers and then place an egg in the solution. Let it sit
for five minutes. Remove the egg.
2. Pour four inches of vinegar into each of the remaining two
containers. Put the egg that has been treated with the fluoride
into one container of vinegar and the untreated egg in the other
container of vinegar.
3. One egg will start to bubble as the vinegar (an acid) starts
to attack the minerals in the egg shell. Which egg do you think
will start to bubble?
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