Radiant Smiles

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Purpose

The purpose of this experiment is to find out how different beverages may affect dental health.

Hypothesis

My hypothesis is that coke is going to be worth for your teeth because of the sugar content and the dark color.

Reference

Updated September 13, 2019

By Chris Deziel

Healthy teeth are vital when you chew food, which is important for digestion. They make it easier for our mouths to form words and – let's not forget – they make radiant smiles. Because teeth are so important, tooth decay can be a serious problem. Eggshells are good substitute for me because they are make from chemicals similar to those that form tooth enamel.

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Our investigation is going to find out if different beverages (vinegar, coke and orange juice) affect our teeth health differently.

Materials:

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3 cups of Vinegar

3 cups water

3 cups of Coke

3 cups of Orange Juice

plastic wrap paper

9 clear plastic large cups

camera

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Variables:

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Independent Variables

Types of liquid

Vinegar, Orange Juice, Coke

water

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Procedures:

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• Pour a cup of liquid into each cup.
• Carefully, place an egg into each liquid,
• Cover each cup with plastic wrap paper
• Soak eggshells in a variety of solutions that may or may not cause decay.
• Observe for a week, photographing digitally before and after 5 days.
• Record your observation after 5 days.
• Repeat the process 1 to 6; 2 more times or do it 3 times simultaneously.

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vinegar

Coke

Orange

Juice

Water, no change

BEFORE

AFTER

Coke

vinegar

Orange

Juice

vinegar

Coke

Orange

Juice

Control

Results/ Data

AFTER

Coke- After being left in the cola mix the egg has become completely transparent and very squishy. The implication is that the chemicals in the cola have fundamentally transformed the properties of the egg and the enamel. The shell has acquire an extremely dark color.

Vinegar- When you soak an egg in vinegar the eggshell absorb the acid and break down, or dissolve. The calcium carbonate will become carbon dioxide gas, which will go into the air. What is left is the soft tissue that lined the inside of the eggshell. It bounce!

Orange Juice-Orange juice contain acids which react with the calcium carbonate in the eggs to produce carbon dioxide gas. This reaction has the effect of destroying the egg shells and leaving behind the inside of the egg.

Conclusions:

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My hypothesis was incorrect, although the coke stain the teeth or egg shell the most in this case, the vinegar damage the enamel (or shell)of the whole egg completely, leaving a gummy material with no hard protection. I concluded that the vinegar is more harmful for the teeth (Acids liquids such salad dressings).

Continue Radiant Smiles...Real

Real life Connection

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Dentists warn about sweet foods because sugar feeds bacteria living in a layer of plaque on the surface of tooth enamel. These bacteria create acids through their metabolism, and it's the acids that cause decay.

Cola contains phosphoric acid, and vinegar contains acetic acid. Both acids are concentrated enough to soften and partially dissolve eggshells.

As a follow-up, you might let the eggshells in the different types of dressings with vinegar.

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