homemade or commercial toothpastes?
TRANSCRIPT
Experimental School of University of Macedonia
By the following students: Kaouni Anna,Miliadou Athanasia,Gavridis Dimitris, Zachariadis
Simos,Vakouftsis Dimitris,Christoforidou Athina,Psounou Evaggelia,
Taousiani Georgia , Vareljis George and Koronidis Dimitris
Supervisor teacher: Georgolios Nikolaos, Chemist
Translated in English by: Anna Kaouni and Athanasia Miliadou
People tend to have a more healthier life.
So, daily needs adjust to these models.
As the teeth cleaning is a daily need, more scientists research toothpastes which have simple and natural ingredients.
The toothpaste came from Egypt and consisted of powdered pumice and vinegar.
Then toothpaste
was changed by Greeks and
Romans.
In 19th century toothpaste
started to have a standard form. It was
usually consisted of
chalk, pulverized
brick and salt.
In1892, Dr Washington
Sheffield was the first who
put the toothpaste into
a tube.
First, we preferred
recipes which have simple and cheap ingredients.
After experiments
we ended up to two
recipes, based on
baking soda.
Baking soda acts as
whitening, whereas it creates an
alkaline environment,
which is preferable.
Main Ingredients: Also, we added:
7gr baking soda 1ml orange flavour
3gr salt Little clove
4ml glycerin -
1,5ml water -
The final result, in which we ended up, it
was a mixture with sandy
texture.
The add of orange flavour
made our mixture liquid.
In a purpose to improve our
product we added some baking soda.
Main ingredients: Also, we added:
20 gr baking soda 2,5ml food coloring
9 ml glycerine A little citric acid (xino), which
lowers the pH.
1-2 gr Cyamopsis
tetragonolobus Little clover
In order to discern the whitening power:
•We choose to use white eggs' shells because the composition of eggs’ shells looks like this on our teeth.
So we boiled
white eggs
into the water,
in which we
put different
foods, such as
black tea,
onions,
cabbage etc.
• We separated the eggs in two parts with a black marker. First
• In the one side we brush with our homemade toothpaste and in the other side with the commercial one.
Then
• We noticed that the homemade toothpaste has a better whitening power. Finally
The acidity (pH) of the toothpaste
was measured with small electronic
pHmeters or pH-paper
First the homemade toothpaste’s and after the commercial’s
one.
The most successful recipe was the second one,
because we noticed that it’s pH looks like the
commercial toothpaste’s pH.
Content of materials in amounts% w/w:
60,6% baking soda,
6,3% Cyamopsis tetragonolobus,
27,3% glycerin
and 6% food coloring.
We warehoused our toothpastes into airtight jars and we noticed that they can stay invariat for a long time in the frigde.
Finally
In the homemade toothpaste the
whitening power was better,the reason why this happen is the fine granules.
The homemade toothpaste’s
pH is approximately
8.
Slightly basic (alkaline)
environment…
…is needed to neutralize the acidity
produced by the transformation of the sugars to acids into
the mouth.
Cheap and healthy ingredients.
Without chemicals which focus on the appearance of the product.
It doesn’t look attractive.
It doesn’t have creamy texture.
Deficiency of fluoride.
By the following students:
Kaouni Anna,
Miliadou Athanasia,
Gavridis Dimitris,
Zachariadis Simos,
Vakouftsis Dimitris,
Christoforidou Athina,
Psonou Evagelia,
Tausani Geogia ,
Vareljis George
Koronidis Dimitris
Supervisor teacher:
Georgolios Nikolaos, Chemical
Translated by:
Kaouni Anna
Athanasia Miliadou Nice teeth!