Toothpaste test lab

Name: David ndiaye
Partners: Xedia lobo , Hannah rosenfield
Lab Date: 02/10/13

Lab Procedure: 1 ):We started by looking at the appearance of the toothpaste, and their smell with our naked eyes,
2:)We took a sample of each toothpaste and put them on the microscope to see the difference with our naked eyes,
3:) Next we put three water drop in each one of them and looked again in the microscope to see the abrasiveness of each one of them between 1 to 5.
4 :) And next we mixed each toothpaste with water the tets tube, and use a pH paper to find the pH of each of them
5).And finally we took the price of each toothpaste and their tube size (oz)

Purpose: Compare different toothpaste and their effectiveness.

Materials:
Toothpaste samples 5, plus the control
Distilled water
Miscroscope
Cotton swabs beakers pH test paper
Marker
beral type pipet microscope slides , 5

Data:

Toothpaste
Control
#1_aim____
#2___baking soda___
#3___aquafresh___
#4___colgate maxclean____
#5 pepsodent _______
Test 1 Appearance/Scent (Naked Eye) white minty turquoise minty white minty rainbow bubble mint white with blue dots peppermint white mint
Test 1 Appearance (Microscope) small speeks of bubbles big bubbles a lot of them small speeks of bubbles no bubble long thick red line white and blue bubble very smallish bubbles Test 2 Abrasiveness (Rating 0= no abrasion to 5 =high) 3 0
1
2
0
1
Test 3 pH 8.0
7.2
8.0
7.6
6.8
6.4
Test 6 Value Cost of the tube, tube size, cost per oz.
$ 5.40
75 ml $ 1.15
6.0ooz
19 cents $3.49
6.40 Oooz
54 cents $2.59
6.40 cents
40 cents $ 1.99
6 Oooz
33 cents $0.99
6 Oooz
17 cents

Other Information Given on Label

Results:
Questions and Analysis of Data:
Test 1: Appearance
1. I would most likely use aquafresh becaus of its smell and medium abraviness; it is also not very expensive.
2. Turquoise mint, because it’s not very usual.
3. Peppermint and turquoise mint because, they have a different taste than usual toothpaste like white mint
4. Toothpaste with big crystals tends to be less abrasive.
Test 2: Abrasiveness
5. Aquafresh, baking soda and Pepsodent, Aim and Colgate maxclean
6. To see the scratches from 0 to 5
7. Because a good abrasive help remove plaque from the teeth without damaging the enamel
8. Too harsh of an abrasive will grind away the enamel.
9.
Test 3: pH
10. higher pH :Colgate(baking soda) , aquafresh , Aim , Colgate(maxclean) ,pepseodent