D. Newsletter Graph including final grades of
columns A - H

 

  Scale: 4.0 = Excellent
3.5 = Very Good
3.0 = Good
2.5 = Fair +
2.0 = Fair
1.5 = Fair -
1.0 = Poor

Brand
A.
Cost / ml
B.
Color Change
C.
Decrease in Active Ingredient During Use
D.
Directions Grade
E.
Viscosity Grade
F.
Taste Grade
G.
User Satisfaction Survey
Active Ingredient = Hydrogen Peroxide
1
Crest Whitestrips
4
4
3
4
4
3.25
4
2
Day White 2Z
4
4
2
4
4
2.2
4
3
Day White
4
4
3
4
4
2
3
4
Perfecta 3/15
2
4
2.5
4
4
2
3.25
5
Perfecta 3/15 X Strength
2
4
2.5
4
4
2
3
Active Ingredient = Carbamide Peroxide 10%
6
Colgate Platnum
4
4
3.5
4
4
2.6
3.3
7
Colgate Platnum Over Night
4
4
4
4
4
2.2
2.5
8
Nite White Excel
3
4
3.5
4
4
1.75
4
9
Nite White Excel
2
3
4
4
4
2.75
3
10
Rembrandt X-Comfort (10%)
4
4
2
4
3
3
2
11
VivaStyle
3
4
3
4
4
2.8
4
12
Zaris
3
4
2
4
4
2
2.7
Active Ingredient = Carbamide Peroxide 15% & 16%
13
Contrast PM
4
4
3.5
4
4
2.3
4
14
Denta-Lite
3
4
2.5
3
3
1.6
4
15
FX Tooth Whitening Gel
4
4
2
4
2
1.8
2.5
16
Karisma
3
4
2
3
2
2.75
2.5
17
Nite White Excel 2Z
3
4
2.5
4
4
2.8
2.5
18
Nupro Gold
3
4
3.5
4
4
3.2
4
19
Opalescence PF
4
4
4
4
4
2.4
3
20
Rembrandt (15%)
4
4
1
4
1
3.25
2.5
21
Rembrandt X-Comfort (16%)
4
4
3
4
3
2.6
4
22
White & Brite
3
4
4
4
4
3
4
23
Zaris
3
4
2.5
4
4
2
2.6


Explanation of Criteria for Each Column

Column A: Cost per Milliliter
The scale for ranking cost broke down as follows:
 

4.0 = $25.00 and lower
3.5 = $26.00 = $39.00
3.0 = $40.00 = $49.00
2.5 = $50.00 = $60.00
2.0 = $61.00 and higher

Column B: Color Change
All bleaches lightened teeth about 2 shades. Variations from this mainly depended on the patient. All bleaches received a ranking of 4 meaning all were excellent.
Column C: Decrease in Active Ingredient During Use
It was determined what percentage of bleach remained after 0.5, 1, 2, and 4 hours. A graph of the degredation was made and the area under the curve was measured (% / time). The scale broke down as follows:
 

4.0 = 80 and higher
3.5 = 66 to 79
3.0 = 46 to 65
2.5 = 32 to 45
2.0 = 19 to 31
1.0 = 18 and lower

Column D: Directions
The four components assigned as necessary were: Dr's instructions, patient instructions, tray fabrication instructions, and photos/diagrams of steps involved in dispensing gel into tray and inserting tray into mouth. The following grading scale was used:
 

4 = all four critical components present
3 = Three of four critical components present
2 = Two of four critical components present
1 = One of four critical components present

Column E: Viscosity
Each gel will be given a score based on the following scale:
 

1.0 = (poor) displacement is greater than 10mm
2.0 = (fair) displacement is 7.1mm to 10mm
2.5 = (average) displacement is 5.1mm to 7.0mm
3.0 = (good) displacement is 1.1mm to 5mm
3.5 = (very good) displacement is .1mm to 1mm
4.0 = (excellent) displacement is 0mm

Column F: Taste
Score based on the following scale:
 

1. Poor- Extremely offensive and intolerable taste
and texture
2. Fair- Mildly offensive, but tolerabletaste and texture
3. Good- Not offensive, taste and texture both good
4. Excellent- Refreshing taste, and texture feels good

Column G: User Satisfaction Survey
Subjects gave grades based on the following scale.
 

4 = Extremely Satisfied
3 = Very Satisfied
2 = Satisfied
1 = Not Satisfied

Column H: Total Contact Time
A list of total treatment hours was evaluated and broken down based on the following scale:
 

4.0 = 25 and lower (hours)
3.5 = 26 to 40
3.0 = 41 to 50
2.5 = 51 to 70
2.0 = 71 to 90
1.5 = 91 and higher

Column L: Columns A - H were averaged to give an overall performance score for each bleach.

E. Conclusions

 

All 23 products studied lightened teeth about 2 shades. All use hydrogen peroxide as their active ingredient (carbamide peroxide is a mixture of hydrogen peroxide and urea). The differences among the products are subtle and involve personal preferences. Based on these points, clinicians could consider allowing patients the option to choose among several products offering different tastes, contact times, delivery systems, and costs.


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