|
Changes in total color (ΔE) of extrinsic dental stain |
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| ΔE |
A Nicotine chewing gum |
B Nicotine chewing gum |
C Whitening chewing gum |
Saliva |
|
|
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| 60 min |
10.80 ± 1.96** |
10.08 ± 1.69** |
5.00 ± 2.27* |
1.03 ± 0.43 |
| 120 min |
14.91 ± 2.12** |
13.15 ± 1.57** |
6.55 ± 2.24* |
0.65 ± 0.29 |
|
Total color change (ΔE) in extrinsic stain scores by chewing gums A, B and C and saliva after 60 min or 120 min of in vitro mastication (mean ± standard deviation of 16 samples (n = 16)). Values with the same number of asterisks are not statistically different. Gums A and B versus C or saliva, as well as C versus saliva, are significantly different (at p < 0.01) at both 60 and 120 min. | ||||
Moore et al. BMC Oral Health 2008 8:23 doi:10.1186/1472-6831-8-23 |
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