Table 2.
Materials | 24 Hours Distilled Water | 21 Days Distilled Water | 21 Days Carbamide Peroxide |
---|---|---|---|
Rok | a0.75 ±(0.07)A | b0.67 ±(0.07)A | b0.64 ±(0.08)A |
Esthet | a0.59±(0.05)B | a0.58±(0.09)B | b0.66±(0.05)A |
Estelite | a0.50±(0.03)B | b0.46±(0.03)C | a0.50±(0.03)B |
Means with the same upper-case letter in each column are not significantly different (p> 0.05).
Means with the same lower-case letter in each row are not significantly different (p> 0.05).