Whitening Efficacy of 3% Carbamide Peroxide Gel Activated by Lactoperoxidase

Table 3

L, a, b, and ΔE values for the treatment group (n = 19) and the control group (n = 19).

	Treatment	Control
Data in mean ± standard deviation
ΔL	0.16 ± 3.64	−1.62 ± 3.34	0.20
Δa	−0.90 ± 0.40	−0.12 ± 0.31	0.81
Δb	0.02 ± 2.22	−0.43 ± 0.95	0.48
ΔE	5.34 ± 2.31	4.32 ± 1.56	0.16