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Table 1 ΔL, Δa, Δb of different treatment groups in respect to time

From: Laboratory evaluation of the potential masking of color changes produced by silver diamine fluoride in primary molars

  SDF (Group A) SDF + KI (Group B) SDF + CMP (Group C) SDF + GI (Group D)
Color difference between baseline reading and directly after application of the tested materials (T 0,1)
ΔL − 16 (7) a 11.7 (6) b 28.1 (9.4) c 22.3 (7.1) c
Δa − 1 (1.1) a − 3.9 (1.6) b − 4.2 (1.4) b − 0.9 (1.4) a
Δb − 5.5 (2.8) a 5.6 (2.9) b − 2.8 (2.2) c 2.4 (1) d
Color difference between directly after the application of the tested materials and after Suntest aging (T 1,2)
ΔL − 5.6 (2.1) a − 13 (6) b − 20.7 (5.7) c − 27 (6.6) d
Δa − 1.6 (1) a − 0.02 (1.2) b 2.3 (0.7) c − 0.5 (0.9) a, b
Δb − 3.3 (2.1) a − 8.1 (3.8) b 7.7 (4.4) c − 4.8 (1.7) a, b
  1. Mean values and (Standard deviations) of ΔL, Δa, Δb of all treatment groups (T0, 1 and T1, 2)
  2. Different superscript letters indicate a significant difference between the groups within one row (p < 0.05)
  3. ΔL: difference in color shift of the white/black scale between two different time points
  4. Δa: difference in color shift of the red/green scale between two different time points
  5. Δb: difference in color shift of the yellow/blue scale between two different time points
  6. (T0, 1): difference between baseline, and directly after application of tested materials
  7. (T1, 2): difference in reading between directly after application of tested materials and after aging