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Table 2 L*, a*, b* values of the different treatment factors 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)
  T0 T1 T2 T0 T1 T2 T0 T1 T2 T0 T1 T2
L* 45.9 (8.7) 30 (3.3) 24.3 (2.9) 43 (3.8) 54.7 (6) 41.6 (4.3) 41 (6.1) 69 (7.4) 48.3 (5.3) 40 (8.4) 62.3 (7.4) 35.3 (5.8)
a* 3.6 (1.5) 2.6 (1.1) 1 (0.4) 3.2 (1.3) − 0.7 (1.2) − 0.6 (0.4) 3.6 (1.5) − 0.7 (0.4) 1.6 (0.6) 2.7 (1.9) 1.8 (0.8) 1.3 (1)
b* 10.9 (4.6) 5.5 (2.2) 2.2 (0.9) 9 (2.9) 14.6 (3.5) 6.5 (2.2) 7.5 (1.6) 4.8 (2.6) 12.4 (2.9) 7.3 (1.1) 9.7 (1.7) 4.8 (2.4)
  1. Mean values and (standard deviations) of L*, a*, and b* in different readings (T0, T1, T2)
  2. L*: direction of color change of the white/black scale
  3. a*: direction of color change of the red/green scale
  4. b*: direction of color change of the blue/yellow scale
  5. T0: reading at baseline
  6. T1: reading directly after application of tested materials
  7. T2: reading after aging