Fig. 1
From: Extrinsic tooth staining potential of high dose and sustained release iron syrups on primary teeth
The effect of time of immersion on the ∆E of the different groups of solutions. Difference in alphabet indicates significant difference (p < 0.05) between groups at a given time interval while difference in symbol indicates difference between time interval for each group (p < 0.05). Significance calculated using the Two Way Repeated Measures ANOVA and Scheffe’s Post-hoc test