Fig. 5. Means and standard deviations of ΔE values for 5M3 shade substrate groups. Groups of zirconia in 1M1 shade (A), 1M2 shade (B), 2M1 shade (C), 2M2 shade (D), 2M3 shade (E) , 3M2 shade (F), 4M2 shade (G) and 5M2 shade (H).
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