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Table 3 Little’s irregularity index before and after treatments

From: Accuracy of interproximal enamel reduction during clear aligner treatment

  Little’s irregularity index T0 Little’s irregularity index T1 P value
Mean SD Mean SD
Upper arch 7.26 3.30 2.81 1.72 < 0.001
Lower arch 8.13 4.10 2.66 1.57 < 0.001
  1. P value < 0.05 was considered as significant
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