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Table 3 Comparison of the perceived level of pain in the two groups and the time interval between the treatment onset and initiation of pain

From: Tooth alignment and pain experience with A-NiTi versus Cu-NiTi: a randomized clinical trial

  Number of cases Study group P value* Test statistic
A-NiTi mean (SD) Cu-NiTi mean (SD)
Pain score 44 5.84 (2.04) 6.16 (2.23) 0.487 − 0.697
Time interval between treatment onset and pain initiation (hours) 43 5.45 (6.31) 6.14 (5.93) 0.603 − 0.521
  1. *One sample t test
  2. SD standard deviation