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Table 3 A comparison of monthly retraction rates of the two techniques

From: Three-dimensional assessment of two different canine retraction techniques: a randomized split-mouth clinical trial

  PAS
Mean (mm) ± SD
DS
Mean (mm) ± SD
p value
T0–T1 0.53±0.26 0.66±0.28 0.050a
T1–T2 0.58±0.30 0.71±0.35 0.101a
T2–T3 0.44±0.20 0.72±0.39 0.000b**
Total 1.57±0.69 2.09±0.84 0.006a*
  1. PAS power arm sliding, DS direct sliding
  2. *p <0.05, **p <0.01
  3. aIndependent sample t-test
  4. bMann-Whitney U test