Table 1: Comparison between initial and final stages of Damon group (dependent T test or Wilcoxon non-parametric test) (N=20).

Variables Initial Stage T1 Final Stage T2 P
Mean (Median) s.d. (i.r.) Mean (Median) s.d. (i.r.)
Maxillary Dentoalveolar Component
1-NA (mm) 5.14 2.73 6.10 2.76 0.129
1.NA (º) 24.37 7.88 29.10 6.98 0.014*
1-Aperp (mm) 6.83 2.12 6.95 2.61 0.823
Mandibular Dentoalveolar Component
1-NB (mm) 5.99 2.66 6.99 2.42 0.010*
1.NB (º) 29.60 (30.30) 6.14 (5.05) 33.40 (35.20) 6.63 (7.90) 0.008*¥
1-AP (mm) 3.56 2.27 4.73 1.94 0.003*
IMPA (º) 96.83 (99.25) 6.83 (8.15) 100.97 (101.90) 7.29 (8.70) 0.004*¥
Dental Relationships
Overjet (mm) 3.67 (3.65) 1.69 (2.35) 3.10 (2.85) 0.76 (0.75) 0.163 ¥
Overbite (mm) 2.61 1.77 1.85 0.72 0.049*

Mean and standard deviation (s.d.) for dependent T test; median and interquartile range (i.r.) for Wilcoxon’s test.
* Statistical significance for p<0.05
Dependent T test
¥ Non parametric Wilcoxon’s test

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