Table 6: Results of intergroup comparison between the initial and final stages of treatment (T2-T1) (independent t test or Mann-Whitney non parametric test).

Variables Group 1
Damon
(N=21) 		Group 2
Conventional
(N=24) 		P
Mean (Median) s.d. (i.r.) Mean (Median) s.d. (i.r.)
Maxillary Dentoalveolar Component
1-NA (mm) 0.95 (1.05) 2.69 (3.10) 0.90 (1.50) 3.04 (3.00) 0.671 ¥
1.NA (º) 4.73 (1.35) 7.88 (13.20) 3.83 (4.70) 7.49 (10.60) 0.938 ¥
1-Aperp (mm) 0.11 2.27 0.44 2.48 0.631 €
Mandibular Dentoalveolar Component
1-NB (mm) 1.00 1.57 1.23 1.48 0.591 €
1.NB (º) 3.80 5.56 3.06 4.77 0.614 €
1-AP (mm) 1.16 1.54 1.27 1.59 0.815 €
IMPA (º) 4.14 5.50 3.05 4.92 0.465 €
Dental Relationships
Overjet (mm) -0.57 (-0.25) 1.53 (2.15) -1.06 (-0.60) 1.47 (1.90) 0.239 ¥
Overbite (mm) -0.75 1.60 -1.51 1.33 0.069 €

Mean and standard deviation (s.d.) for Independent T test; median and interquartile range (i.r.), for Mann-Whitney non parametric test.
€ Independent t test
¥ Mann-Whitney non parametric test