| |
Group 1—3 extractions (n = 31)
|
Group 2—1 extraction (n = 32)
| |
|---|
|
Variables
|
Mean
|
S.D.
|
Mean
|
S.D.
|
P
|
|---|
|
Maxillary component
|
|
SNA (°)
|
84.10
|
4.10
|
83.28
|
4.04
|
0.429
|
|
Co-A (mm)
|
82.65
|
3.81
|
83.41
|
3.53
|
0.415
|
|
Mandibular component
|
|
SNB (°)
|
79.32
|
3.98
|
79.26
|
3.06
|
0.946
|
|
Co-Gn (mm)
|
110.95
|
4.59
|
111.96
|
5.89
|
0.451
|
|
Maxillomandibular relationship
|
|
ANB (°)
|
4.77
|
1.75
|
4.02
|
2.19
|
0.137
|
|
NAP (°)
|
171.65
|
4.39
|
172.88
|
4.11
|
0.254
|
|
Growth pattern
|
|
SN.GoGn (°)
|
29.19
|
3.96
|
27.86
|
4.36
|
0.210
|
|
LAFH (mm)
|
63.43
|
4.33
|
62.32
|
4.41
|
0.316
|
|
Maxillary dentoalveolar component
|
|
Mx1.NA (°)
|
24.45
|
5.49
|
25.75
|
7.16
|
0.423
|
|
Mx1-NA (mm)
|
5.53
|
2.44
|
5.50
|
3.86
|
0.971
|
|
Mx1-PP (mm)
|
28.40
|
2.23
|
26.81
|
2.95
|
0.018a
|
|
Mx6-PP (mm)
|
20.35
|
2.36
|
19.43
|
1.98
|
0.098
|
|
Mx Molar asymmetry (mm)
|
1.99
|
0.33
|
2.19
|
0.39
|
0.025a
|
|
Mandibular dentoalveolar component
|
|
Md1.NB (°)
|
28.82
|
5.01
|
27.85
|
6.02
|
0.489
|
|
Md1-NB (mm)
|
5.87
|
1.41
|
5.94
|
2.10
|
0.872
|
|
IMPA (°)
|
97.56
|
5.83
|
99.22
|
7.93
|
0.350
|
|
Md1-GoGn (mm)
|
35.97
|
2.29
|
35.46
|
2.86
|
0.442
|
|
Md6-GoGn (mm)
|
26.83
|
2.19
|
27.32
|
2.33
|
0.387
|
|
Md Molar asymmetry (mm)
|
2.09
|
0.46
|
1.79
|
0.57
|
0.025a
|
|
Dental relationship
|
|
Overjet (mm)
|
4.88
|
1.80
|
4.96
|
1.78
|
0.856
|
|
Overbite (mm)
|
1.89
|
2.31
|
1.97
|
1.10
|
0.863
|
|
Upper lip
|
|
UL-S line (mm)
|
2.41
|
2.42
|
1.41
|
1.98
|
0.077
|
|
Prn-H (mm)
|
0.91
|
4.56
|
3.31
|
4.00
|
0.030a
|
|
Lower lip
|
|
LL-S line (mm)
|
3.50
|
3.04
|
1.95
|
2.46
|
0.029a
|
|
Facial convexity and nasolabial angle
|
|
Z Angle (°)
|
75.85
|
5.51
|
73.92
|
6.61
|
0.214
|
|
N’.Sn.Pog’(°)
|
156.08
|
5.13
|
157.63
|
6.07
|
0.276
|
|
Cm.Sn.UL (°)
|
105.07
|
8.93
|
101.23
|
8.26
|
0.081
|
-
aStatistically significant at P < 0.05
