[Retracted] Comparison of Movement of the Upper Dentition According to Anchorage Method: Orthodontic Mini-Implant versus Conventional Anchorage Reinforcement in Class I Malocclusion
Table 3
Comparison of the anchorage variables before (T0) and after orthodontic treatment (T1) and amount of change (T1-T0) between Groups 1 and 2.
T0
T1
T1-T0
Group 1
Group 2
Group 1
Group 2
Group 1
Group 2
Anchorage variables
()
()
Sig.
()
()
Sig.
()
()
Sig.
Mean
SD
Mean
SD
Mean
SD
Mean
SD
Mean
SD
Mean
SD
Angular
U1-PP
125.67
4.45
123.55
3.26
0.0934
109.47
5.93
104.43
5.77
0.0096
16.20
5.59
19.13
6.91
0.1493
U6-PP
86.67
4.70
83.96
4.75
0.0767
86.92
5.07
83.47
4.98
0.0360
−0.25
3.29
0.49
4.34
0.5494
Linear
Anteroposterior
UIE
62.98
3.27
63.78
3.77
0.4784
55.89
4.18
54.33
4.48
0.2634
7.10
2.42
9.45
3.59
0.0199
UIA
48.77
3.06
50.37
3.23
0.1169
47.70
3.91
48.76
2.77
0.3324
1.07
1.98
1.61
1.82
0.3717
U6M
31.45
3.53
31.87
3.29
0.6993
33.64
3.58
32.10
3.34
0.1692
−2.19
1.40
−0.24
1.62
0.0002
U6A
29.05
3.07
30.82
3.10
0.0779
31.46
3.09
31.08
3.15
0.6991
−2.42
1.68
−0.27
1.15
0.0000
Vertical
UIE
31.38
2.26
32.87
2.71
0.0666
32.02
2.25
31.98
3.04
0.9555
−0.65
1.23
0.89
1.57
0.0014
UIA
11.66
1.91
11.07
2.95
0.4577
10.33
2.17
8.20
2.52
0.0066
1.33
0.96
2.88
2.03
0.0039
U6C
26.41
1.99
26.70
1.63
0.6227
26.58
1.88
25.76
1.95
0.1804
−0.17
1.32
0.95
1.53
0.0187
U6F
14.10
2.06
15.66
1.95
0.0189
14.97
2.05
14.64
2.31
0.6288
−0.87
0.95
1.02
1.27
0.0000
Mann-Whitney test was performed. U1 means a long axis of the upper central incisor from the incisor tip (UIE) to apex (U1A) of the upper central incisor; U6: a long axis of the upper first molar from the center of the upper first molar crown on the occlusal surface (U6C) to the furcation of the upper first molar (U6F); PP: palatal plane; UIE: incisor edge of the upper central incisor; UIA: root apex of the upper central incisor; U6M: most mesial point of the mesial surface of the upper first molar crown; U6A: mesiobuccal root apex of the upper first molar; U6C, midpoint between the mesiobuccal and distobuccal cusps of the upper first molar; U6F: furcation point of the upper first molar. Sig.: significance; ; ; .
