Skip to main content

Advertisement

Table 1 Comparison of descriptives between treatment groups

From: Comparison of surgical and non-surgical orthodontic treatment approaches on occlusal and cephalometric outcomes in patients with Class II Division I malocclusions

Characteristic Non-surgical patients Surgical patients  
  Mean Median Std. deviation Mean Median Std. deviation p value
Initial discrepancy index 20.0 18.5 6.8 28.1 25.0 13.8 0.008
Final ABO-COGS deband score 22.5 21.0 8.2 23.8 23.0 9.7 0.666
Initial crowding/spacing upper 0.1 0.0 3.1 −1.0 −0.7 6.0 0.415
Initial crowding/spacing lower 0.1 0.5 4.3 −3.4 −3.7 4.0 0.415
Starting age (months) 154.6 151.5 20.9 177.1 179.0 16.1 <0.0001
Starting age (years) 12.9 12.6 1.7 14.8 14.9 1.3 <0.0001
Deband age (months) 184.8 180.0 18.4 208.7 207.0 15.2 <0.0001
Deband age (years) 15.4 15.0 1.5 17.4 17.3 1.3 <0.0001
Treatment duration (years) 2.5 2.3 0.8 2.6 2.6 0.8 0.227
Treatment duration (months) 29.5 28.0 10.0 31.5 31.8 9.5 0.227
Initial SNA 78.6 78.4 3.6 78.3 78.1 2.6 0.820
Initial SNB 74.8 74.3 3.3 72.3 72.5 3.3 0.024
Initial ANB 3.9 4.1 1.8 6.0 6.0 2.1 0.001
Initial FMIA 60.4 60.0 7.2 60.8 59.4 9.3 0.969
Initial IMPA 95.5 94.4 6.6 91.7 90.5 8.4 0.068
Initial U1 to SN 107.6 107.7 6.4 105.7 107.1 9.2 0.666
Initial Ceph overbite (mm) 4.6 5.0 1.8 4.6 5.1 3.7 0.931
Initial Ceph overjet (mm) 8.1 8.3 2.0 10.1 9.4 2.6 0.007
Deband SNA 77.8 77.3 4.0 77.7 78.5 2.6 0.772
Deband SNB 75.3 74.9 4.2 75.1 75.6 3.6 0.944
Deband ANB 2.4 2.9 1.9 2.6 2.8 2.9 0.701
Deband FMIA 56.0 56.3 7.0 58.6 57.2 5.2 0.121
Deband IMPA 100.4 100.1 5.2 92.3 92.4 7.8 <0.0001
Deband U1 to SN 101.6 100.1 7.6 102.7 101.9 10.2 0.772
Deband Ceph overbite (mm) 1.8 2.0 0.7 1.5 1.7 1.0 0.146
Deband Ceph overjet (mm) 2.9 2.8 1.2 3.1 2.8 0.9 0.354
Casts initial overjet (mm) 8.3 8.3 1.5 10.1 10.0 2.3 0.002
Cast initial overbite (mm) 4.6 5.0 1.8 3.9 4.5 2.8 0.080