Skip to main content

Advertisement

Table 1 Pretreatment differences between extraction and non-extraction groups with respect to demographic characteristics and cephalometric measurements

From: Vertical skeletal changes after extraction and non-extraction treatment in matched class I patients identified by a discriminant analysis: cephalometric appraisal and Procrustes superimposition

  Extraction Non-extraction  
Variables (N = 41) (N = 42)  
N Mean ± SD Mean ± SD P value
FMA (°) 28.37 ± 3.96 26.85 ± 5.86 0.17
N-ANS/N-Me 44.45 ± 1.82 44.58 ± 2.44 0.79
SN to Go-Gn (°) 34.04 ± 3.79 33.80 ± 6.37 0.83
Y-axis (°) 60.52 ± 3.88 59.46 ± 3.56 0.20
Gonial angle (Ar-Go-Me) (°) 129.00 ± 4.82 128.42 ± 6.46 0.65
Palatal plane to SN (°) 6.77 ± 2.51 7.42 ± 4.22 0.40
Palatal plane to MP (°) 27.72 ± 4.35 26.71 ± 6.85 0.42
Age 13.71 ± 3.28 14.62 ± 3.84 0.25
Males 18 (43.90%) 18 (42.86%) 0.92
Duration (years) 2.79 ± 1.16 1.8 ± 0.65 < 0.01
P value for overall difference in the cephalometric variables 0.59