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Table 5 Descriptive statistics and statistical comparisons of the T1-T3 changes

From: Mechanisms of Class II correction induced by the crown Herbst appliance as a single-phase Class II therapy: 1 year follow-up

Cephalometric measures cHerbst group Control group Net change P value
  Mean SD Mean SD
Skeletal measures       
 Co hor (mm) −1.5 1.5 −1.0 1.5 −0.5 0.240
 Co ver (mm) 0.6 1.5 0.9 1.7 −0.3 0.401
 A hor (mm) 1.3 1.8 1.3 2.0 0.0 0.886
 B hor (mm) 2.4 2.6 1.8 2.5 0.6 0.467
 Pg hor (mm) 2.5 2.9 2.4 3.1 0.1 0.837
 Me ver (mm) 4.9 3.0 3.8 3.4 1.1 0.221
 Co-A (mm) 3.2 2.3 2.3 2.1 0.9 0.172
 Co-Gn (mm) 5.8 2.9 4.3 3.4 1.5 0.082
 Co-Go (mm) 4.4 3.8 3.1 2.5 1.3 0.214
 Go-Me (mm) 2.4 3.4 2.1 3.0 0.3 0.752
 SNA (°) 0.1 1.2 −0.1 1.6 0.2 0.549
 SNB (°) 1.1 1.1 0.2 1.3 0.9 0.014
 SNPog (°) 1.0 1.1 0.4 1.3 0.6 0.104
 ANB (°) −1.0 1.2 −0.4 0.7 −0.6 0.035
 pp to T-FMN (°) 0.7 1.1 −0.4 1.8 1.1 0.005
 ml to T-FMN (°) −0.4 2.1 −0.7 1.7 0.3 0.488
 Co-Go-Me (°) 0.0 2.7 0.1 2.5 −0.1 0.923
Dental measures       
 Overjet (mm) −2.0 1.6 −0.6 1.6 −1.4 0.003
 Overbite (mm) −1.4 1.0 −0.4 1.0 −1.0 0.000
 ms hor (mm) 0.6 2.7 2.0 2.5 −1.4 0.065
 ms ver (mm) 3.0 1.9 2.5 2.3 0.5 0.332
 Upper molar tipping (°) −1.2 4.8 3.1 5.1 −4.3 0.003
 mi hor (mm) 4.1 2.3 2.0 2.4 2.1 0.003
 mi ver (mm) 3.6 2.1 2.3 2.3 1.3 0.078
 is hor (mm) 0.8 2.4 1.2 2.1 −0.4 0.527
 is ver (mm) 2. 8 1.9 1.6 2.0 1.2 0.041
 ii hor (mm) 2.8 2.1 1.7 2.1 1.1 0.058
 ii ver (mm) 4.2 2.1 2.0 2.3 2.2 0.001
 Upper incisor inclination (°) −2.9 4.9 −0.6 2.9 −2.3 0.081
 Lower incisor inclination (°) 1.4 4.6 −1.4 4.0 2.8 0.026