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Table 2 Chephalometric dental parameters of the groups and corresponding changes ( n = 17 per group)

From: Skeletal and dental effects produced by functional regulator-2 in pre-pubertal class II patients: a controlled study

Parameter Group Time point Changes ES coefficient
T0 T1
Molar relationship (mm) Treated −1.3 ± 1.7 0.9 ± 1.5* 2.2 ± 2.2 1.0 (0.3-1.7)
Control −1.8 ± 1.7 −1.4 ± 1.7 0.4 ± 1.1
Difference   NS p < 0.001 p < 0.01 p < 0.01
U1/FH angle (°) Treated 116.6 ± 5.7 112.8 ± 5.9* −3.8 ± 3.7 1.1 (0.4-1.8)
Control 113.0 ± 9.3 114.6 ± 8.2 1.5 ± 5.3
Difference   NS NS p < 0.01 p < 0.01
L1/Mandibular plane angle (°) Treated 98.5 ± 5.7 101.8 ± 5.1* 3.3 ± 3.5 0.7 (0.0-1.3)
Control 95.4 ± 5.7 95.9 ± 4.8 0.5 ± 4.8
Difference   NS p < 0.001 NS p < 0.05
Overjet (mm) Treated 8.3 ± 1.5 5.3 ± 1.4** −3.1 ± 1.3 2.1 (1.3-2.9)
Control 7.5 ± 2.1 7.3 ± 2.4 −0.2 ± 1.4
Difference   NS p < 0.05 p < 0.001 p < 0.01
Overbite (mm) Treated 2.8 ± 1.6 3.7 ± 1.5 0.9 ± 2.1 0.2 (−0.5-0.8)
Control 3.6 ± 1.9 4.2 ± 1.5 0.6 ± 1.4
Difference   NS NS NS NS
  1. Data are presented as mean ± SD or mean (95% confidence interval). For the ES coefficient, the null hypothesis is to be equal to zero. NS, difference not statistically significant. Significant difference with the corresponding baseline value: *p < 0.01, **p < 0.001.