Table 3.

Evolution of cephalometric measurements in the control and test groups during the study period

Variable	Control group	Test group	p-value
Inter-incisor angle (°)
T0	123.0 ± 9.54	123.0 ± 8.32	0.91
T3	121.0 ± 9.00	121.0 ± 8.77	0.95
IMPA (°)
T0	102.0 ± 9.82	98.4 ± 5.74	0.13
T3	99.7 ± 8.51	97.3 ± 7.26	0.37

Values are presented as mean ± standard deviation.

Two-sided unpaired Student’s t-test for the comparison between groups at each time point.

T0, Baseline; T3, 12 months; IMPA, incisor mandibular plane angle.