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Table 4 Comparison between the right and left condylar movements of the Class I and Class II Division 1 groups

From: Evaluation of mandibular motion in adolescents with skeletal class II division 1 malocclusion during mandibular advancement using clear functional aligners: a prospective study

Variables

Class I (n = 30)

Class II Division 1 (n = 31)

Left condyle

Right condyle

p

Left condyle

Right condyle

p

LCX - RCX (mm)

7.57(6-8.64)

7.4(6.05–8.48)

0.546

8.07(6.77–9.2)

7.77(6.03–8.5)

0.031*

LCY - RCY (mm)

0.63(0.37–0.92)

0.62(0.37–0.92)

0.816

0.73(0.53–1.03)

0.73(0.5–1.07)

0.878

LCZ - RCZ (mm)

5.92(4.48–7.14)

5.6(4.59–7.02)

0.695

6.07(4.83–7.27)

5.3(4.3–7.3)

0.096

LCS - RCS (mm)

9.61(8.29–10.85)

9.57(8.5-10.71)

0.373

10.12(9.05–11.79)

9.66(8.98–10.77)

0.020*

LCSCI – RCSCI (°)

48.32(39.2-53.57)

47.78(38.03–52.33)

0.643

46.7(35.77–51.23)

48.4(38-50.97)

0.652

LCTCI – RCTCI (°)

4.27(2.2–6.84)

4.62(2.13–7.73)

0.524

4.57(2.67–6.27)

5.47(2.8–7.63)

0.118

  1. Note Values are presented as medians (upper and lower quartiles)
  2. *Statistically significant difference was evaluated by the Wilcoxon signed-rank test, with a significance level of P < 0.05
  3. RCX/LCX: The right/left condyle maximum sagittal anteroposterior displacement on the X-axis. RCY/LCY: The right/left condyle maximum left-right displacement on the Y-axis. RCZ/LCZ: The right/left condyle maximum superoinferior displacement on the Z-axis. RCSCI: The right condylar inclination in the sagittal plane when the displacement is 5 mm. LCSCI: The left condylar inclination in the sagittal plane when the displacement is 5 mm. RCTCI: The right condylar inclination in the transverse plane when the displacement is 5 mm. LCTCI: The left condylar inclination in the transverse plane when the displacement is 5 mm