Abstract
Objective
Methods
Figures and Tables
Figure 1
Cephalometric landmarks indicated on three-dimensional cone beam computed tomography images. A, 45° lateral view; B, 90° lateral view (clipping view); C, inferior view; D, superior view.
![kjod-50-3-g001](/upload/SynapseData/ArticleImage/1123kjod/kjod-50-3-g001.jpg)
Figure 2
The midsagittal plane (MSP) established by different reorientation methods. A, Superolateral view. B, Superior view. C, Frontal view.
![kjod-50-3-g002](/upload/SynapseData/ArticleImage/1123kjod/kjod-50-3-g002.jpg)
Figure 3
The three-dimensional coordinate systems used in this study.
![kjod-50-3-g003](/upload/SynapseData/ArticleImage/1123kjod/kjod-50-3-g003.jpg)
Table 3
The distances of the landmarks to the MSPs according to the RMs (mm)
![kjod-50-3-i003](/upload/SynapseData/ArticleImage/1123kjod/kjod-50-3-i003.jpg)
MSP, Midsagittal plane; RM, reorientation method; SD, standard deviation; MidOr, midorbitale; MidFZS, midfrontozygomatic suture; MidPo, midporion.
*Group 1 consisted of 10 patients with skeletal Class I malocclusion and a menton (Me) deviation of less than 2 mm, group 2 included 11 patients with skeletal Class III malocclusion and a Me deviation of less than 2 mm, group 3 consisted of nine patients with skeletal Class III malocclusion and a Me deviation of 2 to less than 4 mm, and group 4 included 13 patients with skeletal Class III malocclusion and a Me deviation of more than 4 mm.
See Table 2 for definitions of the other landmarks.
Table 4
The MADs according to the RMs for the groups (mm)
![kjod-50-3-i004](/upload/SynapseData/ArticleImage/1123kjod/kjod-50-3-i004.jpg)
Values are presented as mean ± standard deviation.
MAD, Mean absolute distance; RM, reorientation method.
*p < 0.05 by two-way repeated-measures analysis of variance (ANOVA) with Greenhouse–Geisser; †p > 0.05 by two-way repeated-measures ANOVA.
‡Group 1 consisted of 10 patients with skeletal Class I malocclusion and a menton (Me) deviation of less than 2 mm, group 2 included 11 patients with skeletal Class III malocclusion and a Me deviation of less than 2 mm, group 3 consisted of nine patients with skeletal Class III malocclusion and a Me deviation of 2 to less than 4 mm, and group 4 included 13 patients with skeletal Class III malocclusion and a Me deviation of more than 4 mm.
Table 6
Landmarks showing significance in the difference in values of those coordinates among RMs in within-group comparisons (mm)
![kjod-50-3-i006](/upload/SynapseData/ArticleImage/1123kjod/kjod-50-3-i006.jpg)
RM, Reorientation method; Δ X, difference value for the x coordinate; Δ Y, difference value for the y coordinate; Δ Z, difference value for the z coordinate; SD, standard deviation.
*p < 0.05.
†Group 1 consisted of 10 patients with skeletal Class I malocclusion and a menton (Me) deviation of less than 2 mm, group 2 included 11 patients with skeletal Class III malocclusion and a Me deviation of less than 2 mm, group 3 consisted of nine patients with skeletal Class III malocclusion and a Me deviation of 2 to less than 4 mm, and group 4 included 13 patients with skeletal Class III malocclusion and a Me deviation of more than 4 mm.
See Figure 1, Tables 2 and 3 for definitions of each landmark or measurement.
Table 7
Landmarks showing significance in the difference in values of those coordinates among RMs in between-group comparisons (mm)
![kjod-50-3-i007](/upload/SynapseData/ArticleImage/1123kjod/kjod-50-3-i007.jpg)
*p < 0.05 by one-way analysis of variance.
†Group 1 consisted of 10 patients with skeletal Class I malocclusion and a menton (Me) deviation of less than 2 mm, group 2 included 11 patients with skeletal Class III malocclusion and a Me deviation of less than 2 mm, group 3 consisted of nine patients with skeletal Class III malocclusion and a Me deviation of 2 to less than 4 mm, and group 4 included 13 patients with skeletal Class III malocclusion and a Me deviation of more than 4 mm.
See Tables 3 and 6 for definitions of each landmark or measurement.
Notes
References
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