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Table. 2.

Comparison of miniplate measurements according to skeletal malocclusion classification

Variable Skeletal classification p-value
Class I (n = 33) Class II (n = 50) Class III (n = 14)
PH (mm) 11.32 ± 2.05 11.41 ± 2.15 11.69 ± 1.80 0.8841
PD1 (mm) 1.97 ± 0.33 2.04 ± 0.48 2.02 ± 0.46 0.7208
PD2 (mm) 2.22 ± 0.32 2.28 ± 0.42 2.09 ± 0.36 0.2567
PA (°) 50.57 ± 9.25b 54.24 ± 12.59b 63.32 ± 8.55a 0.0039
MA (°) 142.08 ± 7.12 139.25 ± 9.40 143.15 ± 6.74 0.4629

Values are presented as mean ± standard deviation.

Kruskal Wallis test with Bonferroni post-hoc analysis was performed.

PH, vertical distance from the cementoenamel junction to the center of the miniplate anchoring screw (MPAS) at position 1; PD, distance from the outer surface of the labial cortical bone to the tip of the MPASs at positions 1 (PD1) and 2 (PD2); PA, angle of the miniplate placed on the mandibular symphysis; MA, angle made by the two tangents, with one from the most prominent midpoint of the chin and the other from the prominent point on the buccal root surface.

a,bStatistically significant differences between skeletal malocclusion types in PA; p < 0.05.

Korean J Orthod 2021;51:231~240 https://doi.org/10.4041/kjod.2021.51.4.231
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