pISSN 2234-7518
eISSN 2005-372X

Table. 3.

Group comparisons of significant dentoskeletal variables

Dentoskeletal variable Comparison of subset
Horizontal skeletal relationships
Sella-Nasion-B point angle (°) (1 > 2, 3, 4, 5); (2, 3 > 4, 5)
N-perpendicular to pogonion (mm) (1 > 2, 3, 4, 5); (2, 3 > 4, 5)
A point-Nasion-B point angle (°) (1 < 2, 3, 4, 5); (2 < 3, 4, 5)
Vertical skeletal relationships
Frankfort horizontal plane to mandibular plane angle (°) (1 < 3, 4, 5); (2 < 3, 4, 5)
Maxillomandibular plane angle (°) (1 < 3, 4, 5); (2 < 3, 4, 5)
Posterior facial height (mm) (1 > 3, 4, 5); (2 > 4, 5)
Facial height ratio (%) (1 > 3, 4, 5); (2 > 4, 5)
Mandibular relationships
Ramus height (mm) (1 > 3, 4, 5); (2 > 4, 5)
Ramus inclination (°) (1 < 4, 5); (2, 3 < 4, 5)
Mandibular body length (mm) (1 > 3, 4, 5); (2 > 4, 5)
Total mandibular body length (mm) (1 > 2, 3, 4, 5); (2, 3 > 4, 5)
Mandibular body length ratio (%) (1 > 3, 4, 5); (2 > 5)
Dental relationships
Frankfort horizontal plane to mandibular incisor angle (°) (1 > 2, 3, 4, 5); (2, 3 > 4, 5)
Interincisal angle (°) (1 > 4, 5); (2 > 4, 5)
Mandibular incisor to mandibular plane angle (°) (1 < 2, 4, 5)
Overjet (mm) (1 < 2, 3, 4, 5); (2 < 4, 5)

1, bilateral normal disk position group; 2, bilateral anterior disk displacement with reduction group; 3, bilateral rotational disk displacement with reduction group; 4, bilateral anterior disk displacement without reduction group; 5, bilateral rotational disk displacement without reduction group.

The Mann–Whitney U test with Bonferroni correction was performed to analyze dentoskeletal differences between subset groups.

Korean J Orthod 2021;51:105~114 https://doi.org/10.4041/kjod.2021.51.2.105
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