pISSN 2234-7518
eISSN 2005-372X

Comparison of soft tissue measurements between the Dv and NDv and between the three mandibular asymmetry groups

Roll Yaw Translation
Mean ± SD P value
(between the sides)
Mean ± SD P value
(between the sides)
Mean ± SD P value
(between the sides)
Vertical distance
Nasal alae (Al)
Dv 24.37 ± 2.85 < 0.001*** 24.27 ± 3.00 < 0.001*** 23.35 ± 2.67 0.181
NDv 25.81 ± 2.74 25.04 ± 3.18 24.08 ± 2.55
ΔNDv−Dv 1.44 ± 0.83a - 0.77 ± 1.03b - 0.73 ± 0.84b -
Nasal alar curvature (Ac)
Dv 26.67 ± 2.84 < 0.001*** 26.81 ± 3.02 < 0.001*** 25.77 ± 2.71 0.001**
NDv 28.15 ± 2.77 27.55 ± 3.28 26.46 ± 2.49
ΔNDv−Dv 1.48 ± 0.96a - 0.74 ± 0.90b - 0.68 ± 0.97b -
Cheilion (Ch)
Dv 56.41 ± 3.78 < 0.001*** 55.94 ± 4.85 < 0.001*** 55.14 ± 4.18 < 0.001***
NDv 59.65 ± 4.19 57.96 ± 5.25 57.21 ± 3.98
ΔNDv−Dv 3.24 ± 1.32a - 1.76 ± 1.23b - 2.06 ± 0.88b -
Subchin
Dv 101.88 ± 6.53 < 0.001*** 102.54 ± 6.60 < 0.001*** 101.58 ± 8.17 < 0.001***
NDv 104.02 ± 6.89 103.65 ± 6.97 102.20 ± 8.10
ΔNDv−Dv 2.13 ± 1.14a - 1.10 ± 0.95b - 0.62 ± 0.77b -
Transverse distance -
Glabella (G’) −0.14 ± 1.06 - 0.12 ± 1.16 - −0.20 ± 1.22
Nasion (N’) 0.06 ± 1.05 - 0.27 ± 1.03 - 0.11 ± 1.06 -
Pronasale (Prn) 0.69 ± 1.54a - 1.99 ± 1.72b - 0.91 ± 1.48a -
Nasal alae (Al)
Dv 19.58 ± 2.02a 0.037* 20.86 ± 2.14b < 0.001*** 19.71 ± 1.78a,b < 0.001***
NDv 18.46 ± 1.90 17.63 ± 2.35 17.93 ± 1.53
ΔNDv−Dv −1.12 ± 2.81a - −3.23 ± 2.91b - −1.78 ± 2.41a,b -
Nasal alar curvature (Ac)
Dv 19.87 ± 1.72 0.006** 20.82 ± 1.86 < 0.001*** 20.13 ± 1.79 < 0.001***
NDv 18.41 ± 1.78 17.92 ± 2.48 18.13 ± 1.26
ΔNDv−Dv −1.45 ± 2.71 - −2.90 ± 2.82 - −2.00 ± 2.22 -
Nasolabial fold (NLF)
Dv 30.49 ± 3.40 < 0.001*** 31.37 ± 3.58 < 0.001*** 29.98 ± 3.48 < 0.001***
NDv 26.23 ± 3.06 26.31 ± 3.69 25.90 ± 2.90
ΔNDv−Dv −4.26 ± 3.57 - −5.06 ± 3.40 - −4.08 ± 2.53 -
Subnasale (Sn) 1.08 ± 1.43a - 2.05 ± 1.72b - 1.30 ± 1.16a,b -
Labrale superioris (Ls) 1.92 ± 1.54 - 2.97 ± 2.15 - 1.94 ± 1.37 -
Stomion superioris (Stms) 2.56 ± 1.59 - 3.48 ± 2.31 - 2.42 ± 1.41 -
Stomion inferioris (Stmi) 3.34 ± 1.69 - 4.27 ± 2.56 - 3.11 ± 1.71 -
Labrale inferioris (Li) 4.29 ± 1.84 - 5.30 ± 2.98 - 3.99 ± 1.81 -
Cheilion (Ch)
Dv 26.08 ± 2.80a < 0.001*** 28.44 ± 3.52b < 0.001*** 26.16 ± 2.59a < 0.001***
NDv 20.42 ± 2.62 20.30 ± 3.03 20.24 ± 2.49
ΔNDv−Dv −5.67 ± 4.34 - −8.15 ± 4.57 - −5.92 ± 3.43 -
Soft tissue B point (B’) 5.19 ± 2.08 - 5.88 ± 3.12 - 4.43 ± 1.91 -
Soft tissue pogonion (Pog’) 6.86 ± 2.67a,b - 7.10 ± 3.50a - 5.35 ± 2.13b -
Soft tissue menton (Me’) 8.14 ± 3.22a - 7.69 ± 3.69a,b - 5.94 ± 2.27b -
Anteroposterior distance
Nasal alae (Al)
Dv 27.55 ± 4.50 0.205 28.07 ± 3.97 < 0.001*** 28.40 ± 3.88 0.050
NDv 27.97 ± 4.64 29.20 ± 4.22 29.01 ± 4.02
ΔNDv−Dv 0.43 ± 1.81 - 1.13 ± 1.23 - 0.61 ± 1.63 -
Nasal alar curvature (Ac)
Dv 22.10 ± 4.51 0.278 22.59 ± 3.34 < 0.001*** 23.19 ± 3.76 0.113
NDv 22.36 ± 4.77 23.91 ± 3.77 23.60 ± 3.91
ΔNDv−Dv 0.26 ± 1.28a - 1.32 ± 1.13b - 0.41 ± 1.37a -
Nasolabial fold (NLF)
Dv 21.39 ± 5.01 0.057 22.53 ± 3.53 < 0.001*** 23.19 ± 4.08 0.008**
NDv 21.84 ± 4.84 24.57 ± 4.36 23.80 ± 4.34
ΔNDv−Dv 0.46 ± 1.26a - 2.04 ± 1.81b - 0.60 ± 1.16a -
Cheilion (Ch)
Dv 24.50 ± 5.45 0.120 26.23 ± 4.67 0.001** 26.97 ± 5.21 0.234
NDv 23.89 ± 5.12a 27.56 ± 5.12b 26.66 ± 5.08a,b
ΔNDv−Dv −0.62 ± 2.10a - 1.33 ± 2.05b - −0.32 ± 1.43a -
Midchin
Dv 25.17 ± 6.12a < 0.001*** 29.73 ± 7.28b 0.369 29.96 ± 6.68b < 0.001***
NDv 23.55 ± 6.27a 29.95 ± 7.84b 28.86 ± 6.53b
ΔNDv−Dv −1.63 ± 1.67a - 0.22 ± 1.31b - −1.11 ± 1.21a -
Angulation
Nasal bridge to MSP 0.79 ± 1.19a - 2.10 ± 1.77b - 1.16 ± 1.54a -
Philtrum to MSP 3.67 ± 2.34 - 3.97 ± 3.50 - 3.12 ± 1.86 -
Ch line to FHP 3.95 ± 1.51a - 2.09 ± 1.47b - 2.55 ± 1.09b -
Chin midline to MSP 4.90 ± 2.71a - 3.04 ± 1.85b - 2.55 ± 1.41b -
Nasolabial fold to MSP
Dv 42.28 ± 7.98 < 0.001*** 43.04 ± 7.05 < 0.001*** 40.55 ± 7.29 < 0.001***
NDv 36.75 ± 7.38 38.00 ± 6.91 35.37 ± 8.57
ΔNDv−Dv −5.54 ± 5.38 - −5.05 ± 4.36 - −5.17 ± 5.09 -

Dv, deviated side; NDv, nondeviated side; SD, standard deviation; ΔNDv−Dv, difference between the NDv and Dv; Subchin, 15 mm lateral to Me’ on the lower chin contour; Midchin, chin point at the level of midpoint of Ch and Subchin; MSP, midsagittal plane; MHP, mandibular horizontal plane; FHP, Frankfort horizontal plane; -, not applicable.

Values in the same row with no superscript are not statistically significant, and those with different superscript letters (a,b,c) are significantly different at P < 0.05 according to one-way analysis of variance with Tukey’s post-hoc test.

Paired t test was performed to compare the Dv and NDv; significant difference at *P < 0.05, **P < 0.01, and ***P < 0.001 between the Dv and NDv.

Korean J Orthod 2023;53:402~419 https://doi.org/10.4041/kjod23.106
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