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Table 4 Comparison of the changes in oropharynx and hyoid bone position among the extraction patients with different skeletal patterns

From: Oropharynx and hyoid bone changes in female extraction patients with distinct sagittal and vertical skeletal patterns: a retrospective study

Variable

Class I-norm

Class I-hyper

Class II-norm

Class II-hyper

Class I-norm vs Class I-hyper

Class I-norm vs Class II-norm

Class I-hyper vs Class II-hyper

Class II-norm vs Class II-hyper

T0

Mean (SD)

T1

Mean (SD)

p

T0

Mean (SD)

T1

Mean (SD)

p

T0

Mean (SD)

T1

Mean (SD)

p

T0

Mean (SD)

T1

Mean (SD)

p

p

p

p

p

Oropharynx

 Vol, mm3

16,393.0 (5127.0)

18,756.0 (7254.5)

0.035*

16,270.2 (5429.6)

18,552.4 (6312.2)

0.007*

16,708.3 (6318.0)

17,405.3 (5824.7)

0.345

15,123.3 (5238.0)

16,414.8 (6020.5)

0.089

0.511

0.029*

0.623

0.866

 MCA, mm2

250.6 (97.5)

288.1 (158.0)

0.176

232.1 (104.7)

264.8 (109.4)

0.084

249.6 (113.4)

263.7 (107.1)

0.405

241.0 (135.7)

250.4 (121.4)

0.687

0.764

0.085

0.033*

0.231

 PNS-AP

27.8 (4.2)

28.5 (2.9)

0.265

26.5 (3.8)

27.7 (3.3)

0.018*

27.7 (4.4)

28.1 (3.3)

0.446

26.5 (4.0)

27.6 (4.3)

0.050*

0.457

0.130

0.086

0.184

 PNS-lateral

37.3 (5.7)

40.0 (7.2)

0.006*

38.3 (6.3)

40.0 (6.1)

0.001*

39.0 (5.2)

40.1 (4.6)

0.016*

37.8 (5.1)

38.7 (5.6)

0.129

0.835

0.238

0.615

0.136

 PNS-AP/ lateral

0.71 (0.12)

0.73 (0.11)

0.237

0.68 (0.13)

0.70 (0.12)

0.797

0.69 (0.14)

0.68 (0.07)

0.299

0.72 (0.17)

0.72 (0.10)

0.441

0.348

0.690

0.469

0.160

 E-AP

13.4 (2.7)

13.5 (3.8)

0.862

12.3 (3.9)

12.5 (4.1)

0.843

12.8 (3.7)

13.0 (3.6)

0.716

12.5 (3.1)

13.0 (3.5)

0.326

0.06

0.158

0.591

0.287

 E- lateral

30.3 (3.0)

31.4 (3.5)

0.034*

30.5 (3.4)

31.2 (3.3)

0.148

31.4 (2.8)

31.7 (3.0)

0.481

31.1 (3.7)

31.6 (3.4)

0.153

0.312

0.456

0.738

0.781

 E-AP/lateral

0.44 (0.09)

0.43 (0.10)

0.171

0.40 (0.12)

0.42 (0.10)

0.465

0.40 (0.10)

0.41 (0.10)

0.719

0.40 (0.09)

0.41 (0.11)

0.349

0.176

0.425

0.976

0.584

Hyoid

 H-Eb

8.7(1.5)

8.5 (1.9)

0.750

8.6(3.1)

9.0 (2.8)

0.147

7.9(1.9)

7.7 (1.5)

0.470

7.5(1.7)

7.6 (1.7)

0.678

0.186

0.988

0.333

0.450

 H-Me

44.4(4.7)

46.0 (5.6)

0.181

45.1(4.9)

47.0 (6.6)

0.051

44.1(5.1)

44.5 (5.9)

0.580

42.3(3.7)

43.0 (4.2)

0.229

0.300

0.315

0.355

0.397

 H-C3

28.0(3.0)

28.0 (3.2)

0.965

26.5(3.0)

26.9 (3.1)

0.413

27.0(3.0)

27.0 (3.1)

0.918

26.0(3.4)

26.7 (2.6)

0.117

0.556

0.922

0.655

0.190

 H-X

9.8(6.3)

8.2 (6.4)

0.142

7.2(7.2)

5.5 (7.4)

0.060

6.9(5.4)

6.5 (6.9)

0.637

3.9(5.3)

3.7 (7.0)

0.720

0.950

0.361

0.236

0.934

 H-Y

93.2(5.8)

93.3 (5.2)

0.919

95.5(5.3)

96.5 (5.0)

0.103

95.0(4.7)

95.5 (5.4)

0.372

93.2(7.0)

92.7 (6.6)

0.221

0.492

0.706

0.041*

0.149

  1. *P < 0.05