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Table 2 Comparison of oropharynx and hyoid bone position between extraction and non-extraction groups

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

Variable

Extraction group (n = 120)

Non-extraction group (n = 40)

Extraction group vs Non-extraction group

T0

Mean (SD)

T1

Mean (SD)

P

T0

Mean (SD)

T1

Mean (SD)

P

P

Oropharynx

 Vol, mm3

16,123.7 (5510.6)

17,782.1 (6366.4)

0.000*

16,445.1 (5616.7)

16,621.2 (5626.2)

0.808

0.163

 MCA, mm2

243.3 (112.6)

266.7 (124.8)

0.060

236.4 (104.9)

233.9 (99.2)

0.757

0.246

 PNS-AP

27.7 (3.7)

28.2 (2.7)

0.002*

28.2 (4.2)

28.8 (3.6)

0.182

0.062

 PNS-lateral

37.8 (5.7)

40.0 (6.8)

0.000*

38.9 (5.9)

40.0 (5.7)

0.08

0.613

 PNS-AP/ lateral

0.72 (0.10)

0.71 (0.10)

0.551

0.73 (0.07)

0.73 (0.08)

0.645

0.912

 E-AP

13.1 (3.2)

13.2 (3.8)

0.446

12.4 (3.6)

12.6 (3.7)

0.624

0.325

 E- lateral

30.4 (2.9)

31.3 (3.3)

0.003*

31.1 (3.5)

30.9 (3.9)

0.668

0.649

 E-AP/lateral

0.41 (0.10)

0.42 (0.10)

0.701

0.40 (0.10)

0.41 (0.11)

0.392

0.575

Hyoid

 H-Eb

8.4 (1.7)

8.5 (2.1)

0.93

9.1 (2.6)

8.7 (2.6)

0.283

0.283

 H-Me

44.2 (4.6)

45.7 (5.7)

0.002*

45.9 (4.8)

45.2 (4.9)

0.384

0.014*

 H-C3

27.6 (3.2)

27.7 (3.2)

0.151

27.9 (3.3)

27.4 (3.7)

0.252

0.189

 H-X

8.8 (7.1)

7.1 (7.0)

0.005*

7.8 (7.2)

8.9 (7.1)

0.257

0.014*

 H-Y

93.4 (5.6)

93.8 (5.3)

0.123

95.7 (6.7)

93.8 (12.7)

0.586

0.294

  1. *P < 0.05