Table 1 Comparison of results of the cephalometric analysis of skeletal, dento-alveolar and soft tissue factors of the Polish study material compared to the control group (Björk)

Sagittal jaw relationship

1

A-N-pg

A-N-pg

2.0°

2.5°

1.31°

2.86°

1.093

n.s.

2

A-N-B

A-N-B

3.0°

2.5°

2.56°

2.44°

0.733

n.s.

Jaw prognathism

3

Maxillary (A)

S-N-A

82.0°

3.5°

81.72°

3.69°

0.385

n.s.

4

Mandibular (pg)

S-N-pg

80.0°

3.5°

80.42°

4.00°

0.562

n.s.

5

Mandibular (B)

S-N-B

79.0°

3.0°

79.16°

3.80°

0.224

n.s.

Dento-alveolar prognathism

6

Maxillary

pr-N-A

2.0°

1.0°

2.11°

1.03°

0.285

n.s.

7

Mandibular (CL)

CL/ML

70.0°

6.0°

70.88°

6.25°

0.927

n.s.

8

Mandibular (B)

pg-N-B

1.0°

2.5°

1.25°

0.88°

0.534

n.s.

Incisor inclination/base

9

Maxillary

Ils/NL

110.0°

6.0°

112.10°

7.13°

2.120

*

10

Mandibular

Ili/ML

94.0°

7.0°

94.00°

7.25°

0.000

n.s.

Vertical relationship

11

Vertical jaw relationship

NL/ML

25.0°

6.0°

21.18°

5.81°

4.116

***

12

Maxillary inclination

NL/NSL

8.0°

3.0°

8.88°

2.92°

1.339

n.s.

13

Mandibular inclination

ML/NSL

33.0°

6.0°

30.05°

6.08°

3.134

**

Vertical dento-alveolar condition

14

Maxillary zone

NL/OLs

10.0°

4.0°

7.17°

3.92°

3.721

***

15

Mandibular zone

OLi/ML

20.0°

5.0°

18.13°

3.76°

2.375

**

Mandibular morphology

16

Beta angle

19.0°

2.5°

22.13°

2.94°

4.913

***

17

Jaw angle

126.0°

6.0°

121.64°

6.70°

4.492

***

Cranial base

18

N-S-ar

124.0°

5.0°

123.67°

5.74°

0.369

n.s.

19

N-S-ba

131.0°

4.5°

130.85°

5.23°

0.176

n.s.