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Table 3 Intergroup comparison of skeletal, dental, soft tissue, pharyngeal airway, cervical posture, hyoid bone position, and soft palate changes

From: Dentoalveolar, skeletal, pharyngeal airway, cervical posture, hyoid bone position, and soft palate changes with Myobrace and Twin-block: a retrospective study

 

Myobrace

Twinblock

 

Parameters

Mean ± SD (T1–T0)

Mean ± SD (T1–T0)

p value

SNA (°)

0.20 ± 1.04

− 0.44 ± 0.97

0.554

SNB (°)

0.61 ± 0.80

1.31 ± 1.42

0.52a

ANB (°)

− 0.38 ± 1.19

− 1.75 ± 1.08

0.608

U1–NA (mm)

− 1.18 ± 2.0

− 0.66 ± 6.61

0.210

U1/NA (°)

− 4.99 ± 8.50

− 2.33 ± 6.60

0.560

L1–NB (mm)

0.54 ± 0.96

1.60 ± 1.29

0.074

L1/NB (°)

3.07 ± 3.83

3.79 ± 4.03

0.461

Pg–NB (mm)

0.54 ± 1.53

− 0.06 ± 0.60

0.257a

SN/GoGn (°)

0.66 ± 1.84

0.96 ± 1.44

0.409

Interincisal Angle

− 1.70 ± 8.98

− 4.71 ± 10.37

0.651

FMA (°)

0.66 ± 3.07

1.65 ± 2.95

0.703

FMIA (°)

− 3.50 ± 4.93

− 2.16 ± 4.15

0.730

IMPA (°)

2.84 ± 3.80

2.53 ± 4.42

0.617

Cd–Gn (mm)

2.31 ± 8.4

4.77 ± 4.60

0.310a

Go–Pg (mm)

1.61 ± 5.14

2.68 ± 3.70

0.861

Cd–Go (mm)

1.43 ± 5.59

2.93 ± 2.59

0.181a

U1/SN (°)

− 4.88 ± 8.89

− 1.77 ± 7.08

0.443

U1/PP (°)

− 4.12 ± 3.07

− 3.37 ± 2.95

0.703

FH/MP (°)

− 0.10 ± 0.44

− 0.35 ± 0.74

0.041*

Overbite

− 0.10 ± 2.27

− 0.21 ± 1.94

0.502

Overjet

− 2.92 ± 3.47

− 2.99 ± 1.93

0.331a

NAPg (°)

1.75 ± 1.15

3.71 ± 1.28

0.559a

SNPg (°)

0.93 ± 2.42

1.25 ± 2.31

0.648

MeGoArticulare

− 0.66 ± 5.06

− 1.21 ± 3.35

0.578

Gla-Sub-Pg (°)

2.66 ± 3.67

4.34 ± 7.50

0.086a

Nasiolabial angle

0.54 ± 11.48

2.48 ± 12.51

0.831

Mentolabial angle

8.36 ± 2.40

12.34 ± 1.63

0.450a

Upper lip—E line

0.17 ± 2.67

0.25 ± 1.40

0.354a

Lower lip—E line

− 0.79 ± 2.40

− 1.51 ± 1.54

0.055a

PNS–AD2 (mm)

4.51 ± 3.76

43.3 ± 3.22

0.475

PNS–AD1 (mm)

0.23 ± 3.87

0.29 ± 1.84

0.009*

AD1Ba

0.60 ± 6.03

− 0.65 ± 3.10

0.107a

AD2–H (mm)

0.57 ± 4.12

9.82 ± 3.16

0.572a

PNS–Ba (mm)

0.12 ± 4.39

0.20 ± 3.55

0.744

Ptm–Ba (mm)

− 0.32 ± 2.34

− 1.31 ± 1.82

0.055a

PNS–H (mm)

5.17 ± 1.66

53.13 ± 2.10

0.768a

SP thickness (mm)

0.30 ± 3.06

0.80 ± 2.60

0.765

SP length (mm)

0.90 ± 6.74

− 0.58 ± 5.65

0.192

SP angle (°)

− 2.31 ± 6.07

− 4.27 ± 6.20

0.943

SN/OPT (°)

3.25 ± 5.75

2.31 ± 6.25

0.855

SN/CVT (°)

3.69 ± 7.72

3.55 ± 6.8

0.980

OPT/HR (°)

− 3.44 ± 7.32

− 0.31 ± 6.65

0.976

CVT/HR (°)

2.28 ± 1.82

0.92 ± 4.58

0.038a*

OPT/CVT (°)

− 0.06 ± 10.26

− 0.13 ± 6.56

0.245a

Hi–VR (mm)

3.23 ± 8.91

3.08 ± 5.00

0.246a

Hi–HR (mm)

1.94 ± 7.2

2.23 ± 6.72

0.771

  1. aMann–Whitney U test, * Statistically significant changes (p < 0.05), SD: Standard deviation, Linear and angular cephalometric points measured: SNA, sella–nasion–point A angle; SNB, sella–nasion–point B angle; ANB, point A–nasion–point B angle; A/OLp, linear position of the maxillary base; Pg/OLp, linear position of the mandibular base; N-A-Pg, angle between points of nasion, A, and pogonion; SN/GoGn, the angle between Sella–nasion and gonion–gnathion planes; Co–A, maxillary length; Co–Gn, mandibular real length; L1–NB, lower incisor-nasion/point B line (mm and angle); IMPA, angle between lower incisor long axis and mandibular plane. 1/NA, upper incisor–nasion/point A line (angle and mm); U1/SN, angle between upper incisor long axis and sella–nasion plane; U1/L1, interincisal angle; Is/OLp, position of the maxillary central incisor; Ii/OLp, position of the mandibular central; Mi/OLp, position of the lower first molar; Ms/OLp, position of the upper first molar; Z angle, porion point/orbital point (Frankfort plane)—line E (Ricketts line profile) angle