Table 2: Cephalometric parameters in the modified twin block group.

Parameters

T1

T2

T2-T1

p

M±σ

M±σ

M±σ

S-N

62,44±2,83

64,78±2,56

2,34±1,10

***

ANS-PNS

52,38±4,99

55,04±5,31

2,66±1,07

***

SNA

82,68±2,31

83,67±2,92

1,00±1,21

**

A-N perp FH

0,42±2,44

0,68±2,28

0,27±1,16

 

Pg-N perp FH 

-10,27±2,62

-6,68±2,97

3,59±1,57

***

Co-Gn

93,10±4,09

96,67±4,87

3,57±1,77

***

Go-Me

56,43±4,18

60,06±3,96

3,63±1,48

***

SNB

75,41±2,79

79,10±2,46

3,69±1,01

***

SN/GoGn

33,51±4,82

35,47±5,23

1,96±2,02

**

Gonial angle

132,73±8,67

134,46±9,76

1,73±1,89

**

ML/FH

23,98±4,42

25,39±4,28

1,41±2,61

*

SArGo

137,86±12,06

138,18±9,73

0,33±3,80

 

WITS

5,33±0,74

2,43±0,69

-2,89±0,80

***

Co-A

77,69±4,35

78,45±4,88

0,76±1,99

 

Max-Mand diff.

16,26±2,96

19,07±4,43

2,81±2,72

***

ANB

7,25±2,00

4,39±1,85

-2,87±0,89

***

PL/ML

24,64±4,70

24,75±4,69

0,11±1,85

 

Up. inc.-NA angle 

31,35±3,27

24,09±4,71

-7,25±4,97

***

Up. inc.-NA distance

5,60±1,39

3,59±1,59

-2,00±1,73

***

Low. inc.-NB angle

29,03±5,85

33,98±5,93

4,95±3,41

***

Low. inc.-NB distance

4,57±1,50

6,03±1,53

1,46±1,39

***

Pg-NB distance

2,58±1,63

1,93±1,73

-0,64±1,36

 

Holdaway

2,11±2,31

3,83±1,84

1,72±1,23

***

Overjet

7,68±1,54

3,26±0,84

-4,43±1,41

***

Overbite

5,01±0,96

3,75±0,71

-1,26±0,93

***

Okl/SN

14,56±3,28

16,19±3,93

1,63±2,19

**

Alt k/ML

94,96±4,81

98,99±5,52

4,04±1,68

***

Inter-incisal

121,22±14,45

124,22±10,99

3,01±7,43

 

N-ANS

49,66±7,27

52,84±7,36

3,18±0,96

***

ANS-Me

55,46±3,20

57,87±4,00

2,41±2,50

**

N-Me

103,81±6,39

109,08±6,98

5,27±1,20

***

S-Go

71,34±5,64

76,24±6,25

4,90±1,83

***

Upper lip-E distance 

1,64±1,55

0,19±2,42

-1,45±1,80

**

Lower lip-E distance 

0,71±1,65

-0,38±3,07

-1,09±2,25

 

Interlabiale

1,71±2,05

0,18±0,05

-1,53±2,05

**

Nasolabial angle

121,33±9,45

122,88±7,55

1,56±6,68

 

Labiomental angle

121,44±7,66

135,47±9,64

14,03±13,15

***

T1: before treatment; T2: after treatment.

*: p<0,05; **: p<0,01; ***: p<0,001.