Based on age group

N

Mean

Std. Deviation

Std. Error Mean

F

P value

Mesio-distal diameter of incisive fossa

Age group I

134.00

2.51

1.09

0.09

.356

.551

Age group II

54.00

2.57

1.01

0.14

Age group III

12.00

3.00

1.10

0.32

Angulation of the NPC to the Hard Palate

Age group I

134.00

113.02

7.41

0.64

.191

.662

Age group II

54.00

111.32

7.49

1.02

Age group III

12.00

112.30

6.87

1.98

Length of NPC

Age group I

134.00

10.16

2.20

0.19

38.241

.000*

Age group II

54.00

10.29

2.49

0.34

Age group III

12.00

15.82

20.91

6.04

Anteroposterior width of the NPC at the Nasal Fossa Level

Age group I

134.00

1.97

0.76

0.07

.718

.398

Age group II

54.00

2.04

0.78

0.11

Age group III

12.00

2.10

0.92

0.27

Anteroposterior width of the NPC at Mid Level

Age group I

134.00

1.64

0.87

0.08

.365

.547

Age group II

54.00

1.64

0.80

0.11

Age group III

12.00

1.68

1.02

0.30

Anteroposterior width of the NPC at Incisive Foramen Level

Age group I

134.00

1.54

1.28

0.11

1.442

.232

Age group II

54.00

1.46

1.05

0.14

Age group III

12.00

1.88

1.79

0.52