Table 2 Showing the overall comparison of the age, SDA, PIL, PD, and MPAA among the four study groups

Age

1

90

51.88

14.58

27

80

3.42

0.65 (NS)

2

55

49.98

14.65

20

70

3

32

49.17

15.63

18

72

4

23

51.4

14.82

27

80

SDA

1

90

0

0

0

0

226.27

< 0.001*

2

55

7.6

3.41

2

14

3

32

0

0

0

0

4

23

12.86

4.73

3

21

Palatal intralveolar length (PIL)

1

90

44.21

4.23

37.33

55.15

79.00

< 0.001*

2

55

39.81

1.93

36.06

44.15

3

32

40.37

1.92

36.16

44.09

4

23

35.91

1.87

33.03

40.22

Palatal depth (PD)

1

90

13.16

1.18

10.55

15.35

51.12

< 0.001*

2

55

14.90

1.58

10.48

16.93

3

32

15.47

2.48

6.84

21.55

4

23

17.35

1.26

14.02

20.45

Mid palatal arch angle (MPAA)

1

90

123.67

3.62

117.50

131.20

48.18

< 0.001*

2

55

119.73

2.26

116.00

124.00

3

32

120.62

2.39

116.00

126.00

4

23

116.81

2.94

110.00

123.10