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Table 10 Comparison of our Caucasian in-out values with those measured by Andrews

From: Three-dimensional assessment of teeth first-, second- and third-order position in Caucasian and African subjects with ideal occlusion

Caucasians—in-out

Andrews—in-out

Comparison

 

n

Mean

Standard deviation

n

Mean

Standard deviation

t test

p level

U1

60

1.48

0.30

240

2.01

0.32

−11.88

<0.001

U2

60

1.15

0.24

240

1.84

0.30

−18.36

<0.001

U3

60

1.66

0.34

240

2.67

0.39

−19.75

<0.001

U4

60

1.61

0.24

240

2.54

0.35

−24.19

<0.001

U5

60

1.66

0.29

240

2.48

0.36

−18.53

<0.001

U6

60

2.01

0.47

240

2.88

0.40

−12.86

<0.001

U7

60

2.75

0.62

238

3.00

0.51

−2.85

0.006

L1

60

1.01

0.32

240

1.59

0.27

−12.97

<0.001

L2

60

0.93

0.32

240

1.64

0.32

−14.98

<0.001

L3

60

1.38

0.27

240

2.37

0.40

−22.91

<0.001

L4

60

1.93

0.28

240

2.72

0.43

−17.36

<0.001

L5

60

1.91

0.32

240

2.60

0.34

−14.55

<0.001

L6

60

2.66

0.38

240

3.02

0.40

−6.37

<0.001

L7

60

2.83

0.72

236

2.79

0.47

0.37

ns

  1. ns not significant.