Table 1 Descriptive statistics and 95% CIs for the mesiodistal and buccolingual dimensions of the teeth (mm). The P values are calculated using the t-test

Maxilla

Right

1st molar

Mesiodistal

Female

31

6.91

0.49

7.1

6.73

7.09

6.15

8.16

Male

30

7.52

0.49

6.5

7.34

7.70

6.10

8.36

Both

61

7.21

0.57

7.9

7.06

7.36

6.10

8.36

Buccolingual

Female

31

8.57

0.54

6.3

8.37

8.76

7.23

9.48

Male

30

9.30

0.66

7.1

9.05

9.54

7.44

10.01

Both

61

8.92

0.70

7.8

8.74

9.10

7.23

10.01

2nd molar

Mesiodistal

Female

50

8.65

0.50

5.8

8.51

8.79

7.75

9.96

Male

41

9.36

0.68

7.3

9.15

9.57

7.96

10.53

Both

91

8.97

0.68

7.6

8.83

9.11

7.75

10.53

Buccolingual

Female

50

9.67

0.46

4.8

9.53

9.80

8.89

10.99

Male

41

10.27

0.58

5.6

10.09

10.46

8.78

11.16

Both

91

9.94

0.60

6.0

9.81

10.06

8.78

11.16

Left

1st molar

Mesiodistal

Female

26

6.92

0.53

7.7

6.70

7.13

6.19

8.31

Male

24

7.58

0.59

7.8

7.33

7.82

5.60

8.56

Both

50

7.23

0.65

9.0

7.05

7.42

5.60

8.56

Buccolingual

Female

26

8.44

0.55

6.5

8.22

8.67

7.20

9.66

Male

24

9.34

0.77

8.2

9.02

9.67

7.34

10.22

Both

50

8.88

0.80

9.0

8.65

9.10

7.20

10.22

2nd molar

Mesiodistal

Female

41

8.60

0.54

6.3

8.43

8.77

7.68

9.98

Male

36

9.46

0.69

7.3

9.22

9.69

7.75

10.52

Both

77

9.00

0.75

8.3

8.83

9.17

7.68

10.52

Buccolingual

Female

41

9.72

0.50

5.1

9.56

9.87

8.86

10.83

Male

36

10.34

0.59

5.7

10.14

10.54

8.75

11.08

Both

77

10.01

0.62

6.2

9.87

10.15

8.75

11.08

Mandible

Right

1st molar

Mesiodistal

Female

24

7.67

0.50

6.5

7.46

7.88

6.70

9.04

Male

25

8.48

0.38

4.5

8.32

8.63

7.68

8.98

Both

49

8.08

0.60

7.4

7.91

8.25

6.70

9.04

Buccolingual

Female

24

7.50

0.47

6.3

7.31

7.70

6.44

8.42

Male

25

8.27

0.53

6.4

8.06

8.49

7.45

9.23

Both

49

7.90

0.63

8.0

7.72

8.08

6.44

9.23

2nd molar

Mesiodistal

Female

31

9.54

0.44

4.6

9.38

9.70

8.78

10.81

Male

33

10.46

0.63

6.0

10.24

10.69

9.07

11.34

Both

64

10.02

0.71

7.1

9.84

10.19

8.78

11.34

Buccolingual

Female

31

8.88

0.40

4.5

8.73

9.02

8.18

9.78

Male

33

9.93

0.75

7.6

9.66

10.19

7.99

11.00

Both

64

9.42

0.80

8.5

9.22

9.62

7.99

11.00

Left

1st molar

Mesiodistal

Female

22

7.66

0.48

6.3

7.45

7.87

6.68

8.77

Male

26

8.41

0.39

4.6

8.25

8.57

7.71

8.95

Both

48

8.07

0.57

7.1

7.90

8.23

6.68

8.95

Buccolingual

Female

22

7.37

0.43

5.8

7.18

7.56

6.56

8.22

Male

26

8.10

0.55

6.8

7.88

8.32

7.17

9.33

Both

48

7.77

0.62

8.0

7.59

7.94

6.56

9.33

2nd molar

Mesiodistal

Female

34

9.66

0.47

4.9

9.49

9.82

8.80

10.80

Male

36

10.41

0.62

6.0

10.20

10.62

8.92

11.56

Both

70

10.04

0.67

6.7

9.88

10.20

8.80

11.56

Buccolingual

Female

34

8.92

0.44

4.9

8.76

9.07

8.15

9.96

Male

36

9.83

0.75

7.6

9.58

10.09

8.26

11.01

Both

70

9.39

0.77

8.2

9.20

9.57

8.15

11.01