Table 1 The oral indexes of different gender and source of students

Mean DMFT

0.79

1.12

0.39

1.48*

0.97

Caries prevalence rate (%)

34.49

44.42

16.16

64.00*

39.96

Detection rate of gingivitis (%)

61.90

58.72

63. 24

56. 13

59.50

Detection rate of dental calculus (%)

63.34

61.02

64. 22

60. 51

62.64

OHI-S

0.78

0.63

0.70

0.66

0.69

DI-S

0.41

0.33

0.35

0.38

0.36

CI-S

0.37

0.30

0.35

0.28

0.33

CFI

0.23

0.35

0.42

0.15*

0.29

Prevalence rate of dental fluorosis (%)

6.18

9.72

11.86

5.34*

8.13