A Two-Year Longitudinal Study of the Effectiveness of the CRT^® Bacteria Test in Evaluating Caries Risk in Three-Year-Old Children

Table 1

Caries status of 140 children of both genders over two years.

Examination

Gender

Number of participants

Number of caries cases

Caries prevalence (%)

χ^2

dmft ()

Z

dmfs ()

Z

CSI ()

Z

Initial exam

Boy

70

28

40.00

2.03

>0.05

1.46 ± 2.18

1.00

>0.05

2.07 ± 4.28

0.92

>0.05

4.23 ± 6.54

0.99

>0.05

Girl

70

20

28.57

1.50 ± 2.91

2.39 ± 5.40

5.20 ± 11.14

Total

140

48

34.29

1.48 ± 2.56

2.23 ± 4.86

4.71 ± 9.11

Follow-up exam after two years

Boy

70

46

65.71

0.03

>0.05

3.73 ± 4.11

−0.10

>0.05

5.93 ± 7.60

−0.10

>0.05

11.43 ± 14.19

−0.17

>0.05

Girl

70

47

67.14

3.90 ± 4.39

6.23 ± 8.29

12.30 ± 15.82

Total

140

93

66.43

3.81 ± 4.24

6.08 ± 7.93

11.87 ± 14.98

Increase over two years

Boy

70

18

25.71

2.65

>0.05

2.27 ± 2.83

−0.46

>0.05

3.86 ± 5.14

−0.39

>0.05

7.20 ± 9.88

−0.41

>0.05

Girl

70

27

38.57

2.40 ± 2.79

3.84 ± 4.85

7.11 ± 8.55

Total

140

45

32.14

2.34 ± 2.80

3.85 ± 4.98

7.15 ± 9.20