A Two-Year Longitudinal Study of the Effectiveness of the CRT® Bacteria Test in Evaluating Caries Risk in Three-Year-Old Children
Table 2
Caries status of the 140 children in different CRT-SM levels over two years.
Examination
SM level
Number of participants
Number of caries cases
Caries prevalence (%)
SNK
χ2
dmft ()
SNK
χ2
dmfs ()
SNK
χ2
CSI ()
SNK
χ2
Initial exam
0
49
8
16.33
B
12.66
<0.001
0.45 ± 1.08
B
15.63
<0.01
0.53 ± 1.32
B
15.14
<0.01
1.22 ± 2.93
B
16.40
<0.001
1
33
11
33.33
B
A
1.39 ± 2.50
B
A
2.15 ± 4.18
B
A
4.28 ± 9.67
B
A
2
31
15
48.39
A
2.19 ± 2.97
A
2.77 ± 4.43
A
6.45 ± 9.78
A
3
27
14
51.85
A
2.63 ± 3.33
A
4.78 ± 8.14
A
9.58 ± 12.30
A
Follow-up exam after two years
0
49
25
51.02
B
11.07
<0.001
1.98 ± 2.76
C
23.71
<0.0001
2.82 ± 4.34
C
23.35
<0.0001
5.56 ± 8.49
C
24.69
<0.0001
1
33
22
66.67
B
3.30 ± 3.87
C
B
5.27 ± 7.07
C
B
9.81 ± 13.39
C
B
2
31
22
70.97
B
A
4.52 ± 4.55
B
6.61 ± 7.44
B
13.83 ± 15.78
B
3
27
24
88.89
A
6.96 ± 4.69
A
12.37 ± 10.65
A
23.56 ± 18.20
A
Increase over two years
0
49
17
34.69
A
0.06
>0.05
1.53 ± 2.27
B
14.74
<0.01
2.29 ± 3.83
B
19.03
<0.001
4.34 ± 7.42
B
17.93
<0.001
1
33
11
33.33
A
1.91 ± 2.43
B
3.12 ± 4.23
B
5.53 ± 6.78
B
2
31
7
22.58
A
2.32 ± 2.59
B
3.84 ± 4.36
B
7.38 ± 8.11
B
3
27
10
37.04
A
4.33 ± 3.43
A
7.59 ± 6.45
A
13.98 ± 12.32
A
Note. Differences between groups with identical letters denoting SNK ranking are not statistically significant, while differences between groups with different letters are statistically significant. The level of SNK is ranked alphabetically.
