Table 2: Results of multilevel adjusted mixed effect model with repeated measures for the changes of ICDAS score (Model 1).
| – |
– |
Coefficient |
95%CI |
P-value |
| Intercept |
-0.268 |
(-0.309 - -0.227) |
<0.001 |
| Gender |
Male |
Reference |
| Female |
-0.091 |
(-0.104 - -0.079) |
<0.001 |
| Age by month |
0.001 |
(0.001 - 0.001) |
<0.001 |
| Stimulated saliva volume |
-0.007 |
(-0.009- -0.005) |
<0.001 |
| Cariogenic Bacteria |
S. mutans |
- |
Reference |
– |
– |
– |
| + |
0.148 |
(0.128 - 0.168) |
<0.001 |
| LB |
- |
Reference |
– |
– |
– |
| + |
0.060 |
(0.050 - 0.070) |
<0.001 |
| df |
0.009 |
(0.007 - 0.012) |
<0.001 |
| Maxilla Mandibular |
Mandibular |
Reference |
– |
– |
– |
| Maxilla |
0.058 |
(0.048- 0.068) |
<0.001 |
| Tooth type |
Anterior |
Reference |
– |
– |
– |
| Premolar |
-0.028 |
(-0.040- -0.015) |
<0.001 |
| Molar |
0.064 |
(0.052 - 0.076) |
<0.001 |
| Tooth surface |
Lingual or Palatal |
Reference |
– |
– |
– |
| Buccal |
0.177 |
(0.156 -0.198) |
<0.001 |
| Approximal |
0.004 |
(-0.006 - 0.014) |
0.397 |
| Occlusal |
0.254 |
(0.222 - 0.285) |
<0.001 |
The model is specified in S1 File. All the factors investigated in this study showed statistically significant correlations for the ICDAS score, with only one exception.
The approximal surface had not statistically significant risk when compared with the lingual or palatal surface.