Table 3.
Comparison of the mean values of DMFS of the different tooth surfaces between FMR at least in elementary school and No FMR.
| FMR | N | Pit and fissure surface |
Proximal surface |
Smooth surface |
||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mean | 95% CI |
Pa | Mean | 95% CI |
Pa | Mean | 95% CI |
Pa | ||||||||
| Low | – | High | Low | – | High | Low | – | High | ||||||||
| No | 364 | 2.48 | 2.18 | – | 2.77 | .002 | 1.24 | -0.94 | – | 1.55 | .006 | 0.75 | 0.55 | – | 0.95 | .001 |
| Yes | 187 | 1.75 | 1.38 | – | 2.11 | 0.64 | 0.34 | – | 0.94 | 0.32 | 0.17 | – | 0.47 | |||
| Difference (%)b | 29.4 | 48.4 | 57.3 | |||||||||||||
a
Welch's t test (2-tailed) comparing mean DMFS between reference (ref.) and another category.
b
Difference of mean values of DMFS.
CI, confidence interval; DMFS, decayed, missing, and filled surfaces; FMR, fluoride mouth rinse.