Table 5.
The average value of probing depth.
| Observation period | Mean ± SD | p value | |
|---|---|---|---|
| Probing depth (mm) | 6-12 months | 2.12 ± 0.54a | 0.035∗ |
| 12-18 months | 1.87 ± 0.49 | ||
| 18-24 months | 1.5 ± 0.19a |
∗ p < 0.05. aStatistically significant difference (p = 0.02).
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