Table 4.
Clinical variables (mean ± standard deviation) of probing pocket depth (PPD) and clinical attachment level (CAL) at baseline (T0), 6 weeks after baseline (T1), and 12 weeks after baseline (T2) (sites of PPD≥ 6mm at baseline)
| Mean ± standard deviation | Between-group p value | Intra-group p value | ||||
|---|---|---|---|---|---|---|
| T0 | T1 | T2 | Comparison of slopes | T0 vs T1 T0 vs T2 |
||
| PPD (mm) | Test | 6.85 ± 0.91 | 5.04 ± 1.55 | 4.38 ± 1.58 | p =0.658 |
p <0.001* p <0.001* |
| Control | 6.83 ± 0.79 | 5.02 ± 1.33 | 4.28 ± 1.29 |
p <0.001* p <0.001* |
||
|
Comparison 2 groups at time point |
p =0.910 | p =0.887 | p =0.563 | |||
| CAL (mm) | Test | 7.13 ± 1.89 | 5.59 ± 1.98 | 4.81 ± 2.11 | p =0.806 |
p <0.001* p <0.001* |
| Control | 7.12 ± 1.47 | 5.69 ± 1.66 | 4.79 ± 1.71 |
p <0.001* p <0.001* |
||
|
Comparison 2 groups at time point |
p =0.934 | p =0.973 | p =0.914 | |||
Repeated measures analysis of variance test was used in the between-group comparison of slopes. Multivariate analysis of variance was used in between-group comparison at each time point. Paired-sample t test was used in the intra-group comparison
*p <0.05