Changes in Talbott’s gingival index by group and measurement period
| Group | N | Base | 1 week | 2 weeks | 4 weeks | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mean | SD | Mean | SD | Mean | SD | Mean | SD | |||||
| E1 | 30 | 1.33 | 0.19 | 1.31 | 0.16 | 1.24 | 0.13 |
1.19 | 0.13 |
|||
| E2 | 30 | 1.33 | 0.17 | 1.35 | 0.15 | 1.33 | 0.11b | 1.26 | 0.12b | |||
| NC | 30 | 1.36 | 0.15 | 1.37 | 0.10 | 1.41 | 0.09c | 1.44 | 0.10 |
|||
| PC | 30 | 1.35 | 0.16 | 1.31 | 0.16 | 1.22 | 0.13 |
1.12 | 0.11 |
|||
| p-value+ | .814 | .334 | .000 | .000 |
SD: standard deviation, E1: experimental group, E2: comparison group, NC: negative control group, PC: positive control group.
+p-value by one way ANOVA, abcSame letter means no statistical difference by Scheffe test.
*p<0.05 by paired t-test between base and after.
