Table 1.
Comparative evaluation of mean plaque scores between two groups
| Group | Plaque index (mean ± SD) | P value intragroup comparison | ||||
|---|---|---|---|---|---|---|
| 0th day | 30th day | 90th day | 0–30 day | 0–90 day | 30–90 day | |
| Group A (neem gel) | 1.60 ± 0.19 | 1.13 ± 0.14 | 0.99 ± 0.13 | <0.001** | <0.001** | 0.006* |
| Group B (CHX gel) | 1.67 ± 0.19 | 1.11 ± 0.18 | 0.93 ± 0.15 | <0.001** | <0.001** | 0.001* |
| P value intergroup comparison | 0.169 | 0.621 | 0.118 | – | – | – |
SD = standard deviation, CHX = chlorhexidine
* P < 0.05––statistically significant
**P < 0.001––statistically highly significant