[Table/Fig-4]:
Statistical analysis of MID of different concentrations (% w/w) of neem extract, ketoconazole, nystatin and chlorhexidine diacetate against Streptococcus mutans in Viscogel tissue conditioner and without any microbial agents using Kruskal Wallis test.
| Group -Streptococcus Mutans | 24 hours | 7 Days | Wilcoxon sign rank test | ||||
|---|---|---|---|---|---|---|---|
| N | Mean (SD) | Median (Q1-Q3) | Mean (SD) | Median (Q1-Q3) | z | p-value | |
| 1- Neem extract (7.5%) | 12 | 21.83 (0.39) | 22 (22-22) | 21.25(0.43) | 21 (21-21.75) | -2.646b | .008 |
| 2- Neem extract (15%) | 12 | 23.67 (0.49) | 24 (23-24) | 23.33 (0.49) | 23 (23-24) | -2.00 | 0.046* |
| 3 – Ketoconazole (5%) | 12 | 6.00 (0) | 6 (6-6) | 6.00 (0) | 6 (6-6) | 0 | 1.00(NS) |
| 4– Ketoconazole (10%) | 12 | 6.00 (0) | 6 (6-6) | 6.00 (0) | 6 (6-6) | 0 | 1.00(NS) |
| 5 – Nystatin (5%) | 12 | 6.00 (0) | 6 (6-6) | 6.00 (0) | 6 (6-6) | 0 | 1.00(NS) |
| 6– Nystatin (10%) | 12 | 6.00 (0) | 6(6-6) | 6.00 (0) | 6(6-6) | 0 | 1.00(NS) |
| 7- Chlorhexidine diacetate (5%) | 12 | 24.17 (0.38) | 24(24 -24) | 24.08 (0.28) | 24(24 -24) | -1.000b | .317 |
| 8- Chlorhexidine diacetate(10%) | 12 | 25.67 (0.49) | 26(25-26) | 25.33 (0.49) | 25(25-26) | -2.000b | .046 |
| 9 - Control | 12 | 6(0) | 6(6-6) | - | - | - | - |
| Kruskal Wallis test | Chi-square value | 106.07 | 106.16 | ||||
| p-value | <0.001* | <0.001* | |||||
*
p<0.05 statistically significant p>0.05 non significant, NS