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Comparison of the mean CFU of predisinfected and postdisinfected samples of three groups
| Groups | N | Mean CFU/mL | Standard deviation | |
|---|---|---|---|---|
| Predisinfection | Group I CHX | 20 | 56.1000 | 14.27512 |
| Group II diode laser | 20 | 56.3000 | 18.70013 | |
| Group III saline | 20 | 60.3000 | 17.98274 | |
| Total | 60 | 45.4000 | 24.19637 | |
| Postdisinfection | Group I CHX | 20 | 26.1000 | 17.06613 |
| Group II diode laser | 20 | 22.4000 | 19.81068 | |
| Group III saline | 20 | 55.8000 | 18.64234 | |
| Total | 60 | 34.7667 | 23.65097 |
