Table 2.
Mean weight loss (in mg) according to the NaOCl solution concentration and contact time
| Contact time | Model type | Renewal mode | NaOCl 2.5% | NaOCl 9.8% | P -value |
|---|---|---|---|---|---|
| 1 min | Model | Ren 0 | 0.1±0 | 1.2±0.2 | 0.057 |
| Ren 30s | 0.9±0.2 | 7.4±1.4 | |||
| Ren 1min | 0.9±0.3 | 4.2±2.2 | |||
| Tube | Ren 0 | 3.5±2.4 | 16.3±2 | ||
| Ren 30s | 6±2 | 17.4±2.5 | |||
| Ren 1min | 4.8±2.3 | 11.4±4.2 | |||
| 2 min | Model | Ren0 | 2.1±0.2 | 7.6±2 | 0.004 |
| Ren 30s | 4.3±1 | 16.6±2.6 | |||
| Ren 1min | 3.4±1.8 | 11.6±2 | |||
| Tube | Ren 0 | 6,6±1 | 32.3±4 | ||
| Ren 30s | 10±1.8 | 35.4±4.2 | |||
| Ren 1min | 6.7±2 | 31.5±2.3 | |||
| 3 min | Model | Ren 0 | 1.7±0.1 | 35.7±4.2 | 0.009 |
| Ren 30s | 4.6±1.9 | 19.6±3 | |||
| Ren 1min | 2.8±1.3 | 13.3±3 | |||
| Tube | Ren 0 | 7.9±1.8 | 12.5±1.4 | ||
| Ren 30s | 15.8±1.3 | 44±3.6 | |||
| Ren 1min | 9.1±3 | 40.5±4 |
Ren 0=no renewal, Ren 30s= renewal every 30 s, Ren 1min = renewal every minute