Table 1.
Time and mean percent volume of residual filling materials in root canals after retreatment procedures
| Instrument | Mean percent volume of residual filling materials | Time in seconds | P- value | |||
|---|---|---|---|---|---|---|
| Excluding fractured files | Including fractured files | |||||
| Mean (SD) | P- value | Mean (SD) | P- value | Mean (SD) | ||
| Reciproc | 29.246 (13.6) | 0.89* | 29.32 (13.71) | 0.26* | 138.98 (32.93) | 0.91* |
| Protaper Next | 24.43 (13.445) | 29.87 (15.31) | 113.81 (20.2) | |||
| Wave One Gold | 20.208 (11.208) | 34.99 (26.03) | 133.63 (33.71) | |||
| Hyflex CM | 25.39 (12.404) | 0.57** | 48.82 (27.36) | 0.11** | 120.65 (24.36) | 0.99** |
| Control memory | 27.18 (13.24) | 29.56 (13.99) | 128.76 (30.36) | |||
| Shape memory | 22.51 (11.31) | 41.9 (26.77) | 127.86 (28.94) | |||
* Statistical analysis with ANOVA test (P>0.05); ** Statistical analysis with Student´s T-test (P>0.05)