Table 2 Variation of root canal after preparation by 4 processing movement (mean ± SD)
Groups | The variation of root canal after preparation | ||||
|---|---|---|---|---|---|
Working length (mm) | The mean of offset on central axis (mm) | Curvature (°) | preparation time (s) | Success rate (%) | |
Group 1 | .20 ± .16 | .085 ± .040 | 2.12 ± 1.04 | 83.25 ± 15.31 | 90 |
Group 2 | .32 ± .11 | .137 ± .050 | 3.75 ± 1.37 | 52.32 ± 3.84 | 80 |
Group 3 | .26 ± .11 | .104 ± .043 | 3.02 ± 1.48 | 124.51 ± 6.17 | 85 |
Group 4 | .18 ± .12 | .075 ± .035 | 2.12 ± 0.95 | 55.42 ± 4.64 | 90 |
P-value | 0.021 | 0.010 | 0.028 | 0.039 | N/A |