Table 3 Minimum, maximum, mean ± standard error, standard deviation and median values of time to reach apex (seconds)
Group | N | Minimum | Maximum | Mean ± std error | Std Deviation | Median | P value |
|---|---|---|---|---|---|---|---|
ProTaper Universal | 11 | 90.00 | 111.00 | 98.27 ± 2.09 | 6.93 | 96.00c | < 0,05 |
Reciproc R25 | 12 | 69.00 | 88.00 | 77.67 ± 1.81 | 6.27 | 77.50b | |
R-Endo | 12 | 175.00 | 201.00 | 187.67 ± 2.46 | 8.52 | 188.00d | |
XP-Endo Retreat | 12 | 43.00 | 65.00 | 53.00 ± 2.28 | 7.91 | 51.00a | |
Hand File | 11 | 216.00 | 236.00 | 224.82 ± 2.27 | 7.52 | 225.00e |