Table 1.
Mean transportation ± standard deviation (in millimeters) of central axis after instrumentation at 10 points from apical constriction in L-shaped root canals
Group | 0 mm | 1 mm | 2 mm | 3 mm | 4 mm | 5 mm | 6 mm | 7 mm | 8 mm | 9 mm |
---|---|---|---|---|---|---|---|---|---|---|
PTU | 0.06 ± 0.03b | 0.06 ± 0.03a | 0.06 ± 0.04a,b | 0.05 ± 0.04a | 0.10 ± 0.06a | 0.16 ± 0.05a | 0.11 ± 0.04a | 0.06 ± 0.04a | 0.04 ± 0.04a | 0.05 ± 0.04a |
WO | 0.10 ± 0.03b | 0.11 ± 0.03b | 0.07 ± 0.04b | 0.06 ± 0.04a | 0.16 ± 0.04b | 0.22 ± 0.04b | 0.16 ± 0.03b | 0.07 ± 0.02a | 0.03 ± 0.01a | 0.02 ± 0.01a |
PTN | 0.05 ± 0.02a | 0.07 ± 0.04a | 0.06 ± 0.02a | 0.06 ± 0.04a | 0.11 ± 0.03a | 0.16 ± 0.02a | 0.10 ± 0.02a | 0.07 ± 0.02a | 0.07 ± 0.03b | 0.08 ± 0.03b |
P value | <0.05 | <0.05 | <0.05 | >0.05 | <0.05 | <0.05 | < 0.05 | >0.05 | < 0.05 | < 0.05 |
Within the same column, values with same superscript letter were not statistically different.