Table 1.
Medians, interquartile ranges, and Kruskal–Wallis statistics (with Dunn’s post-hoc test) for areas containing gutta-percha in each sample group (pixels). For comparing C, M and A thirds in each group, the Friedman test was used
| After obturation | After removal of obturation material | XP Endo | ( P ) | |
|---|---|---|---|---|
| C | 521.00 (253.12) Aab | 81.75 (148.12) Ba | 0.00 (11.75) Ba | <0.05 |
| M | 783.25 (322.87) Aa | 59.50 (110.75) Ba | 3.75 (53.62) Ba | <0.05 |
| A | 338.25 (486.87) Ab | 16.75 (51.87) Ba | 0.00 (8.75) Ba | <0.05 |
| ( P ) | <0.05 | 0.3342 | 0.8105 | |
| After obturation | After removal of obturation material | PUI | ( P ) | |
| C | 588.75 (429.75) Aa | 19.50 (33.87) Ba | 4.00 (35.00) Ba | <0.05 |
| M | 685.00 (495.37) Aa | 52.00 (117.87) Ba | 31.50 (80.75) Ba | <0.05 |
| A | 335.50 (487.37) Aa | 23.50 (28.75) Ba | 11.75 (12.47) Ba | <0.05 |
| ( P ) | 0.0625 | 0.0927 | 0.3235 | |
| After obturation | After removal of obturation material | Easy Clean | ( P ) | |
| C | 700.25 (343.50) Aab | 22.75 (31.87) Ba | 3.00 (9.87) Ba | <0.05 |
| M | 772.75 (359.25) Aa | 30.00 (81.12) Ba | 19.35 (32.65) Ba | <0.05 |
| A | 317.50 (196.00) Ab | 0.00 (39.00) Ba | 0.00 (7.50) Ba | <0.05 |
| ( P ) | <0.05 | 0.1615 | 0.0600 |
Different uppercase letters in the horizontal direction and different lowercase letters in the vertical direction: statistically significant differences; C, M, A: Coronal, Medical, Apical thirds of the roots