Table 2. | Comparison of the microhardness (HV) of the tested materials |
| Material | Coronal third | Middle third | Apical third | |||
|---|---|---|---|---|---|---|
| Median (IQR) | P-value | Median (IQR) | P-value | Median (IQR) | P-value | |
| TotalFill® BC Sealer™ | 13.2 (2.85; 13.45)a,b | 0.146 | 13.1 (12.85; 13.3)a,b | 0.146 | 13.1 (12.6; 13.55)a,b | 0.146 |
| AH Plus® Bioceramic Sealer | 8.9 (8.15; 9.65)c | 0.146 | 6.8 (5.95; 6.9)c | 0.146 | 7.4 (7.25; 7.75)c | 0.146 |
| BioRoot™ RCS | 20.4 (20.05; 20.9)a,d | 0.146 | 23.6 (22.35; 23.95)a,d | 0.146 | 27.3 (26.7; 29)a,d | 0.146 |
| AH Plus® Jet™ | 11.6 (1.4; 12.05)b,c | 0.146 | 17.2 (14.15; 18.15)b,c | 0.146 | 16.3 (16; 17.2)b,c | 0.146 |
| ProRoot® MTA | 68.3 (64.15; 69.3)d | 0.146 | 67.8 (66.65; 68.7)d | 0.146 | 70.3 (70.05; 71.45)d | 0.146 |
Superscript letters (a to d) indicate statistically significant differences between materials within each third of the root canal, according to the compact letter display (CLD) method. Materials that share the same letter are not significantly different, whereas materials that do not share any letters are significantly different (P < 0.05, based on the non-parametric Kruskal-Wallis test followed by Dunn's post-hoc test).
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