Table 4 Comparison of the odontometric data of the three-rooted DMSMs and three-rooted PMFMs
DMSMs (n = 70) \(\overline{X}\) ± S | PMFMs (n = 42) \(\overline{X}\) ± S | t value | p value | |
|---|---|---|---|---|
Length of DB root (mm) | 8.4 ± 1.5 | 12.3 ± 1.3 | 14.27 | < 0.001 |
Length of DL root (mm) | 7.4 ± 1.5 | 11.0 ± 1.3 | 13.06 | < 0.00 |
Level of distal root furcation (mm) | 3.3 ± 0.8 | 4.6 ± 0.8 | 8.45 | < 0.001 |
Spreading angle of DB root (degrees) | 32.8 ± 8.7 | 19.9 ± 5.9 | 8.53 | < 0.001 |
Spreading angle of DL root (degrees) | 34.6 ± 8.4 | 26.8 ± 6.5 | 5.18 | < 0.001 |
Angle of distal root furcation (degrees) | 67.4 ± 14.4 | 46.7 ± 9.5 | 8.30 | < 0.001 |
Angle of curvature of DB root (degrees) | 22.7 ± 13.5 | 15.8 ± 6.8 | 3.08 | < 0.01 |
Angle of curvature of DL root (degrees) | 16.4 ± 11.3 | 34.2 ± 16.1 | 6.89 | < 0.001 |