Table 4. Absolute Estimation Errors (AEE), for the different groups of image quality.
|
AEE
(C, G0) |
AEE
(C, G1) |
AEE
(C, G2) |
AEE
(S, G0) |
AEE
(S, G1) |
AEE
(S, G2) |
Difference between EE for G2 (C-S) | |
|---|---|---|---|---|---|---|---|
| N | 18 | 83 | 166 | 32 | 55 | 180 | 135 |
| Mean | 17.36 | 21.80 | 23.63 | 24.96 | 23.37 | 27.89 | 2.78 |
| Error Deviation | 10.19 | 14.52 | 15.11 | 21.63 | 13.84 | 16.14 | 12.57 |
| Minimum | 2.31 | 0.63 | 0.05 | 0.66 | 0.50 | 0.16 | -24.55 |
| Maximum | 41.42 | 74.75 | 72.32 | 75.38 | 62.88 | 68.67 | 39.12 |
(G0 – poor quality due to root curvature and, consequently, pulp cutting; G1 – poor quality due to poor image definition; G2 – good quality; C=Coronal; S=Sagittal)